Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 04:05
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_a3386394ec4171132579c173a2009e26_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_a3386394ec4171132579c173a2009e26_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_a3386394ec4171132579c173a2009e26_cryptolocker_elex.exe
- Size 36KB
- Sample260809-enhk2attgs
- SHA256 88345c17d6e12127d1fd8874108c9a5447cad4316adf98aa6e2660385c29f3fb
- MD5 a3386394ec4171132579c173a2009e26
- SHA1 cb7e0d6c67313a9ddd0954582191361ec36d1c3c
- SHA512 905c0589784a55843e402ed2c1c252dd0fa9f0cf8cd26adf9440bd881fcb081265ef9d44eba7cdb1726eff7aa6675a2e9ad7d2fc9488074859810160c043e28e
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuaBflNGesjF:bG74zYcgT/Ekd0ryfjWlNGvF
- TLSH T143F2D435FBEA3822DA3BAEF491F640F1BB3F7819791078CE049BE34D4872611995D509
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/1392-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1392-10-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000019ce0-14.dat CryptoLocker_rule2 behavioral2/memory/5064-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5064-21-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5064 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 2026-08-09_a3386394ec4171132579c173a2009e26_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 1392 wrote to memory of 5064 1392 2026-08-09_a3386394ec4171132579c173a2009e26_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_a3386394ec4171132579c173a2009e26_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_a3386394ec4171132579c173a2009e26_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392 -
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:5064
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 36KB
- SHA256 589647b248ae607cb89a846c6b70f62123cc6bfab3adc9e4ca76cf8e07122588
- MD5 df4a633e485476688dd450737770d7e8
- SHA1 41943c67d05e263633aae8442af556d70e33a447
- SHA512 a03060f70c300f4ce70a7572d0f67a2c16c981c8dc8a38e82a795980fdf8cad9ea784af93e2da13bc4a96b5dc19ea9c80c67c2f052940918d7e9e69b8d8b9f8c
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuaBflNGesj8:bG74zYcgT/Ekd0ryfjWlNGv8
- TLSH T1BB03D535FBEA3822DA3BAEF491F640F1BB3F7819791078CE049BE34D4872A11995D509
- MD5 SHA1 SHA512 SSDEEP TLSH