General
- Target zzzz.rar
- Size 15KB
- Sample260925-zzrnashf63
- SHA256 19a271adc757865215ac651612ffc2f2a036d231a0d95a5ba03105c5d06794b2
- MD5 abd1fc1fefd041b55acea6636851367f
- SHA1 4d644c8b367330ed36c7d99e6844bf493f303c54
- SHA512 d141cd7ee937e2b8ed6725c06dca005670ec9727dea5de7e9e043e732e04bd06de916426b02644ff92eb7379f298c6a720f3ee7e3523d072a5551195a2261ea0
- SSDEEP 384:SjgflGDkBcxgrkaAHmbkOulpafKC2CoFyroETEUltydnZ:ScdNBcSbAGIOulaKUrpoetyJZ
- TLSH T1E162CF123342884E0A6AD0ED06234F33DDD4E21E5E7378045F23AC793692E727838AB9
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
zzzz.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
zzzz.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
xworm
-
5.0
-
36.tcp.cpolar.top:14300
-
xsZvBoWPFk9OfUqg
-
install_file
USB.exe
Targets
-
- Target zzzz.exe
- Size 32KB
- SHA256 ab3ee33342d9f4d35d69af94a9759f2031ba04aef4bea4a40ce5172f32d9fc81
- MD5 b306611c5ec7bfccf00ac68dd2d4f266
- SHA1 b67e659dfc23a6bb16d420b872198bb52ff87416
- SHA512 87f525581f88dd788031804d273f916968c7cba80ed81aeca75e18e86c7471efa57984fb83830c2867204314724c3c470a2ac2e94042dd49c990d575bd33e1d5
- SSDEEP 768:LRPD9OQhx/Bg3Tw46xdVFE9jT6Ojhobz:Ld9OW/g3U46FFE9jT6Ojm/
- TLSH T1E7E23B4877E44712D6FEAFF129F261061270D517E913EFAE0CE485E62B67AC087407E6
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
-
Detect Xworm Payload
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UAC bypass
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
-
Disables Task Manager via registry modification
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
-
Modifies system executable filetype association
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Active Setup
1Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Active Setup
1Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
5