General
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Target
CodeBreakerLoader_upd.exe
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Size
1.3MB
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Sample
240512-l4rbfaaf7t
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MD5
a0ffef11ce8c416f14343ebe0762091d
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SHA1
1cc1f6b1c2da06f2e876a2e538f98b39c563f790
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SHA256
d7d6202f1c8f4e020e239da950edb219ddbc22f2fd119d37b1ae7dac6bd82088
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SHA512
a141588fa02287762b5a6a372f88abe4eb8453ebb49311a915dec55f2363eb9b96fd15ce2566eec28436b74a4c6529936d089a5b4a955da6f20236d533f10efd
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SSDEEP
24576:G2G/nvxW3WjL76C14yIUzKfuB5+M1eWhWx24yKlM3ipj49:GbA3m6C14y4uB/oxgUw0y
Behavioral task
behavioral1
Sample
CodeBreakerLoader_upd.exe
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
CodeBreakerLoader_upd.exe
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Size
1.3MB
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MD5
a0ffef11ce8c416f14343ebe0762091d
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SHA1
1cc1f6b1c2da06f2e876a2e538f98b39c563f790
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SHA256
d7d6202f1c8f4e020e239da950edb219ddbc22f2fd119d37b1ae7dac6bd82088
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SHA512
a141588fa02287762b5a6a372f88abe4eb8453ebb49311a915dec55f2363eb9b96fd15ce2566eec28436b74a4c6529936d089a5b4a955da6f20236d533f10efd
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SSDEEP
24576:G2G/nvxW3WjL76C14yIUzKfuB5+M1eWhWx24yKlM3ipj49:GbA3m6C14y4uB/oxgUw0y
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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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Modifies WinLogon for persistence
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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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Disables Task Manager via registry modification
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Downloads MZ/PE file
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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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Adds Run key to start application
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1