Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
20/08/2026, 00:09
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_89d99defc8788eb77fb7ef95b870a9f7_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_89d99defc8788eb77fb7ef95b870a9f7_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_89d99defc8788eb77fb7ef95b870a9f7_cryptolocker_elex.exe
- Size 36KB
- Sample260820-afe3qaad47
- SHA256 dd7745ffc64e96aae340bbd0ee2357bb6ed75ec7d45b6bb0b4c9619251f8ce6c
- MD5 89d99defc8788eb77fb7ef95b870a9f7
- SHA1 1c60f2fdf62915bc4ef0994e33319576688b3e65
- SHA512 116c0e9ca386ca001ece2a0592247796af0e8a388d965e3a7a5ce435f66882680f5feca66527ed363897295b1d1870675ffd2aefe07735500bf2ee37cc310c54
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGOFh4j4:bG74zYcgT/Ekd0ryfjZ4c
- TLSH T147F2E435F7EA3826DE3BAEF491F650B1AB3F78187C1078CE04ABE74C4872651995C40A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/4916-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4916-3-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000800000002433c-14.dat CryptoLocker_rule2 behavioral1/memory/1208-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1208-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - 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 2026-08-19_89d99defc8788eb77fb7ef95b870a9f7_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 1208 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 2026-08-19_89d99defc8788eb77fb7ef95b870a9f7_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 4916 wrote to memory of 1208 4916 2026-08-19_89d99defc8788eb77fb7ef95b870a9f7_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_89d99defc8788eb77fb7ef95b870a9f7_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_89d99defc8788eb77fb7ef95b870a9f7_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4916 -
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:1208
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 36KB
- SHA256 03bfb880b81c6943b2a0434d57fdc561c170b3f990eb199d7cab3881b5c598ef
- MD5 810021bdd50c3aba9f97610dca05e1b8
- SHA1 6c1a39bb6c08fdc3eca2b46219f5f1dc49c95741
- SHA512 021abaee365038acbc1ca236872ef28de6e46fc25defec9103a4aed5212111431be61c1d579923b1985af85a2303a63663a133254320f26ce3aeaecda29821a0
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGOFh4jT:bG74zYcgT/Ekd0ryfjZ43
- TLSH T136F2E435F7EA3826DE3BAEF491F650B1AB3F78183C1078CE04ABE74C4872651995C40A
- MD5 SHA1 SHA512 SSDEEP TLSH