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Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
22/04/2024, 20:21
Static task
static1
Behavioral task
behavioral1
Sample
8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
Resource
win10v2004-20240412-en
General
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Target
8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe
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Size
74KB
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MD5
a7d7be50cf4724f4752f97644cf64fbc
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SHA1
aaa43524fcca8bbd24e736119e22df6cbe7e301b
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SHA256
8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7
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SHA512
31587192e2aa2219c21ad7a83afa7eae88db7b6db933e3bf97ca0c1c38b499f993289a42d2a641a00a930c3a2e624f6963bcd719d84fd05a830f7168ecf6efc7
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SSDEEP
768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOQ8:RshfSWHHNvoLqNwDDGw02eQmh0HjWOQ8
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 3248 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 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe File created C:\Windows\SysWOW64\¢«.exe 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe File created C:\Windows\system\rundll32.exe 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1713817289" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.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 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1713817289" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3248 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 3248 rundll32.exe 3248 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1412 wrote to memory of 3248 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 87 PID 1412 wrote to memory of 3248 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 87 PID 1412 wrote to memory of 3248 1412 8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.exe"C:\Users\Admin\AppData\Local\Temp\8e55ae294dad77c7edf84f5c74d80f19cfe0c5e59dcfb45d00d93556777d2ef7.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:1412 -
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:3248
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
78KB
MD5eccbd634451642336b7420c50f6ffd44
SHA15b5f2a4db40df52c0eadd7f7df858bc57ecaf26c
SHA256f06e5090d92c17f499a2333f2c53e604b797f5b302112ec78f63b2cd9cd554ea
SHA5127a5a27c0664cdf043cbf54389ca2a416dc93d46633701215010756fe444cea8c376480a668844804330a86ab84ba54f84fcd8ce01a92bf501e93daf41146562f
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Filesize
78KB
MD5113480628b2f0b545fe5d70f3e5ccf2b
SHA1f7cd89bcfd7bcd3355eaa98e0a01d505c4898f2d
SHA256be1450e58d0cb839e117c3db470ec21bbe1053b4637989defbcf65b9b0c16b1c
SHA5129a22e435387c143571b07229fca916322b84b51c000754ec9e63f598bb3bf7aac96ba4e10a81dcb6ee1b69f623d251344af95597f3936bbc19ff8c5102062c8f