Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/08/2026, 11:16
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_8671729115c9af97329298ea422658a9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_8671729115c9af97329298ea422658a9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_8671729115c9af97329298ea422658a9_cryptolocker_elex.exe
- Size 30KB
- Sample260822-ndmlnseh34
- SHA256 b993be13c1be6c53eecbbf7867c9c0b1f0c9e18eeb442cc488b5be8d8282e750
- MD5 8671729115c9af97329298ea422658a9
- SHA1 b9624a25238c42c13dc872deba888852d1851f91
- SHA512 9a0dc0846f47cd357a17466cff5a9ca4dc6abcffac027723b711f9ed620707c79185a22668e47b7dc3ff7361fd638d457b12bea9a0bf20ce4e03d5130042ec99
- SSDEEP 384:b674uGLLQRcsdeQ72ngEr4K7YmE8j60payjfjDnHMmHBda2D:b674zYcgT/Ekd0cqfjzsmHBdzD
- TLSH T183D2E9347BE72C71E37B9E7056F79082B97AB8223E25484E58CE73488D33792AC4154E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x00160000000118ee-13.dat CryptoLocker_rule2 behavioral2/memory/6960-17-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1320 hasfj.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 2026-08-21_8671729115c9af97329298ea422658a9_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 6960 wrote to memory of 1320 6960 2026-08-21_8671729115c9af97329298ea422658a9_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_8671729115c9af97329298ea422658a9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_8671729115c9af97329298ea422658a9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6960 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1320
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 30KB
- SHA256 9debac5c54a1565fc550dd883a37aaef19dd323320b48b1bfae6fd0f13211fc6
- MD5 3dfdb7a4449e85ff4866155fb6706450
- SHA1 206c7b7b90e7e41df42fe7101ceb95676d7453a3
- SHA512 bddc2d94c07628bc12057ba51306350b2944316ce3e81f499d56e6b8c90ffff38f5db56fcf48578c8b737aec965e65d6f715c874f718050a9f4e5fa2547597a5
- SSDEEP 384:b674uGLLQRcsdeQ72ngEr4K7YmE8j60payjfjDnHMmHBda2A:b674zYcgT/Ekd0cqfjzsmHBdzA
- TLSH T18AE2E9347BE72C71E37B9E7056F79082B97AB8223E25484E58CE73488D33752AC4154E
- MD5 SHA1 SHA512 SSDEEP TLSH