TAINTEDSCRIBE has used FakeTLS for session authentication.2
tool
TAINTEDSCRIBE S0586
- Type
- malware
- Platform
- Windows
- Created
- 5 March 2021
- Last modified
- 25 April 2025
TAINTEDSCRIBE is a fully-featured beaconing implant integrated with command modules used by Lazarus Group. It was first reported in May 2020.[1]
16
Techniques70th pct
7
Tactics68th 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 S0586
TAINTEDSCRIBE can randomly pick one of five hard-coded IP addresses for C2 communication; if one of the IP fails, it will wait 60 seconds and then try another IP address.3
The TAINTEDSCRIBE command and execution module can perform target system enumeration.4
TAINTEDSCRIBE can execute FileRecvWriteRand to append random bytes to the end of a file received from C2.5
The TAINTEDSCRIBE main executable has disguised itself as Microsoft’s Narrator.6
TAINTEDSCRIBE can execute ProcessList for process discovery.7
Standing S0586
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
Techniques1670th pct
70th percentile · 70% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics768th pct
68th percentile · 68% of 825 ATT&CK software entries have this many tactics spanned or fewer.
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 / technique8.5medBottom 12%
12th percentile · 88% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique6med
Detection coverage S0586
391 distinct rules cover the 16 techniques recorded for this tool. The 400 technique-to-rule mappings resolve to 391 distinct rules, because one rule can cover several techniques. 274 Sigma · 117 Splunk.
14 covered by at least one rule2 with no coverage391 distinct rules in total
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