General
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Target
ConsoleApp7.exe
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Size
53KB
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Sample
211231-keqg6sggb4
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MD5
b2993b2a7a1edba14742564de7e85cb2
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SHA1
cf7f1085978128cc082aec921d34d6d25e4ab19b
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SHA256
800b4455105a08833332092017909f9dd47bd4ebfb1cbddbe0b95658d03b8d64
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SHA512
a64951f5026a2f3bb01652bae0267b1d4b88b017a64208bb2e556a755a44e86eab0df33d43e759defe4caefc30693099b74fa1ebac90ff323ac2e555f51d892a
Static task
static1
Behavioral task
behavioral1
Sample
ConsoleApp7.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
ConsoleApp7.exe
Resource
win10-en-20211208
Malware Config
Extracted
C:\Users\Admin\RECOVERY INFORMATION.txt
Extracted
C:\$Recycle.Bin\RECOVERY INFORMATION.txt
Targets
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Target
ConsoleApp7.exe
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Size
53KB
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MD5
b2993b2a7a1edba14742564de7e85cb2
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SHA1
cf7f1085978128cc082aec921d34d6d25e4ab19b
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SHA256
800b4455105a08833332092017909f9dd47bd4ebfb1cbddbe0b95658d03b8d64
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SHA512
a64951f5026a2f3bb01652bae0267b1d4b88b017a64208bb2e556a755a44e86eab0df33d43e759defe4caefc30693099b74fa1ebac90ff323ac2e555f51d892a
Score10/10-
TargetCompany
Ransomware which encrypts files using a combination of ChaCha20, AES-128, and Curve25519, first seen in June 2021.
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TargetCompany Payload
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Modifies boot configuration data using bcdedit
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Nirsoft
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Executes dropped EXE
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Stops running service(s)
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Loads dropped DLL
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Modifies file permissions
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Suspicious use of SetThreadContext
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