Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 18:56
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_9ddae76ac3ef36c7765df8e65d32dbfd_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_9ddae76ac3ef36c7765df8e65d32dbfd_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_9ddae76ac3ef36c7765df8e65d32dbfd_cryptolocker_elex.exe
- Size 25KB
- Sample260820-xlh3wstemf
- SHA256 2ed3dc1422bba06bade58080c879feaf57bdaf6c5af1e893f13d39337fbd25e6
- MD5 9ddae76ac3ef36c7765df8e65d32dbfd
- SHA1 f2de477552530cd13857ef7740d850c9f25cb859
- SHA512 882aee566350329aa81d6a7a0d6e11b8c786cd0784ff982ceb9b5de73fad557319174fad78fc9f4bdd89419ee72a9114b6a732b8693f929a24bf6627dfcb96f0
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUaBlwN:bA74zYcgT/Ekd0ryfjVI
- TLSH T1C1C24B2677677CA2D0695EB025FBA011797FBD513B38498FBCCF73ACDAB12916402086
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3640-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000f000000016cb6-13.dat CryptoLocker_rule2 behavioral2/memory/2236-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2236-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2236 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-20_9ddae76ac3ef36c7765df8e65d32dbfd_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3640 wrote to memory of 2236 3640 2026-08-20_9ddae76ac3ef36c7765df8e65d32dbfd_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_9ddae76ac3ef36c7765df8e65d32dbfd_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_9ddae76ac3ef36c7765df8e65d32dbfd_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3640 -
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:2236
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 25KB
- SHA256 c0bb6765617b554f505dbef06f33f617efb3d43ced0df7e4d14c211fe269066c
- MD5 a02e8696d2b15641debfa06f64ee65fe
- SHA1 d72b7ad1c03d1dde799b05c35fa627d698243c8b
- SHA512 d5475b18449041e6be4288aae51e72cf3c2395868aa144930d74f428f1b3caf259e82d6fbe2a72c83ba632cf717fb2158e0072c883f39e2ee8729ca22a41a6f2
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUaBlwR:bA74zYcgT/Ekd0ryfjVc
- TLSH T181C24A3677677CA2D0696EB025FBA011797FBD513B38498FACCF73ACDA712916402086
- MD5 SHA1 SHA512 SSDEEP TLSH