Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
05/09/2026, 00:45
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-09-04_aafe549c9c831ee6f2084476c2be0471_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-04_aafe549c9c831ee6f2084476c2be0471_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-09-04_aafe549c9c831ee6f2084476c2be0471_cryptolocker_elex.exe
- Size 77KB
- Sample260905-a4gapaz1gs
- SHA256 4cb0a2ff7f770916b4c55828e58fa120810664fc7914dda99b600e7608195b1f
- MD5 aafe549c9c831ee6f2084476c2be0471
- SHA1 9d3e5d8d99cf4bde9f6d11dfba5c066d64d9b64f
- SHA512 c462ec017e50e96648820d01568f07d9bc06fe65a135cfacaf361589d968d0266801b1befe98fb624116c96a42640c7063e50d8bf3f294d71aebd4e01493ebd9
- SSDEEP 1536:vj+jsMQMOtEvwDpj5HczerLO04BGc189Y0RxKFgzkiDq:vCjsIOtEvwDpj5HGWY0RkfV
- TLSH T16E73FE396FD91672E37BDAB5CAF691C6BA75B4223C12980D40CA43450C33F56EDA1E0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000023fe5-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000023fe5-12.dat CryptoLocker_set1 - 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-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation 2026-09-04_aafe549c9c831ee6f2084476c2be0471_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4944 misid.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 2026-09-04_aafe549c9c831ee6f2084476c2be0471_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3088 wrote to memory of 4944 3088 2026-09-04_aafe549c9c831ee6f2084476c2be0471_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-04_aafe549c9c831ee6f2084476c2be0471_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-04_aafe549c9c831ee6f2084476c2be0471_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3088 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4944
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 77KB
- SHA256 b7fa7d3484f628f26104f9b5973c97c0a57abb0afd53564fb3e2d0e8d53dcb88
- MD5 fdcbd32d08157f3d9f7ce0561651f429
- SHA1 9f51bb21fe8a60fb32f21db944ff682090310d2a
- SHA512 21fefe0eeefb33c6e503947f333ced56625adba68c6b358ca7b51e71c6a319e8c4c07b276f8813635869e7220384842bc4133151172c9afc3a8711c615f5504c
- SSDEEP 1536:vj+jsMQMOtEvwDpj5HczerLO04BGc189Y0RxKFgzkiDc:vCjsIOtEvwDpj5HGWY0RkfP
- TLSH T11573FE396FD91672E37BDAB5CAF691C6BA75B4223C12980D40CA43450C33F56EDA1E0E
- MD5 SHA1 SHA512 SSDEEP TLSH