Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/08/2026, 03:16
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-05_22d09f5a799ddb24f4fe66c57833c6c6_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-05_22d09f5a799ddb24f4fe66c57833c6c6_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-05_22d09f5a799ddb24f4fe66c57833c6c6_cryptolocker_elex.exe
- Size 45KB
- Sample260805-dssq5axbrd
- SHA256 4b833e5815f02b6d7dd5aff16d7eba94b6239e077227d1161cc1624d0c4cb151
- MD5 22d09f5a799ddb24f4fe66c57833c6c6
- SHA1 88de65c26a13e6646a805ab3a14aea2a4dbec101
- SHA512 586cb427160760ea03e7d3a77ab01bfb781c372cbed229ed52347bf3b31f1228ac706987691889d8af14659396461f9d334cff13f6d855a291f866623651d870
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCT9:bgGYcA/53GAGgIvFs
- TLSH T1A72355387FE62972D37BDFB586F691C2B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2952-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001b315-13.dat CryptoLocker_rule2 behavioral2/memory/2596-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2596-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2596 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 2026-08-05_22d09f5a799ddb24f4fe66c57833c6c6_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2952 wrote to memory of 2596 2952 2026-08-05_22d09f5a799ddb24f4fe66c57833c6c6_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-05_22d09f5a799ddb24f4fe66c57833c6c6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-05_22d09f5a799ddb24f4fe66c57833c6c6_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2952 -
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:2596
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 45KB
- SHA256 20c7da6b7305419c2d0c79f90e6fa8271b9e11115b8ba2844e348c3da00ca245
- MD5 d4430f4a953fa8a81091822eb1872c8b
- SHA1 d4cb2af58b2aa30f75c980bf862a49241c5d2c55
- SHA512 f2a704973ba98e6f7b31dbbb3e4ea44b37bcf125d9a5fb25d2c0db8cd3eaafa0303cc0b99b1127e276369bea3d272d7f0ffe70f83caa55c8a8c2a930fee5204d
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTC:bgGYcA/53GAGgIvFf
- TLSH T1442355387FE62972D37BDFB586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH