General
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Target
JC_a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1
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Size
1.6MB
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Sample
230905-wzp8paab8x
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MD5
1bcddbf266ca5ead13f8fda22f798fd6
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SHA1
a416fc0d6616d02d9032c63e2f1dea351fc356d9
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SHA256
a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1
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SHA512
4bee8aa62248c7581349e308bd2861145a9c8a937f0c8a5bfb3c5d0a6952b7227a5d9328600e7349eb8c60f07ae75e695c9c5b0f0b1f56b2bd916417d6abe979
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SSDEEP
49152:fjPrzD4vARLDQNZw9vnQ1MSltub4RWfl7RVwO+6N:fDrzD4vA1DQ2gfI4e9VVT
Behavioral task
behavioral1
Sample
JC_a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
JC_a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1.exe
Resource
win10v2004-20230831-en
Malware Config
Targets
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Target
JC_a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1
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Size
1.6MB
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MD5
1bcddbf266ca5ead13f8fda22f798fd6
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SHA1
a416fc0d6616d02d9032c63e2f1dea351fc356d9
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SHA256
a945f87d013f6b70b25cf80ed405f0636d4d2c968079cfd542bd2eda37aba7d1
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SHA512
4bee8aa62248c7581349e308bd2861145a9c8a937f0c8a5bfb3c5d0a6952b7227a5d9328600e7349eb8c60f07ae75e695c9c5b0f0b1f56b2bd916417d6abe979
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SSDEEP
49152:fjPrzD4vARLDQNZw9vnQ1MSltub4RWfl7RVwO+6N:fDrzD4vA1DQ2gfI4e9VVT
Score10/10-
FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
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Fatal Rat payload
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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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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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Adds Run key to start application
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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