Analysis
- max time kernel
149s - max time network
122s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system - submitted
02/06/2024, 22:29
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe
Resource
win7-20240221-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe
- Size 76KB
- Sample240602-2efreaad89
- SHA256 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424
- MD5 35e6553966b2b9f659b315f2448d8ee3
- SHA1 89c5cc10ed81ed3d1e3a829e692f4907fc6c043c
- SHA512 33f73ae37e22ca29c17c4df1f96b7d20c354f87463098fffd3d8ca14253a7d38734d789590dd31db0a0d6ce10a55a25ed252ac585f7849d75178666940f532f6
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOzw:RshfSWHHNvoLqNwDDGw02eQmh0HjWOs
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1028 rundll32.exe - Loads dropped DLL 2 IoCs
pid Process 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.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\¢«.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe File created C:\Windows\system\rundll32.exe 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe - Modifies registry class 15 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717367375" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717367375" rundll32.exe - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1028 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 1028 rundll32.exe 1028 rundll32.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2736 wrote to memory of 1028 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 28 PID 2736 wrote to memory of 1028 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 28 PID 2736 wrote to memory of 1028 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 28 PID 2736 wrote to memory of 1028 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 28 PID 2736 wrote to memory of 1028 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 28 PID 2736 wrote to memory of 1028 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 28 PID 2736 wrote to memory of 1028 2736 585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe"C:\Users\Admin\AppData\Local\Temp\585327f74832399d29bcb33c6feaeb02e2eeb1c7666ab3f8af6af17289de5424.exe"1⤵
- Loads dropped DLL
- 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:2736 -
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:1028
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 78KB
- SHA256 c446744fdcb4f9ae94a6236bf626f7bfdda0d4a6e8471e21915d027b129dcd3d
- MD5 e0d2bb595732265e7d785f0b652f035d
- SHA1 6d4c1d1d0dff305a57b0ca818ba8e19af72a4911
- SHA512 b04f3394aa7970228c8f599356f2347cdbb5d2a6dea4585290a9581e1e0f06697f79d30246d94c91b1ac37cd7da1594c2d7c378f0e9888f115dd9557e4e84de3
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOzCC:GhfxHNIreQm+HiMCC
- MD5 SHA1 SHA512 SSDEEP
- Path \Windows\system\rundll32.exe
- Size 73KB
- SHA256 13cd0eb0d1b9065937173ff5e79f8b5088e0690d65e60d3782a491366697d2e3
- MD5 d2c0dd76e05e3ed2106089468b2d65a2
- SHA1 642967312de7e370e19515651b6cb460bec6e87e
- SHA512 8e9c96fe25347aa869797e0ceba8adf0d74ad34a76a24e4fb9eb23dfdfe521b130802e3b2c8ee303f365b2bce51e70ff7bd211645c0c20b79a7ceba5d0dfc69a
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOZ:RshfSWHHNvoLqNwDDGw02eQmh0HjWOZ
- MD5 SHA1 SHA512 SSDEEP