Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
06/09/2026, 18:39
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-06_c2b7a66697ca345d39cebe73f39b52c2_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-06_c2b7a66697ca345d39cebe73f39b52c2_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-06_c2b7a66697ca345d39cebe73f39b52c2_cryptolocker_elex.exe
- Size 41KB
- Sample260906-xama6sysdv
- SHA256 bf3995caaa8b88d35aa5500cd6fdd51b57bf2d7d3f8d4d65f90529863893e247
- MD5 c2b7a66697ca345d39cebe73f39b52c2
- SHA1 33aeeea8949368e642a915e239343d2c5f954ee2
- SHA512 c814813458b53634b3010404bf472723c0bc383d2feb9204716cd4d0fb5316cf556b4c89e391ca0b562f96f4b57dcfe1e8036d90c42440871c8fe0aa08d319f1
- SSDEEP 768:bA74zYcgT/Ekd0ryfjLzViYmGl3J2dBqW3x6:bA6YcA/X6G/zVinyUug6
- TLSH T1EF133D3C6AD62972D3BBDAB585F751C2BD35B8233A158C0E54CB13844C23F66BC9261E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1096-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/3524-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3524-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3524 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 2026-09-06_c2b7a66697ca345d39cebe73f39b52c2_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 1096 wrote to memory of 3524 1096 2026-09-06_c2b7a66697ca345d39cebe73f39b52c2_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-06_c2b7a66697ca345d39cebe73f39b52c2_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-06_c2b7a66697ca345d39cebe73f39b52c2_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1096 -
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:3524
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 fd7fc412c0cb2fdf83b929c6a3eeab19fffe62462d22f6b6cc661631217d23f8
- MD5 e8d7a907e697d7c6d3b0d60e9b6cc262
- SHA1 e49bfe477c6f1a79c2ff3248c92425cd7383679e
- SHA512 a92aa80881d3d82bf28fe1cc08d78914fa999348def388a6651c389472fb9316d52e3e7154504483841142012947c2450ddeaab01648c899e094d2e1253ea543
- SSDEEP 768:bA74zYcgT/Ekd0ryfjLzViYmGl3J2dBqW3xF:bA6YcA/X6G/zVinyUugF
- TLSH T197133D3C6AD62972D3BBDAB585F751C2BD75B8233A158C0E54CB13844C23F62BC9261E
- MD5 SHA1 SHA512 SSDEEP TLSH