Analysis
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max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
13/06/2024, 02:42
Static task
static1
Behavioral task
behavioral1
Sample
66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe
Resource
win10v2004-20240611-en
General
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Target
66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe
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Size
81KB
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MD5
71d163c173002cb4422c45d6db9591a3
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SHA1
4a667fe17593d1d169cbfe1aff53f74858c5d477
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SHA256
66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff
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SHA512
e8f25be89d7088e088d033d5f58f926a03faf4babc4d9fe405e3a15c12d99c45184d9ba15fae02668ef273d7d08f7c422d3cd8cd75bf66dd382daf59349181d4
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SSDEEP
768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOp/:RshfSWHHNvoLqNwDDGw02eQmh0HjWOb5
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4940 rundll32.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\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\notepad¢¬.exe 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe File created C:\Windows\SysWOW64\¢«.exe 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\system\rundll32.exe 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe File opened for modification C:\Windows\system\rundll32.exe 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718246578" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718246578" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.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 -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4940 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 4940 rundll32.exe 4940 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2968 wrote to memory of 4940 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 83 PID 2968 wrote to memory of 4940 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 83 PID 2968 wrote to memory of 4940 2968 66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.exe"C:\Users\Admin\AppData\Local\Temp\66c0fe59c7ce71778fca856e96c5868b4f40900d9924efc317e2401785c33dff.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:2968 -
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:4940
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
83KB
MD5ecd5eb607043d830481ec58aaa34cbe4
SHA1cda68ee968baf547370e7cc19d4061b3622b19fe
SHA256b610697ab4e72bfe9c452257ce41aff07efe2fb251ef7f4bb301e3d1cd96c9cd
SHA5129be3b2f20cfc21e9a7bf701efc31e4821eab214cff632d6db647292f9c5d9ea926c7442de3c89360b828ced5864514b3c516e883486e17cc6279ec768e1dc203
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Filesize
81KB
MD5d8b8995f8a6c85450522a6203e9224e8
SHA1741521abf99b88551be917f4742141a59819ec1b
SHA2566a20c8cf18683a0b266085e14b24ea661cf37424d16ef1a1b80b322ab5563f19
SHA512bcb81245bc8dcc51d28a963ba955241726664f02c024d93baaffbfc7e04f3426b035c4d812a5ce363ca41500b4dc75ce1d1f9e2c21c970a20ec259cc08b426ff