Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
10/10/2024, 05:15
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe
Resource
win7-20240708-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe
Resource
win10v2004-20241007-en
5 signatures
150 seconds
General
- Target 2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe
- Size 78KB
- Sample241010-fx1cwaybjd
- SHA256 4329dcae77f41cc201cf575768e1e398e2f33c2dd68f971f5b16ceb8cc8684f5
- MD5 a7c71bd97020a393f7cf0a08c8ab402d
- SHA1 2d0ac847684a8b137de1cf6516c120851b22d44f
- SHA512 3af970ce21a554223e61ae1448cf7f62d158a2363bc33e06e8e25e8a56ea9034684311b7b3e06122c8a8468a2226be31aa16e1930a2b893d50737d5b27c20c4f
- SSDEEP 1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siXt:X6a+SOtEvwDpjBZYvQd23
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 2164 asih.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3936 wrote to memory of 2164 3936 2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe 85 PID 3936 wrote to memory of 2164 3936 2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe 85 PID 3936 wrote to memory of 2164 3936 2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-10_a7c71bd97020a393f7cf0a08c8ab402d_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3936 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2164
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\asih.exe
- Size 78KB
- SHA256 f53ccce910012ac2fcc84ba49e560fe8d1cb6446866761ea3dc12bd60aa05422
- MD5 122a55e589ba20c197e31221e33e5c8e
- SHA1 a04cb236b68a3237ec1b2d8b952c51b40f66a0fc
- SHA512 13d44f7591841ed9e036b0d733c27a8395b18b2706364846d2a23f7abb133f7632d59139344005d864da0e3019ebf06c16dee329cc963658996faa304e4fa920
- SSDEEP 1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siXw:X6a+SOtEvwDpjBZYvQd2G
- MD5 SHA1 SHA512 SSDEEP