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Analysis
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max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
13/06/2024, 19:42
Static task
static1
Behavioral task
behavioral1
Sample
131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
Resource
win10v2004-20240508-en
General
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Target
131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe
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Size
82KB
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MD5
cb3e9ac089012bb811edc08abce1e35f
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SHA1
c2f414df59586e332fd17f6f7e54cdf4e03aad6b
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SHA256
131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c
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SHA512
d65a49bc6bd7a92df1628d061c86433b76344000cbd1e511a02e0570de19cb7f824d94be10ea82b6a1ef0666c1a983bf1180e98d9a5443e062e83e767b170c22
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO5a6M:GhfxHNIreQm+HiKa6M
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4780 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 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 -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\notepad¢¬.exe 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe File created C:\Windows\SysWOW64\¢«.exe 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe File created C:\Windows\system\rundll32.exe 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718307776" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.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 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718307776" 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" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4780 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 4780 rundll32.exe 4780 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3716 wrote to memory of 4780 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 85 PID 3716 wrote to memory of 4780 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 85 PID 3716 wrote to memory of 4780 3716 131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.exe"C:\Users\Admin\AppData\Local\Temp\131737354fa9851c749328facb863eecd106cc0f8ca2841c05e6a0c9a468d80c.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:3716 -
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:4780
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
78KB
MD502a2764f20a147a250d1cad01e35792f
SHA1858482ab666e2d21d26e4445f940f845b2946e37
SHA2568619916157f8d1b870e4acc22ab17772b156e69dc1a636adb72fd3d5536d8def
SHA5122e27b17426d65c0d133f53faab4261e9a7abe815a46240c8c65e1e225e35d89a6a6820cbaf594e71a4afd3c3de2d471582f2621db15d49363bd8ba77b26dd5e9
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Filesize
81KB
MD5cbda941fca575f4ee0eb1e45101574ba
SHA198cc068dfc49f5f6143458225d504c270272603b
SHA25617bd8c990370a20b7da8b1ca4cbb174a666bd1b9aab4ab00f7752127080e0924
SHA512e534c56171bc0b6aa47d6ca929d4a06850fc775b44b7796c903cfd2a9d0f6846c25de200cd639cd742a47e9d249f6b40358f03a2959b56e51c1bd4ebdcb18c0d