General
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Target
ef4bdcb7a4565b7a4879d30ba9ed8c0466f82ca8695dcb7942479e2105b562d7.exe
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Size
4.9MB
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Sample
241128-vkrmjatnax
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MD5
364f9aa7879d48ffeb12ca794d1a1fb6
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SHA1
7c5e4c6237881d714d43a95cfe69a4d15d8ff641
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SHA256
ef4bdcb7a4565b7a4879d30ba9ed8c0466f82ca8695dcb7942479e2105b562d7
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SHA512
a6175b2facffdc57a98e77791cff47cf3b4ffba13e0ae433052bb70bdf94948a2724d0ba7e993094bb63f248dae9f78b8f615b7676299442b37aee61efc5492d
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SSDEEP
49152:jl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8O:O
Static task
static1
Behavioral task
behavioral1
Sample
ef4bdcb7a4565b7a4879d30ba9ed8c0466f82ca8695dcb7942479e2105b562d7.exe
Resource
win7-20240708-en
Malware Config
Extracted
colibri
1.2.0
Build1
http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php
http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php
Targets
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Target
ef4bdcb7a4565b7a4879d30ba9ed8c0466f82ca8695dcb7942479e2105b562d7.exe
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Size
4.9MB
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MD5
364f9aa7879d48ffeb12ca794d1a1fb6
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SHA1
7c5e4c6237881d714d43a95cfe69a4d15d8ff641
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SHA256
ef4bdcb7a4565b7a4879d30ba9ed8c0466f82ca8695dcb7942479e2105b562d7
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SHA512
a6175b2facffdc57a98e77791cff47cf3b4ffba13e0ae433052bb70bdf94948a2724d0ba7e993094bb63f248dae9f78b8f615b7676299442b37aee61efc5492d
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SSDEEP
49152:jl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8O:O
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Colibri family
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Dcrat family
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
2