malware

Matryoshka S0167

Type: malware
Platform: Windows
Created: 16 January 2018
Last modified: 17 November 2024

Matryoshka is a malware framework used by CopyKittens that consists of a dropper, loader, and RAT. It has multiple versions; v1 was seen in the wild from July 2016 until January 2017. v2 has fewer commands and other minor differences. [1] [2]

Techniques47th pct

Tactics68th pct

Threat groupunranked

CampaignsNone recorded

Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.

Standing S0167

Reach is how much of ATT&CK this malware touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 825 ATT&CK software entries only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.

Select	Description	Category	Status	Event	OS	Product	MITRE ATT&CK	CVEs	Severity	Author	Created	Updated	ID
	Detects potential DLL sideloading of DLLs that are known to be abused from suspicious locations	Generic	test	image_load	windows	Sysmon	Execution Command and Scripting Interpreter	-	high	X__Junior (Nextron Systems)	2023-07-11	—	799a5f48-0ac1-4e0f-9152-71d137d48c2a
	Detects usage of winget to add a new insecure (http) download source. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter	-	high	Nasreddine Bencherchali (Nextron Systems)	2023-04-17	—	81a0ecb5-0a41-4ba1-b2ba-c944eb92bfa2
	Detects usage of winget to add new additional download sources	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter	-	medium	Nasreddine Bencherchali (Nextron Systems)	2023-04-17	—	05ebafc8-7aa2-4bcd-a269-2aec93f9e842
	Detects usage of winget to add new potentially suspicious download sources	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter	-	medium	Nasreddine Bencherchali (Nextron Systems)	2023-04-17	2023-12-04	c15a46a0-07d4-4c87-b4b6-89207835a83b
	Detects indicators of APT 29 (Cozy Bear) phishing-campaign as reported by mandiant	Emerging	stable	process_creation	windows	Sysmon · WinEventLog Security	Stealth System Binary Proxy Execution Rundll32	-	critical	Florian Roth (Nextron Systems), @41thexplorer	2018-11-20	2023-03-08	7453575c-a747-40b9-839b-125a0aae324b
	Detects indicators of APT 29 (Cozy Bear) phishing-campaign as reported by mandiant	Emerging	stable	file_event	windows	Sysmon	Stealth System Binary Proxy Execution Rundll32	-	critical	@41thexplorer	2018-11-20	2023-02-20	3a3f81ca-652c-482b-adeb-b1c804727f74
	Detects spawning of suspicious child processes by Atlassian Confluence server which may indicate suc (...)	Emerging	test	process_creation	linux	Sysmon	Execution Command and Scripting Interpreter Initial Access Exploit Public-Facing Application	CVE-2022-26134	high	Nasreddine Bencherchali (Nextron Systems)	2022-06-03	—	7fb14105-530e-4e2e-8cfb-99f7d8700b66
	Detects automated lateral movement by Turla group	Unsupported	unsupported	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter Discovery File and Directory Discovery Discovery Network Share Discovery Lateral Movement Remote Services SMB/Windows Admin Shares	-	medium	Markus Neis	2017-11-07	2023-02-24	75925535-ca97-4e0a-a850-00b5c00779dc
	Identifies when a new cloudshell is created inside of Azure portal.	Generic	test	cloud_audit	-	Azure Activity Logs · Azure	Execution Command and Scripting Interpreter	-	medium	Austin Songer	2021-09-21	2022-08-23	72af37e2-ec32-47dc-992b-bc288a2708cb
	Detects attackers using tooling with bad opsec defaults. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Stealth System Binary Proxy Execution Rundll32	-	high	Oleg Kolesnikov @securonix invrep_de, oscd.community, Florian Roth (Nextron Systems), Christian Burkard (Nextron Systems)	2020-10-23	2024-08-15	a7c3d773-caef-227e-a7e7-c2f13c622329
	Detects usage of the "FromBase64String" function in the commandline which is used to decode a base64 (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter PowerShell Stealth Deobfuscate/Decode Files or Information Stealth Obfuscated Files or Information	-	high	Florian Roth (Nextron Systems)	2020-01-29	2023-01-26	e32d4572-9826-4738-b651-95fa63747e8a
	detects BPFDoor .lock and .pid files access in temporary file storage facility	Generic	test	file_event	linux	Linux Auditd	Execution Command and Scripting Interpreter Execution Native API	-	high	Rafal Piasecki	2022-08-10	2026-03-30	808146b2-9332-4d78-9416-d7e47012d83d
	Detects the use of the "capsh" utility to invoke a shell.	Generic	test	process_creation	linux	Sysmon	Execution Command and Scripting Interpreter	-	high	Li Ling, Andy Parkidomo, Robert Rakowski, Blake Hartstein (Bloomberg L.P.)	2024-09-02	—	db1ac3be-f606-4e3a-89e0-9607cbe6b98a
