PureCrypter has used SmartAssembly and NET-Reactor for string encryption and control flow obfuscation.23
tool
PureCrypter S9019
- Type
- malware
- Platform
- Windows
- Created
- 16 April 2026
- Last modified
- 23 April 2026
PureCrypter is a fully-featured malware loader, developed by a threat actor called “PureCoder," that has been in use since at least 2021 to distribute a variety of remote access trojans and information stealers.[1]
26
TechniquesTop 11%
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 S9019
PureCrypter can insert junk code to avoid detection.4
PureCrypter can retrieve the username from targeted machines.5
PureCrypter has used multiple file names to appear legitimate such as firefox\firefox.exe, Google\chrome.exe, and Taskmgr.exe.6
PureCrypter has used a .NET downloader named 63342221.BAT and has used .jpg, .png, and .log as false extensions for malicious files.7
PureCrypter can maintain persistence with scheduled tasks.8
Standing S9019
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
Techniques26Top 11%
89th percentile · 89% 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 / technique10.5medBottom 16%
16th percentile · 84% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique3med
Detection coverage S9019
1087 distinct rules cover the 26 techniques recorded for this tool. The 1149 technique-to-rule mappings resolve to 1087 distinct rules, because one rule can cover several techniques. 731 Sigma · 356 Splunk.
21 covered by at least one rule5 with no coverage1087 distinct rules in total
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