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Analysis
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max time kernel
149s -
max time network
93s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
10/06/2024, 03:33
Static task
static1
Behavioral task
behavioral1
Sample
23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe
Resource
win10v2004-20240508-en
General
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Target
23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe
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Size
82KB
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MD5
40e0a772bc2eb44acb5663f9094c8f3d
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SHA1
67ffa2a2dc0ce31349db69288fb507581218ab46
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SHA256
23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d
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SHA512
966b4674b31f0b8e86ea8fc5ced01276db70d98349ec657e8ab10a3eb65fc2b46246d51790778e0fdeda8b143fe60bf95b393012b9b8856488cf5d277aaf2b71
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOGcWpd:GhfxHNIreQm+HilcWpd
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 3124 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe File created C:\Windows\SysWOW64\¢«.exe 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe File created C:\Windows\system\rundll32.exe 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\MSipv 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717990691" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717990691" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3124 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 3124 rundll32.exe 3124 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2696 wrote to memory of 3124 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 85 PID 2696 wrote to memory of 3124 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 85 PID 2696 wrote to memory of 3124 2696 23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe"C:\Users\Admin\AppData\Local\Temp\23cbbbb8526f67de37a25f98dabcc16363ae9357dbf3f7a0d50be56636ce1f2d.exe"1⤵
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:3124
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
79KB
MD55cd2d8cc24f5c3d7289f37e78d84ab07
SHA1841ce2ec2e679ee6967696311226db696bb66500
SHA25608080e3307f30139732100057678c5f59a7beb65ffddacbc4cc52eee33b8c3f7
SHA512906edf6b02a3d77fc5cea8814ed54b6a7ac8e8f1335df02642a5984cc188a97fadcf8156ff13f36949ee75a216625eaa4d7245c0a2d60af3a9b5fd7c8405f8b5
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Filesize
73KB
MD5d2c0dd76e05e3ed2106089468b2d65a2
SHA1642967312de7e370e19515651b6cb460bec6e87e
SHA25613cd0eb0d1b9065937173ff5e79f8b5088e0690d65e60d3782a491366697d2e3
SHA5128e9c96fe25347aa869797e0ceba8adf0d74ad34a76a24e4fb9eb23dfdfe521b130802e3b2c8ee303f365b2bce51e70ff7bd211645c0c20b79a7ceba5d0dfc69a