Analysis
- max time kernel
149s - max time network
105s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
03/06/2024, 10:29
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe
Resource
win7-20231129-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe
- Size 79KB
- Sample240603-mjf6eabc8w
- SHA256 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d
- MD5 6cca57d4a487eef482e4efadcc5f1064
- SHA1 08e4f3ef15146d4754dd35ff0858b27436f57f1f
- SHA512 66bdb86fe5dc534d9c33afe8a4c1c08013e6e4fef6e519daf3f278a6c0c71e6d5f89b9482898eca9d940ed6496cbbae7126bab29ecc25b21d28cb595fc92d765
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOv+yAnHs:GhfxHNIreQm+HiE+yAnHs
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2180 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\" %*" 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.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 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe - Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe File created C:\Windows\SysWOW64\¢«.exe 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe File created C:\Windows\system\rundll32.exe 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe - Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.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\" %*" 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717410575" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717410575" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2180 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 2180 rundll32.exe 2180 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2472 wrote to memory of 2180 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 86 PID 2472 wrote to memory of 2180 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 86 PID 2472 wrote to memory of 2180 2472 25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.exe"C:\Users\Admin\AppData\Local\Temp\25245f6aa90efc0ec0a7955dac96deecc66f2b9febfb8322638412b1f3ded99d.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:2472 -
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:2180
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 73KB
- SHA256 13cd0eb0d1b9065937173ff5e79f8b5088e0690d65e60d3782a491366697d2e3
- MD5 d2c0dd76e05e3ed2106089468b2d65a2
- SHA1 642967312de7e370e19515651b6cb460bec6e87e
- SHA512 8e9c96fe25347aa869797e0ceba8adf0d74ad34a76a24e4fb9eb23dfdfe521b130802e3b2c8ee303f365b2bce51e70ff7bd211645c0c20b79a7ceba5d0dfc69a
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOZ:RshfSWHHNvoLqNwDDGw02eQmh0HjWOZ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 78KB
- SHA256 4691f045f7ead6f4bc33b35b88c7334147189bce8e15ad6f23a8e73085176989
- MD5 f1cb9ef27049538326cb26b665a57a54
- SHA1 360bb1365e8b112723e89956196120c99af81515
- SHA512 568f38d46bc5fdbe02b9fb60ac2d5e96044330144813dc035e62c296f071043267b1ba75925bf7ba508bef537da8eea4a57b80c5ad203fedba56508b00808a31
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOOxrL:GhfxHNIreQm+HiTxrL
- MD5 SHA1 SHA512 SSDEEP