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Analysis
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max time kernel
149s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
13/06/2024, 04:39
Static task
static1
Behavioral task
behavioral1
Sample
cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe
Resource
win10v2004-20240508-en
General
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Target
cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe
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Size
78KB
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MD5
62a9734fff3c70800eb7ebfe22c159f2
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SHA1
dbb793db6a0c8ff572648d00cbfd4ed3f04d379c
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SHA256
cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f
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SHA512
6a9fc3afc31939fe9a82328b0de93ecd023556fb960386c1e987edac00efbff7d1261888d9e96f5aaaef1a3a1f3c62e24d0af363c89e198ba2d3c4233885f823
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO6wHNt:GhfxHNIreQm+HitwHNt
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1692 rundll32.exe -
Loads dropped DLL 2 IoCs
pid Process 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.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 Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\¢«.exe cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe File created C:\Windows\SysWOW64\notepad¢¬.exe cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe File opened for modification C:\Windows\SysWOW64\¢«.exe cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe File created C:\Windows\system\rundll32.exe cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718253554" 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.exe %1" cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.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 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 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 Key created \REGISTRY\MACHINE\Software\Classes\MSipv cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718253554" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1692 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 1692 rundll32.exe 1692 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2328 wrote to memory of 1692 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 28 PID 2328 wrote to memory of 1692 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 28 PID 2328 wrote to memory of 1692 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 28 PID 2328 wrote to memory of 1692 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 28 PID 2328 wrote to memory of 1692 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 28 PID 2328 wrote to memory of 1692 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 28 PID 2328 wrote to memory of 1692 2328 cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.exe"C:\Users\Admin\AppData\Local\Temp\cda6cf771a14fcbb4b3ce9e5be5492d2f099061affa8b5d8a20687fd865a281f.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:2328 -
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:1692
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
83KB
MD554422be0e266f1ebc72d94be406c180a
SHA1d09a62013b355fd7e1d6241d6d05006e023514bc
SHA25642b578a7dac2157601ac10c8ea72747c98720b92ad3f7321e3ee0b186bc02208
SHA512833c67f64c82280bc0f10bd7ce07de00efa048f3840060e4bf98a59bd30be2f1bcde1d920b300504d89e9c593f02359df88e25da08a67ee97bb4b0c8dc2e18d6
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Filesize
81KB
MD53b34b2d86b06082dbef93b9084f6419d
SHA10e7007fe2efc6bea1cf0358befafc1be3aeedae6
SHA256a95f62bc801f3d0dc4a59e7fbf6d96890174281b9ff8f3fe7c3cf2dd78b9f680
SHA5126d53ae550a2e7128ac7ffda1cfaf4515f8a80421163f71ac4e8116e93b4fbd67f7a59bfa44137f01fcd981c47ce2f90f4fec7d2c7dc2310718b9105a84c1e7ab