Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/07/2026, 00:45
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-27_9676327ca9afa4c11956a1b323f1e71f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-27_9676327ca9afa4c11956a1b323f1e71f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-27_9676327ca9afa4c11956a1b323f1e71f_cryptolocker_elex.exe
- Size 45KB
- Sample260727-a4cbqsfl8z
- SHA256 a8f634616f173dee65f64dbc5a45a2bd9c83d82c611e362f9580c4258e0d239d
- MD5 9676327ca9afa4c11956a1b323f1e71f
- SHA1 8531fa2414b064964ef8254f344799c270cbca7e
- SHA512 ad58242b1fee9d0ba84c0e616ef313d0e1b8c4a6df9b3b015d77c797df3cb66a99fb5bc3c16a521139c8051311ad2aaeb27b8a1fd524cedba2bb576ead6a531b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCT+:bgGYcA/53GAGgIvFT
- TLSH T15B2365387FE62972D37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2748-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0013000000016db3-13.dat CryptoLocker_rule2 behavioral2/memory/4520-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4520-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4520 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 2026-07-27_9676327ca9afa4c11956a1b323f1e71f_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 2748 wrote to memory of 4520 2748 2026-07-27_9676327ca9afa4c11956a1b323f1e71f_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-27_9676327ca9afa4c11956a1b323f1e71f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-27_9676327ca9afa4c11956a1b323f1e71f_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748 -
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:4520
-
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 50a1c16d5464528b89cbe0bbf4d5efd459d75f8422631f6000fdd7c2525bd6a6
- MD5 d898eebbd60bd4c35f5f22e54f691900
- SHA1 332b23dbaf950f795f71273ea380ab880a877ac4
- SHA512 bb3382f1a98d4ad03c18a1c67404eaa7af5a49d78851f7b05004384e8163db92558cb8fbc86f65a0de4cc3719d46e6b4b537f7b12910ea31a8eb7867f52d8f24
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCT+:bgGYcA/53GAGgIvFb
- TLSH T1CD2365387FE62972D37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH