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
02/08/2026, 00:11
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_9c1e08701183ae689db5f2f6c436fbb0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_9c1e08701183ae689db5f2f6c436fbb0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_9c1e08701183ae689db5f2f6c436fbb0_cryptolocker_elex.exe
- Size 46KB
- Sample260802-agsefaak8z
- SHA256 0e42427c3df5c4c203f193c0f6cb909f9340f042440424c72aec9481da4f8377
- MD5 9c1e08701183ae689db5f2f6c436fbb0
- SHA1 429fec4c6975e7b06b4ee1e1246aebc406c6e6e8
- SHA512 b759b17fcef35f71b4364ebea9561801bf8e3ecc57b04098be46db77a5e3ed430be7a5d8c0ca7d1b8d2def079df97d212ce49f6e617e05c8a1b12447d9bc1af4
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcX6kYl:bgGYcA/53GAGgIvFwl
- TLSH T1B52344387FE62972D37BDFB586F691C6B93578223D16980D40CA43844833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/920-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c00000001b8ae-13.dat CryptoLocker_rule2 behavioral2/memory/2404-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2404-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2404 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 2026-08-01_9c1e08701183ae689db5f2f6c436fbb0_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 920 wrote to memory of 2404 920 2026-08-01_9c1e08701183ae689db5f2f6c436fbb0_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_9c1e08701183ae689db5f2f6c436fbb0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_9c1e08701183ae689db5f2f6c436fbb0_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:920 -
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:2404
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 f373712b6acfa598c682c145b1cdd2f24190612b22b58f902fbd444a7c6dc0da
- MD5 18e7bc7c017006d62af2e873b4be4f1a
- SHA1 abe452c9e885fce0ce948d5ebd30676b3dcba94a
- SHA512 14aa8d588cded487d77f7fba11ef17cfb2a16fd4591bc5e98409503c7d2a04cb25361ab5d3955e32fcb488377b79f2f625344a92a6f6ec2f7ddb90589db156a1
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcX6kYU:bgGYcA/53GAGgIvFwU
- TLSH T1492344387FE62972D37BDFB586F691C6B93578223D16980D40CA43844833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH