Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 00:20
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_271de61cb8ecc34545af9c887f2e7753_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_271de61cb8ecc34545af9c887f2e7753_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-08_271de61cb8ecc34545af9c887f2e7753_cryptolocker_elex.exe
- Size 42KB
- Sample260809-am6h9axbnf
- SHA256 e15eb86e81c0a9287b590c6e99c5eecda2c7c4fe01a1abba1b751786dfee9b14
- MD5 271de61cb8ecc34545af9c887f2e7753
- SHA1 5d0dc097ef6f764c4685e206e6b5c85a5cd7351d
- SHA512 b9d1ca3b64fc5e549a1523b9cd66b6b3f0cdd242ce226791d92e2bacc3b77c735bc022c1b78d284494a3ea67c74449e0310c8d9685b571055a34945816eacb2c
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCb:bgGYcA/53GAGgIvFa
- TLSH T1E51374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F66DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4116-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001100000001122a-13.dat CryptoLocker_rule2 behavioral2/memory/1792-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1792-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1792 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_271de61cb8ecc34545af9c887f2e7753_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 4116 wrote to memory of 1792 4116 2026-08-08_271de61cb8ecc34545af9c887f2e7753_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_271de61cb8ecc34545af9c887f2e7753_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_271de61cb8ecc34545af9c887f2e7753_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4116 -
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:1792
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 831d22af465406d6165994c1b5d3f2ccd70eea3e094c91299f75aaffcd88e9dc
- MD5 7f15cd78bff710e2e80d42c8a581e314
- SHA1 ff2591cb18c38532ef02434266f738701ea51be7
- SHA512 916362e003efe05baa8246e02aa10ed67de1db06517b2a77738f66b76b32089c48da98e06ca91d530ada52fbb2118b10c13794aeaf5f28e0e92056e26357795b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCr:bgGYcA/53GAGgIvFC
- TLSH T1731374387FE62972E37BDFB586F691C27975B8223D16980D40CA53844833F66DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH