Analysis
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max time kernel
149s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
11/06/2024, 11:29
Static task
static1
Behavioral task
behavioral1
Sample
882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe
Resource
win10v2004-20240508-en
General
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Target
882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe
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Size
84KB
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MD5
60a2358e346d88c4a2709a21f2584979
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SHA1
30a39b0e0cfd478c59bb92b30da0f0799892567b
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SHA256
882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b
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SHA512
6b80575dbd93bcb23a02026ac3e2f88b20e54b3f26fdc168afa95b90cded92b1e79e9c9e0a27edcfb11291335364d485ea0d13e388cd760f4d6c7659c53ed41d
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOr/BVNJ2oT:GhfxHNIreQm+HiE/BVNJ2oT
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4660 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process 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 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe File created C:\Windows\SysWOW64\¢«.exe 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe File created C:\Windows\system\rundll32.exe 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718105378" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718105378" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" 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 Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4660 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 4660 rundll32.exe 4660 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3188 wrote to memory of 4660 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 85 PID 3188 wrote to memory of 4660 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 85 PID 3188 wrote to memory of 4660 3188 882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.exe"C:\Users\Admin\AppData\Local\Temp\882102817c55b1f884a9256061123dc0508714992326ea92f4927dd8ec0ef27b.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:3188 -
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:4660
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
80KB
MD50d63035d1b9bfecb5a5f1e5d04866899
SHA1a8df07fcb5d7ed1c7b5f5db51ab29dd8f74e2791
SHA256cfa436a6dd4d2db5920eb8f876a5bb7fae153f35d6675d3b694a7dec59c82e29
SHA5123d576fdb6582e7a79e11d6f90807dbc122d9c09855c1ef56b18562121cc2fe175f8cda7775d097cf904ca56a10409ed702c42c188bd73896e51af129553f2c3b
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Filesize
76KB
MD5836c2b0bdb83e487e9ccdb072249d63f
SHA18a7cf1159cdfd0652933a302ae0912191773e72f
SHA2567ddafc22d0be0bfcbc4c4c262df630117ced1c519eed1401b97a12faecc6610e
SHA5126e1b4446f67626afa4d110abaee686dc4dcd4ebf42d9bacc9c6c3f8e8dfa49dab66be84a97d8c837e76b123570829a0a078bbf6e8531684650d91a00fad9fc72