	Detects the execution of the certutil with the "exportPFX" flag which allows the utility to export certificates.	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Stealth Obfuscated Files or Information	-	medium	Florian Roth (Nextron Systems), Jonhnathan Ribeiro, oscd.community, Nasreddine Bencherchali (Nextron Systems)	2023-02-15	2024-03-05	3ffd6f51-e6c1-47b7-94b4-c1e61d4117c5
	Detects execution of ChromeLoader malware via a registered scheduled task	Emerging	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter PowerShell Execution, Persistence, Privilege Escalation Scheduled Task/Job Scheduled Task Persistence Software Extensions	-	high	@kostastsale	2022-01-10	—	0a74c5a9-1b71-4475-9af2-7829d320d5c2
Splunk	This analytic detects Cisco IOS-XE guestshell enable activity followed by activation and destroy lifecycle logs. (...)	Anomaly	stable	network_device	-	Cisco IOS · Cisco	Execution Command and Scripting Interpreter Privilege Escalation Escape to Host	-	medium	Nasreddine Bencherchali	2026-05-19	2026-05-20	ff82a536-8fde-4963-a801-815826fcdf75
Splunk	This analytic detects Cisco IOS-XE "request platform software package describe" commands containing suspicious shell-style filename patterns. (...)	Generic	stable	network_device	-	Cisco IOS · Cisco	Execution Command and Scripting Interpreter Initial Access Exploit Public-Facing Application	-	medium	Nasreddine Bencherchali	2026-05-19	2026-05-20	a113a8be-7386-46e0-a079-d9fd46f9631f
Splunk	Detects a Unix-based (Linux or macOS) browser process spawning a Unix shell that establishes an outbound connection to an external destination. (...)	Anomaly	stable	network_connection	-	Cisco NVM · Cisco	Execution Command and Scripting Interpreter	-	medium	Maria Jose Erquiaga, Splunk	2026-09-02	2026-09-22	6f2de8d1-9a2d-4c7a-9b8c-3b8a2f7d0e41
Splunk	This analytic detects suspicious python package installations where the package name resembles popular Python libraries but may be typosquatted or slightly altered. (...)	Generic	stable	network_connection	-	Cisco NVM · Cisco	Execution Command and Scripting Interpreter	-	medium	Nasreddine Bencherchali, Splunk	2025-07-01	2026-09-22	5e3f6b44-42cb-4f8a-99f0-59e78a52ea1d
Splunk	This analytic identifies the use of Chromium-based browsers (like Microsoft Edge) running in headless mode with the `--dump-dom` argument. (...)	Generic	stable	network_connection	-	Cisco NVM · Cisco	Execution Command and Scripting Interpreter Command and Control Ingress Tool Transfer	-	medium	Nasreddine Bencherchali, Splunk	2025-07-01	2026-09-22	cd0e816f-f67d-4dbe-a153-480b546e867e
Splunk	The following analytic detects file downloads involving executable, archive, or scripting-related file types that are commonly used in malware delivery. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Execution Command and Scripting Interpreter Execution Exploitation for Client Execution	-	medium	Nasreddine Bencherchali, Splunk	2025-04-09	2026-09-22	24b2c2e3-2ff7-4a23-b814-87f8a62028cd
Splunk	This analytic detects exploitation activity of CVE-2025-5777 using Cisco Secure Firewall Intrusion Events. (...)	Generic	stable	firewall	-	Cisco Secure Firewall · Cisco	Execution Command and Scripting Interpreter Execution Exploitation for Client Execution	CVE-2025-5777	medium	Michael Haag, Nasreddine Bencherchali, Splunk, Talos NTDR	2025-07-17	2026-05-13	93db24a0-fd21-45d7-9daf-84afd5a8cca2
Splunk	The following analytic detects internal systems that generate an unusually high volume of intrusion detections within a 30-minute window. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Reconnaissance Active Scanning Vulnerability Scanning Command and Control Application Layer Protocol Execution Command and Scripting Interpreter	-	medium	Nasreddine Bencherchali, Splunk	2025-04-16	2026-05-13	9f2295a0-0dcb-4a5f-b013-8a6f2a3c11f6
Splunk	This analytic detects Lumma Stealer activity using Cisco Secure Firewall Intrusion Events. (...)	Generic	stable	firewall	-	Cisco Secure Firewall · Cisco	Initial Access Exploit Public-Facing Application Lateral Movement Exploitation of Remote Services Stealth Obfuscated Files or Information Execution User Execution	-	medium	Nasreddine Bencherchali, Splunk, Talos NTDR	2025-04-16	2026-05-13	96bce783-c22e-4e48-8cf1-3eb2794c5083
