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
14/08/2026, 04:16
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-14_66597702a0eb2cf46e1dda09c695b912_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-14_66597702a0eb2cf46e1dda09c695b912_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-14_66597702a0eb2cf46e1dda09c695b912_cryptolocker_elex.exe
- Size 46KB
- Sample260814-evtxmscn2t
- SHA256 27166103587aa7a1997bb526c2c007aeb4155afec31d4b199d659541728e559f
- MD5 66597702a0eb2cf46e1dda09c695b912
- SHA1 09b38f4b565b6c1a6992bcf936184e8dd7af836f
- SHA512 b30e5aad0752b04ecade30936675f17fe0c23fe3c60526545101bff98b4a56bf1ef7c387f0cf7a194cf2a5e1ab4134f8dc9c1fe8aca3779a6cc45f760e3e2922
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhu8M:bgGYcA/53GAGgIvF7Ek3
- TLSH T14F2321387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2020-9-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001300000001b1d0-13.dat CryptoLocker_rule2 behavioral2/memory/5360-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5360-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5360 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 2026-08-14_66597702a0eb2cf46e1dda09c695b912_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 2020 wrote to memory of 5360 2020 2026-08-14_66597702a0eb2cf46e1dda09c695b912_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-14_66597702a0eb2cf46e1dda09c695b912_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-14_66597702a0eb2cf46e1dda09c695b912_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2020 -
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:5360
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 6b075904512e85a1424e05e06fb2a7f3690bedb87bcece944db276007c589531
- MD5 39a9028efc22194fa56b5425887db4d2
- SHA1 481846ff68ba5f3f9c872e55a75a604b119b939f
- SHA512 ed36575aa72fa454c9cdb5b87f4d8bc91c740391b09f493d6fb3d1174a13abbde74d64070da7ee7e216770359d239a64893ae38c9d3f564ed942d09e906e72d1
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhu8z:bgGYcA/53GAGgIvF7EkQ
- TLSH T1142321387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH