General
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Target
eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12
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Size
147KB
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Sample
240716-q9extayemg
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MD5
448f1796fe8de02194b21c0715e0a5f6
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SHA1
935c0b39837319fda571aa800b67d997b79c3198
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SHA256
eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12
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SHA512
0b93b2c881b1351ff688089abf12bbfcff279c5d6ca8733d6d821c83148d73c85cfedf5ab5bc02c2145970124b518551db3a9fc701d8084f01009ae20f71a831
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SSDEEP
3072:l6glyuxE4GsUPnliByocWep0yjEJ3hDRMK89nB2:l6gDBGpvEByocWeebbMjV4
Behavioral task
behavioral1
Sample
eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12.exe
Resource
win10v2004-20240709-en
Malware Config
Extracted
C:\sYMY1N6ah.README.txt
braincipher
http://mybmtbgd7aprdnw2ekxht5qap5daam2wch25coqerrq2zdioanob34ad.onion
Targets
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Target
eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12
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Size
147KB
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MD5
448f1796fe8de02194b21c0715e0a5f6
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SHA1
935c0b39837319fda571aa800b67d997b79c3198
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SHA256
eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12
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SHA512
0b93b2c881b1351ff688089abf12bbfcff279c5d6ca8733d6d821c83148d73c85cfedf5ab5bc02c2145970124b518551db3a9fc701d8084f01009ae20f71a831
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SSDEEP
3072:l6glyuxE4GsUPnliByocWep0yjEJ3hDRMK89nB2:l6gDBGpvEByocWeebbMjV4
Score10/10-
Brain Cipher
Ransomware family based on Lockbit that was first observed in June 2024.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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Loads dropped DLL
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Drops desktop.ini file(s)
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Suspicious use of NtSetInformationThreadHideFromDebugger
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