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
21/08/2026, 03:46
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_ec418b6ea80340f02feeda12d8dd15c4_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_ec418b6ea80340f02feeda12d8dd15c4_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_ec418b6ea80340f02feeda12d8dd15c4_cryptolocker_elex.exe
- Size 28KB
- Sample260821-ebsv8swvbs
- SHA256 61129fbf85ed581db1595c838c1571e3a536d9dbb1e39d41bdf263385eb09846
- MD5 ec418b6ea80340f02feeda12d8dd15c4
- SHA1 19fd7a8c7b683bc4d2725b53d7d6ff46861df05c
- SHA512 04c562842e2ff2a1f3f2b666abecc97c5b096ce0e5122cea877154c347cedf0961718900cc528352eee9bc96d92590ce6be164a2dc5f96619197362236a59299
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/3yelk8nE5q:bA74zYcgT/Ekd0ryfjLz/Nlk8E5q
- TLSH T1DCD21B387BD73D72D1779EB455F7A182B93ABC223A354C4E68CF3388C932651A84254A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/6012-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000019cd9-13.dat CryptoLocker_rule2 behavioral2/memory/4100-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4100-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4100 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_ec418b6ea80340f02feeda12d8dd15c4_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 6012 wrote to memory of 4100 6012 2026-08-21_ec418b6ea80340f02feeda12d8dd15c4_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_ec418b6ea80340f02feeda12d8dd15c4_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_ec418b6ea80340f02feeda12d8dd15c4_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6012 -
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:4100
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 29KB
- SHA256 5c0957fa0e33b3bccdb1b1e3f3239a3329ed79822611665eaaf44d225b251925
- MD5 06d227552569c31adf66c306fc30c6bf
- SHA1 906e294ac22b725757085e7abdedbaa1c394e9a1
- SHA512 9512db72e1e9f6bc1099128ea8c25228aad24318a5dfefbb221995ca630429f2a7fa3c13a297c539e2a27056d1d0d4892f287d7c378e29610bc162f49fa36de8
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/3yelk8nE5O:bA74zYcgT/Ekd0ryfjLz/Nlk8E5O
- TLSH T140D22A387BD73D72D1779EB455F7A182B93A7C223A244C4E68CF3388C932751A84254E
- MD5 SHA1 SHA512 SSDEEP TLSH