Analysis
- max time kernel
149s - max time network
55s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
12/06/2024, 22:45
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe
Resource
win7-20231129-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe
- Size 78KB
- Sample240612-2pv9vatdqa
- SHA256 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934
- MD5 02606f09b36de169d9f966a4b54f6602
- SHA1 4a693ce1925fdf98e7c9a3a753a287b0bbe50fdd
- SHA512 6f067b0f68113b6469c63942c91863433d8151bdaf67160fc2052f6f871471d35a69c251826baf66e812134c74bb253bd7ec247e15f88781fba0527c9ce21d3a
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO2K/f0A0K:GhfxHNIreQm+HiVK/f0A0K
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4592 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.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 - Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe File created C:\Windows\SysWOW64\¢«.exe 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe File created C:\Windows\system\rundll32.exe 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe - Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718232364" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718232364" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4592 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 4592 rundll32.exe 4592 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3784 wrote to memory of 4592 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 85 PID 3784 wrote to memory of 4592 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 85 PID 3784 wrote to memory of 4592 3784 857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.exe"C:\Users\Admin\AppData\Local\Temp\857c0011ea313659f91f5f2948ab99a7b418275febeda204079ccc702b4c3934.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:3784 -
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:4592
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 81KB
- SHA256 f58a34bf8a5949dc8d3f6608452ea7b6851a4f235d59aed6226f0701274c0e37
- MD5 be641422e6b94ced911355f04cca37ae
- SHA1 d254fbea1f8f0b8a54b73d7be933661171daf92e
- SHA512 c9490390ab5f10e2e59e9695712be03d40878eb94e00098abecabc1acd09bef146ad8f9d105181b53c8727337bc33cfb389bece1a136aca19b5fca0054985fab
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOevRXd+WnIhbNzpZcI2e:GhfxHNIreQm+HiJvRXd+WnIhbNzpZcIf
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 76KB
- SHA256 c70e7da7af5edaff442253d0c0f8d26dabe306847681e1d716119199ffd25ec5
- MD5 5b92e42c929360250dcd1c2c255226dc
- SHA1 e8f8226822d6d4ca3412dc450b52d9c02ea13265
- SHA512 799cbcef6376d28d703685f6f21a298735f6d3f2499384d6f611c23839024367b574067d3bf0b495fecb00e5edb2f754c927488d4684927833e29229134f7c9c
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOeCI:GhfxHNIreQm+HijCI
- MD5 SHA1 SHA512 SSDEEP