Splunk	The following analytic highlights high-impact intrusion events assigned by Cisco Secure Firewall. (...)	Anomaly	experimental	firewall	-	Cisco Secure Firewall · Cisco	Execution Command and Scripting Interpreter Resource Development Develop Capabilities Malware Execution Exploitation for Client Execution	-	medium	Nasreddine Bencherchali, Splunk	2025-04-16	2026-05-13	244a77bb-3b2a-46f1-bf2c-b4f7cd29276d
Splunk	This analytic detects HTTP requests to privileged execution paths on Cisco routers, specifically targeting the `/level/15/exec/-/*` endpoint using Cisco Secure Firewall Intrusion Events. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Execution Command and Scripting Interpreter Persistence Server Software Component Web Shell	-	medium	Nasreddine Bencherchali, Michael Haag, Splunk	2026-01-12	2026-05-13	0c1d2e3f-4a5b-6c7d-8e9f-0a1b2c3d4e5f
Splunk	The following analytic detects repeated malware file downloads initiated by the same internal host (src) within a short time window. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Ingress Tool Transfer Stealth Obfuscated Files or Information	-	medium	Nasreddine Bencherchali, Splunk	2025-04-09	2026-09-22	aeff2bb5-3483-48d4-9be8-c8976194be1e
Splunk	This analytic identifies Snort intrusion signatures that have been triggered by ten or more distinct internal IP addresses within a one-hour window. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Ingress Tool Transfer Stealth Obfuscated Files or Information	-	medium	Nasreddine Bencherchali, Splunk	2025-04-16	2026-05-13	a4c76d0a-56b6-44be-814b-939746c4d406
Splunk	The following analytic detects outbound connections initiated by command-line tools such as curl or wget. (...)	Anomaly	stable	firewall	-	Cisco Secure Firewall · Cisco	Command and Control Application Layer Protocol Web Protocols Execution Command and Scripting Interpreter Command and Control Ingress Tool Transfer Execution, Persistence, Privilege Escalation Scheduled Task/Job Cron	-	medium	Nasreddine Bencherchali, Splunk	2025-04-03	2026-05-13	173a1cb9-1814-4128-a9dc-f29dade89957
	Detects modification of Windows Registry Classes keys used for persistence. (...)	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Persistence, Privilege Escalation Boot or Logon Autostart Execution Registry Run Keys / Startup Folder	-	medium	Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)	2019-10-25	2025-10-22	9df5f547-c86a-433e-b533-f2794357e242
	Detects Clfs.sys being loaded by a process running from a potentially suspicious location. (...)	Generic	experimental	image_load	windows	Sysmon	Execution Command and Scripting Interpreter	-	medium	X__Junior	2025-01-20	—	fb4e2211-6d08-426b-8e6f-0d4a161e3b1d
	Detects suspicious DNS queries known from Cobalt Strike beacons	Generic	test	dns	-	-	Command and Control Application Layer Protocol DNS	-	critical	Florian Roth (Nextron Systems)	2018-05-10	2022-10-09	2975af79-28c4-4d2f-a951-9095f229df29
	Rundll32 can be use by Cobalt Strike with StartW function to load DLLs from the command line.	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Stealth System Binary Proxy Execution Rundll32	-	high	Wojciech Lesicki	2021-06-01	2022-09-16	ae9c6a7c-9521-42a6-915e-5aaa8689d529
	Detects launch of executable by calling the LaunchApplication function from pcwutl.dll library.	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Stealth System Binary Proxy Execution Rundll32	-	medium	Julia Fomina, oscd.community	2020-10-05	2023-02-09	9386d78a-7207-4048-9c9f-a93a7c2d1c05
	Detects modification of autostart extensibility point (ASEP) in registry.	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Persistence, Privilege Escalation Boot or Logon Autostart Execution Registry Run Keys / Startup Folder	-	medium	Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split), wagga (name)	2019-10-25	2025-10-22	f59c3faf-50f3-464b-9f4c-1b67ab512d99
	Detects when the Console Window Host (conhost.exe) process is spawned by an uncommon parent process, which could be indicative of potential code injection activity.	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter	-	medium	Tim Rauch, Elastic (idea)	2022-09-28	2025-03-06	cbb9e3d1-2386-4e59-912e-62f1484f7a89
	Detects usage of the "ConvertTo-SecureString" cmdlet via the commandline. (...)	Generic	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter PowerShell Stealth Obfuscated Files or Information	-	medium	Teymur Kheirkhabarov (idea), Vasiliy Burov (rule), oscd.community, Tim Shelton	2020-10-11	2023-02-01	74403157-20f5-415d-89a7-c505779585cf
	Detects potential use of CreateRemoteThread api and LoadLibrary function to inject DLL into a proces (...)	Hunting	test	create_remote_thread	windows	Sysmon	Privilege Escalation, Stealth Process Injection Dynamic-link Library Injection	-	medium	Roberto Rodriguez @Cyb3rWard0g	2019-08-11	2024-01-22	052ec6f6-1adc-41e6-907a-f1c813478bee
Splunk	The following analytic detects the execution of the curl utility where the command line includes percent-encoded characters and explicit file output options (such as -o or --output). (...)	Anomaly	stable	process_creation	windows · linux	CrowdStrike · Sysmon · WinEventLog Security	Command and Control Ingress Tool Transfer Stealth Obfuscated Files or Information	-	medium	Nasreddine Bencherchali, Splunk	2026-03-03	2026-05-13	9a8d5516-4c5e-11ef-9d42-acde48001122
	Detects modification of autostart extensibility point (ASEP) in registry.	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Persistence, Privilege Escalation Boot or Logon Autostart Execution Registry Run Keys / Startup Folder	-	medium	Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)	2019-10-25	2023-08-17	f674e36a-4b91-431e-8aef-f8a96c2aca35
	Detects modification of autostart extensibility point (ASEP) in registry.	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Persistence, Privilege Escalation Boot or Logon Autostart Execution Registry Run Keys / Startup Folder	-	medium	Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)	2019-10-25	2025-10-22	20f0ee37-5942-4e45-b7d5-c5b5db9df5cd
	Detects modification of autostart extensibility point (ASEP) in registry.	Generic	test	registry_set	windows	Sysmon · WinEventLog Security	Persistence, Privilege Escalation Boot or Logon Autostart Execution Registry Run Keys / Startup Folder	-	medium	Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)	2019-10-25	2025-10-22	cbf93e5d-ca6c-4722-8bea-e9119007c248
	Detects exploitation attempt of CVE-2023-22518 (Confluence Data Center / Confluence Server), where an attacker can exploit vulnerable endpoints to e.g. (...)	Emerging	test	process_creation	linux	Sysmon	Execution Command and Scripting Interpreter Initial Access Exploit Public-Facing Application	CVE-2023-22518	high	Andreas Braathen (mnemonic.io)	2023-11-14	—	f8987c03-4290-4c96-870f-55e75ee377f4
	Detects exploitation attempt of CVE-2023-22518 (Confluence Data Center / Confluence Server), where an attacker can exploit vulnerable endpoints to e.g. (...)	Emerging	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter Initial Access Exploit Public-Facing Application	CVE-2023-22518	medium	Andreas Braathen (mnemonic.io)	2023-11-14	—	1ddaa9a4-eb0b-4398-a9fe-7b018f9e23db
	Detects execution of the legitimate Autoit3 utility from a suspicious parent process. (...)	Emerging	test	process_creation	windows	Sysmon · WinEventLog Security	Execution Command and Scripting Interpreter	-	high	Micah Babinski	2023-10-15	—	f8e9aa1c-14f2-4dbd-aa59-b98968ed650d
	Detects the usage of curl.exe, KeyScramblerLogon, or other non-standard/suspicious processes used to create Autoit3.exe. (...)	Emerging	test	file_event	windows	Sysmon	Execution Command and Scripting Interpreter Command and Control Ingress Tool Transfer	-	medium	Micah Babinski	2023-10-15	—	1a433e1d-03d2-47a6-8063-ece992cf4e73
	Detects attackers attempting to save, decrypt and execute the DarkGate Loader in C:\temp folder.	Emerging	test	file_event	windows	Sysmon	Execution Command and Scripting Interpreter	CVE-2024-21412	medium	Tomasz Dyduch, Josh Nickels	2024-05-31	—	df49c691-8026-48dd-94d3-4ba6a79102a8
	Detects usage of base64 utility to decode arbitrary base64-encoded text	Generic	test	process_creation	linux	Sysmon	Stealth Obfuscated Files or Information	-	low	Daniil Yugoslavskiy, oscd.community	2020-10-19	2021-11-27	e2072cab-8c9a-459b-b63c-40ae79e27031
	Detects usage of base64 utility to decode arbitrary base64-encoded text	Generic	test	process_creation	macos	-	Stealth Obfuscated Files or Information	-	low	Daniil Yugoslavskiy, oscd.community	2020-10-19	2022-11-26	719c22d7-c11a-4f2c-93a6-2cfdd5412f68
	Detects the deactivation and disabling of the Scheduled defragmentation task as seen by Slingshot AP (...)	Emerging	test	process_creation	windows	Sysmon · WinEventLog Security	Execution, Persistence, Privilege Escalation Scheduled Task/Job Scheduled Task	-	medium	Florian Roth (Nextron Systems), Bartlomiej Czyz (@bczyz1)	2019-03-04	2022-10-09	958d81aa-8566-4cea-a565-59ccd4df27b0

Title

Description

Matryoshka S0167

Matryoshka S0167

Matryoshka MITRE reference S0167

Standing S0167

Reach

Coverage

Matryoshka detections S0167