NativeZone has, upon execution, displayed a message box that appears to be related to a Ukrainian electronic document management system.3
tool
NativeZone S0637
- Type
- malware
- Platform
- Windows
- Created
- 4 August 2021
- Last modified
- 25 April 2025
NativeZone is the name given collectively to disposable custom Cobalt Strike loaders used by APT29 since at least 2021.[1][2]
6
Techniques29th pct
3
TacticsBottom 21%
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 S0637
NativeZone can decrypt and decode embedded Cobalt Strike beacon stage shellcode.4
NativeZone can display an RTF document to the user to enable execution of Cobalt Strike stage shellcode.5
NativeZone has used rundll32 to execute a malicious DLL.6
NativeZone can check for the presence of KM.EkeyAlmaz1C.dll and will halt execution unless it is in the same directory as the rest of the malware's components.78
NativeZone has checked if Vmware or VirtualBox VM is running on a compromised host.9
Standing S0637
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
Techniques629th pct
29th percentile · 71% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics3Bottom 21%
21st percentile · 79% 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 / technique36.5medTop 17%
83rd percentile · 83% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique9.5med
Detection coverage S0637
202 distinct rules cover the 6 techniques recorded for this tool. The 204 technique-to-rule mappings resolve to 202 distinct rules, because one rule can cover several techniques. 143 Sigma · 59 Splunk.
6 covered by at least one rule202 distinct rules in total
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