Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
24/08/2026, 23:36
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_d6dabe6f2a4b7f09bff219eb10932d47_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_d6dabe6f2a4b7f09bff219eb10932d47_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_d6dabe6f2a4b7f09bff219eb10932d47_cryptolocker_elex.exe
- Size 48KB
- Sample260824-3lrb6azzes
- SHA256 0c19a5300f34de18edd2185d9381f8cd5a78527ebde5364505742379bba27c38
- MD5 d6dabe6f2a4b7f09bff219eb10932d47
- SHA1 dcfca17b718800a35c7f47e536ac62e543e6f602
- SHA512 47d9262f9d59115fb72b247de0bec717915e7f851a2d159253515914fa9112dc79c438ae2143a869d5b809f036849a7cc4e2dc978d6e357c44fbdea5e5fbeef8
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqo:bgGYcA/53GAGgIvF7E3
- TLSH T1562322387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3780-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000019cd9-13.dat CryptoLocker_rule2 behavioral2/memory/2780-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2780-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2780 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 2026-08-24_d6dabe6f2a4b7f09bff219eb10932d47_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 3780 wrote to memory of 2780 3780 2026-08-24_d6dabe6f2a4b7f09bff219eb10932d47_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_d6dabe6f2a4b7f09bff219eb10932d47_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_d6dabe6f2a4b7f09bff219eb10932d47_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3780 -
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:2780
-
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 ac3af51aa22072af01459868f85264d8bd46a11b3358e2e75467067b19e7b5ce
- MD5 e87f355068b9cfd8b5d3b34898819e27
- SHA1 6bc19346902adc75bdd4b7669754d31d0ffa79ea
- SHA512 efb31733526e549ceebfa291859f8395d186ac9917b122c6d88e09d06ac7d0e92da70e1f641faaf258106e3439b03ac425e0f4e07d92b386bc802b120af659c2
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqe:bgGYcA/53GAGgIvF7EV
- TLSH T1892322387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH