Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260618-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/06/2026, 03:58
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-06-27_ad715edfb3673ae1f4dc69368683c151_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-06-27_ad715edfb3673ae1f4dc69368683c151_cryptolocker_elex.exe
Resource
win11ltsc2024-20260618-en
6 signatures
150 seconds
General
- Target 2026-06-27_ad715edfb3673ae1f4dc69368683c151_cryptolocker_elex.exe
- Size 4.6MB
- Sample260629-ejjmjacw8x
- SHA256 c13f12acf0a5051c7c014d841f1b444347e438ea0128e8ccc9c9e44856d4bcba
- MD5 ad715edfb3673ae1f4dc69368683c151
- SHA1 6aa78132c5cf360e10417f9c93bbc3f3804a976d
- SHA512 9d9dca569cfad3fd33ed4cb7189731cebc4bef78aa1a1564eaed45815d2c82b66a0e7da6f9e0b445fe86e86876c8d60432cd868365a5c8ada3d3b85ed46f3804
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTz:w/ZFIjBzF/ZFIjBzPEUusz
- TLSH T197263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3572-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001700000001159e-13.dat CryptoLocker_rule2 behavioral2/memory/2448-19-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2448-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x001700000001159e-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 2448 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 2026-06-27_ad715edfb3673ae1f4dc69368683c151_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 3572 wrote to memory of 2448 3572 2026-06-27_ad715edfb3673ae1f4dc69368683c151_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-27_ad715edfb3673ae1f4dc69368683c151_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-27_ad715edfb3673ae1f4dc69368683c151_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3572 -
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:2448
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 7698a85bc907e27a724bdb5c88dc6877b72950962cc2573e6aff8fea3605c561
- MD5 828ed770822587ef93f583e9575312ef
- SHA1 2d7e9da1963e650be14755686f3e4b13a5c04368
- SHA512 e7bd2d04380237d19bc17000523769dd76fa94e623f96230deafd2fde8b969ec76c7d73b9745805b7b5295e325c4241f77f73b68fc7c85ca6cf390ef98fba0b8
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTD:w/ZFIjBzF/ZFIjBzPEUusD
- TLSH T187263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH