General
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Target
8d83e5b4ac12f481def08e0364e37dbd9050e30cfc4c8845193c305e63f0f7e2N.exe
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Size
4.9MB
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Sample
241219-g3tyqasrgq
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MD5
bfb301610f83af1d4383ee8816d436c0
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SHA1
843d1c6fcb394dd8c1d66352fb4d188440604d9d
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SHA256
8d83e5b4ac12f481def08e0364e37dbd9050e30cfc4c8845193c305e63f0f7e2
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SHA512
dd736c99af88d44e86d09fc43a42feadce506c37633ff531fe19bc2a402f3eaa4a1f5cdb22bc9858a73b7f711382df174cc6c42a16924d0baa251bcdb427b6e6
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SSDEEP
49152:Dl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:
Static task
static1
Behavioral task
behavioral1
Sample
8d83e5b4ac12f481def08e0364e37dbd9050e30cfc4c8845193c305e63f0f7e2N.exe
Resource
win7-20240903-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
8d83e5b4ac12f481def08e0364e37dbd9050e30cfc4c8845193c305e63f0f7e2N.exe
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Size
4.9MB
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MD5
bfb301610f83af1d4383ee8816d436c0
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SHA1
843d1c6fcb394dd8c1d66352fb4d188440604d9d
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SHA256
8d83e5b4ac12f481def08e0364e37dbd9050e30cfc4c8845193c305e63f0f7e2
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SHA512
dd736c99af88d44e86d09fc43a42feadce506c37633ff531fe19bc2a402f3eaa4a1f5cdb22bc9858a73b7f711382df174cc6c42a16924d0baa251bcdb427b6e6
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SSDEEP
49152:Dl5MTGChZpxtlBBgxchXb/zqP6DUtRgs5q289dAnSz44hnW1XgnYu6fYmPkMSx8E:
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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