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
07/08/2026, 10:09
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-07_6c6a391c58c61f22a1c2c091b3e1b80a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-07_6c6a391c58c61f22a1c2c091b3e1b80a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-07_6c6a391c58c61f22a1c2c091b3e1b80a_cryptolocker_elex.exe
- Size 47KB
- Sample260807-l6x7rssene
- SHA256 7667cc8673b6ba619b1cf291a8a436417ad2ee2fb49074e67ed8606a169ea1e2
- MD5 6c6a391c58c61f22a1c2c091b3e1b80a
- SHA1 77b99a914da7b774c874a8c9e804e119d6e18237
- SHA512 9929fdb444477f65243f29f8cc3fe977fd505a8cc0bd872c3437a890425fcd5870baaee8ae1079376b20825e7512800c83aadab240c98d63010d6578c25aab9e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqT:bgGYcA/53GAGgIvF7EE
- TLSH T1972322387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2132-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000016cdc-13.dat CryptoLocker_rule2 behavioral2/memory/2200-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2200-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2200 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 2026-08-07_6c6a391c58c61f22a1c2c091b3e1b80a_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2132 wrote to memory of 2200 2132 2026-08-07_6c6a391c58c61f22a1c2c091b3e1b80a_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-07_6c6a391c58c61f22a1c2c091b3e1b80a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-07_6c6a391c58c61f22a1c2c091b3e1b80a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132 -
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:2200
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 48KB
- SHA256 819c8aea2a6878a9414f20540262ffae4d799478d7509efc95d4fd5ffbcecee0
- MD5 691e76b262e09f77180efc2e06ba0e32
- SHA1 e152c357566122c82363ea717f81e7ee78e21fb6
- SHA512 da9a737cd82392f4831051c6e6ecfe0a3e9cdb035ef341267c1eef172b139967a690e8d994947ee5562e8488354ba5f544c5d14d1a5b4f59466826b58edc86e3
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqV:bgGYcA/53GAGgIvF7Em
- TLSH T15D2321387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH