Analysis
- 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
13/06/2024, 04:42
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe
Resource
win7-20240611-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe
- Size 75KB
- Sample240613-fbxd4avbqb
- SHA256 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b
- MD5 78b6bf5cefd6bb0aac3b5258a671934a
- SHA1 d4660bc39440a0c03b636601670697dd1d5bf765
- SHA512 b25751a85296213b50b66ece57530130571916867b95c18a46b7e0b461c22005b4f3013356eef0e2fd111b35d194cd75b60e55435eece565c6c3db0958d791dc
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOPD:RshfSWHHNvoLqNwDDGw02eQmh0HjWOPD
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2976 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\" %*" b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.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 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe - Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe File created C:\Windows\SysWOW64\notepad¢¬.exe b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe File opened for modification C:\Windows\SysWOW64\¢«.exe b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe File created C:\Windows\SysWOW64\¢«.exe b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe File created C:\Windows\system\rundll32.exe b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe - Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\MSipv 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 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718253752" 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\MSipv b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718253752" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2976 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 2976 rundll32.exe 2976 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4456 wrote to memory of 2976 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 86 PID 4456 wrote to memory of 2976 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 86 PID 4456 wrote to memory of 2976 4456 b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.exe"C:\Users\Admin\AppData\Local\Temp\b14518774148a69aa9da2c76e1fb790ddfff1ac550dd272839c19a4ec6c2288b.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:4456 -
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:2976
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 76KB
- SHA256 91bbd0ff2491f9d65d15ba1d1c06fa9075623e937696e357ce1a70608930c214
- MD5 ae131d80317e290ed4f215c1b1479e22
- SHA1 6655410815e9a4eb1a8fa59582626ad955f37675
- SHA512 1abfe1f19434abdd0d90ad7449768d1e0e788cff701cd7979c1ba4a2bda49ee23aef03641566752a55e4fbae385438993ca1d58a42f1f02bf5a5ef7c002e3d4d
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO441:GhfxHNIreQm+HiL41
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 74KB
- SHA256 478d599bdb3f4d06d7cedc4feaa86b14443426635c05c0143faa1217924dc5cc
- MD5 7e618fe5243fcb4867f91ea1867a7d70
- SHA1 20097fa73682efbbd1da68ec6d4b01cbbffb2c86
- SHA512 fbc406ed2d5a4f8685334fc4f11dfa91813a2517c7d052a263b50e45b3e8eed41f1917e619807072915ec9cc707a680d074f99370a46e5cf0d7040cbfa1c65cd
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOOpq:GhfxHNIreQm+HiBpq
- MD5 SHA1 SHA512 SSDEEP