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
09/08/2026, 00:01
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_ec1c54cfef2e9f995afd49dd3333f5b5_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_ec1c54cfef2e9f995afd49dd3333f5b5_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-08_ec1c54cfef2e9f995afd49dd3333f5b5_cryptolocker_elex.exe
- Size 52KB
- Sample260809-abeamawgmg
- SHA256 77f0a1f4afdcf15ac21744497a6e4b061f70fe6ff8da440d9fe2ef14f623fcd3
- MD5 ec1c54cfef2e9f995afd49dd3333f5b5
- SHA1 83935a2ed67623e08715d24aec7ce3204719ae1a
- SHA512 9bddb1868bcc7f10c21fb038847ce4412ac8a777eb54994c6824bd598fc69b4a77dd829b67bc05f425d38ca9ea42996e0b4891aead29688c9e7e5ff6dd0f5e71
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1ycm:bgGYcA/53GAGgIvFW178
- TLSH T1AE3311387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1212-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001200000001157e-12.dat CryptoLocker_rule2 behavioral2/memory/3980-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3980-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3980 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 2026-08-08_ec1c54cfef2e9f995afd49dd3333f5b5_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 1212 wrote to memory of 3980 1212 2026-08-08_ec1c54cfef2e9f995afd49dd3333f5b5_cryptolocker_elex.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_ec1c54cfef2e9f995afd49dd3333f5b5_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_ec1c54cfef2e9f995afd49dd3333f5b5_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1212 -
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:3980
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 52KB
- SHA256 cfa68c7a969d3f1da41454ef3bd98c9a6b1ce66de8d26bb3aaddfeeed2fcac16
- MD5 83d97de7c47a965a812efc844c907e23
- SHA1 877a00852d89b4692151e932cc9e42b09ea6c729
- SHA512 67babcb6b4a0532c768e593878f38a88bfadf6855d454bd82e3584383029a3a2551014d2fb8b50ab747e580acfab231ba9e4c0068327b30b09cfae991df218fc
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1yc6:bgGYcA/53GAGgIvFW17I
- TLSH T1613311387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH