Maze has decrypted strings and other important information during the encryption process. Maze also calls certain functions dynamically to hinder analysis.4
tool
Maze S0449
- Type
- malware
- Platform
- Windows
- Created
- 18 May 2020
- Last modified
- 25 April 2025
Maze ransomware, previously known as "ChaCha", was discovered in May 2019. In addition to encrypting files on victim machines for impact, Maze operators conduct information stealing campaigns prior to encryption and post the information online to extort affected companies.[1][2][3]
23
TechniquesTop 15%
8
TacticsTop 20%
2
Threat groupsunranked
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0449
Maze has inserted large blocks of junk code, including some components to decrypt strings and other important information for later in the encryption process.5
Maze operators have created scheduled tasks masquerading as "Windows Update Security", "Windows Update Security Patches", and "Google Chrome Security Update" designed to launch the ransomware.6
Maze has used WMI to attempt to delete the shadow volumes on a machine, and to connect a virtual machine to the network domain of the victim organization's network.78
Maze has used the "WNetOpenEnumW", "WNetEnumResourceW”, “WNetCloseEnum” and “WNetAddConnection2W” functions to enumerate the network resources on the infected machine.9
Maze has created scheduled tasks using name variants such as "Windows Update Security", "Windows Update Security Patches", and "Google Chrome Security Update", to launch Maze at a specific time.10
Standing S0449
Reach is how much of ATT&CK this tool 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.
Reach
Techniques23Top 15%
85th percentile · 85% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics8Top 20%
80th percentile · 80% of 825 ATT&CK software entries have this many tactics spanned or fewer.
Threat groups261% tie · 22 values
61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.
Campaigns085% tie · 8 values
85% of the population shares a single value across only 8 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
Rules / technique27med68th pct
68th percentile · 68% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique9med
Detection coverage S0449
962 distinct rules cover the 23 techniques recorded for this tool. The 1011 technique-to-rule mappings resolve to 962 distinct rules, because one rule can cover several techniques. 651 Sigma · 311 Splunk.
22 covered by at least one rule1 with no coverage962 distinct rules in total
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