Analysis
- max time kernel
149s - max time network
102s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
02/06/2024, 22:33
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe
Resource
win7-20240508-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe
- Size 80KB
- Sample240602-2gk4xaae98
- SHA256 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b
- MD5 859b31f6d384b1df544578fdf492cc6a
- SHA1 34ed1e99ab2ee6c0461dd849b0e6261cf876fd3e
- SHA512 3a469ade59c6e3bb8d29e1ac93f446e8824cb71ff848dcebbc7c6d124d94ccb23b13990e434c88a1fc91ee76f4b69d431f1385fbd9c6372b6ea60cd40a9c751c
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO8uWU:GhfxHNIreQm+HiTuWU
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2304 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.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 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe File created C:\Windows\SysWOW64\¢«.exe 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe File created C:\Windows\system\rundll32.exe 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe - Modifies registry class 15 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717367597" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\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\" %*" 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.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.exe %1" 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717367597" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2304 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 2304 rundll32.exe 2304 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3272 wrote to memory of 2304 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 85 PID 3272 wrote to memory of 2304 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 85 PID 3272 wrote to memory of 2304 3272 3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.exe"C:\Users\Admin\AppData\Local\Temp\3f86e949adf0c121391c3144781b2b6199fe600087442b5eb6b5ed65b8a7fc2b.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:3272 -
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:2304
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 78KB
- SHA256 203a7feee182f3d3fe9006cf4708192e3a8a4a08880c898da1ee9f979c9308dc
- MD5 3ea20f0c0de590995759f76e03e3844c
- SHA1 5eb10db25632bf470f9856249b1478e01e735d82
- SHA512 71cb1f5fab3fd019ddf642a00ba0edd60dcfc13c83b5cc76dd9f555557ddf14b45e62bad16704414757b520a475b1ef84ad5591f1e4139f8a58aadfb78036dba
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOKZplXU:GhfxHNIreQm+HidZplXU
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 74KB
- SHA256 e5fe4a31270fbe9459aac913ab5dc572209d36e03af6e2b31a661a1e0a9bc596
- MD5 0b08e8bda4ef4cd4f4fafd404f31a104
- SHA1 b303fb70a827fe1212f246b6695ef5fbcdc64bec
- SHA512 b22a2221c1f8367aeec55f53082a1a3f5a5b0ae6c567eee7e464e99a09ba54f4eaba48e6733a4b2288e4dc5322df365758aed602958725541ee834786c892c0c
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOC:RshfSWHHNvoLqNwDDGw02eQmh0HjWOC
- MD5 SHA1 SHA512 SSDEEP