Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
17/07/2026, 14:50
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe
- Size 4.6MB
- Sample260717-r7k7gshv21
- SHA256 fde3ac65cd5584208498e3208b47cacf44e852571f47c5a346e0a34980a59d24
- MD5 d01a176b19b105ee8eeb97d89082e927
- SHA1 15289e5ac3f76bb859375775499b54dceec5dfe2
- SHA512 979db524a1a4bd4d5c906f4d39b50d089dce4097e34621c27f831818ec217f7dc0c8a1a4b346d4a3e3f2e0996ccf4c2c31eb07f6c9559f2bd9b10d94b1b98e16
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTw:w/ZFIjBzF/ZFIjBzPEUusw
- TLSH T1C1363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/4728-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0007000000009dbf-13.dat CryptoLocker_rule2 behavioral1/memory/1056-17-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1056-25-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral1/files/0x0007000000009dbf-13.dat INDICATOR_EXE_Packed_MPress - 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-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation 2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 1056 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 2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4728 wrote to memory of 1056 4728 2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-17_d01a176b19b105ee8eeb97d89082e927_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4728 -
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:1056
-
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 dba065131867aaa5fe9f255d8e96e11424bd436f488cda16fb2c433ad188c390
- MD5 8cde20c467e194a8eaf7f5fa9867c1a4
- SHA1 ab43ed5a8fbd91243bab95a20079ab7740d2ca2c
- SHA512 4b1cecdc89ea3e44244afbda2daf58c764be3faa0dd2907d9ee16cee1b8dc6360e8fc83700359994037f71dd01ed8223e577f62f5a7b4eeb0d569a8b9dba996e
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTh:w/ZFIjBzF/ZFIjBzPEUush
- TLSH T1FB363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH