Pay2Key can identify the IP and MAC addresses of the compromised host.3
tool
Pay2Key S0556
- Type
- malware
- Platform
- Windows
- Created
- 4 January 2021
- Last modified
- 25 April 2025
Pay2Key is a ransomware written in C++ that has been used by Fox Kitten since at least July 2020 including campaigns against Israeli companies. Pay2Key has been incorporated with a leak site to display stolen sensitive information to further pressure victims into payment.[1][2]
8
Techniques38th pct
4
Tactics32nd pct
1
Threat groupunranked
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0556
Pay2Key has the ability to gather the hostname of the victim machine.5
Pay2Key has designated machines in the compromised network to serve as reverse proxy pivot points to channel communications with C2.67
Pay2Key can encrypt data on victim's machines using RSA and AES algorithms in order to extort a ransom payment for decryption.910
Standing S0556
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
Techniques838th pct
38th percentile · 62% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics432nd pct
32nd percentile · 68% of 825 ATT&CK software entries have more tactics spanned.
Threat group161% 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 / technique26med64th pct
64th percentile · 64% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique8.5med
Detection coverage S0556
185 distinct rules cover the 8 techniques recorded for this tool. The 191 technique-to-rule mappings resolve to 185 distinct rules, because one rule can cover several techniques. 109 Sigma · 76 Splunk.
8 covered by at least one rule185 distinct rules in total
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