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, 21:34
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_e82eeb2b65e557cb286081bc686dbade_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_e82eeb2b65e557cb286081bc686dbade_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_e82eeb2b65e557cb286081bc686dbade_cryptolocker_elex.exe
- Size 46KB
- Sample260824-1e17nsfb82
- SHA256 bb32d91ac4f07c0efafb66e18b1c0e1e4e516051c9907d27b0bf622855b31b59
- MD5 e82eeb2b65e557cb286081bc686dbade
- SHA1 ce8c31b9fd5871712acd04fa6f557c89fe10db5e
- SHA512 9027aa21a9888b6e59665fab1441993a77aa4cb318afc26c2babf4d22ac9cd30add85fb6747af0988ba1347f8120ed8371bf9c959cf7025eab93ccb8cd054479
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhK:bgGYcA/53GAGgIvF7E4
- TLSH T16C2322387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2776-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/5640-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5640-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5640 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_e82eeb2b65e557cb286081bc686dbade_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 2776 wrote to memory of 5640 2776 2026-08-24_e82eeb2b65e557cb286081bc686dbade_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_e82eeb2b65e557cb286081bc686dbade_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_e82eeb2b65e557cb286081bc686dbade_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776 -
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:5640
-
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 76440dfd0ce8942c245a87101b9777c61096d8ab5592dc1a63c6d7c3f2b256ff
- MD5 010a014ccf155b0a4b50c49d6f5a2404
- SHA1 c49a4ac78fcc961b3260b97353eab88dd633e825
- SHA512 a9d0d2d14b4f2b3ba21a6e99befc249f7ae976f64dda4005c0f70782e539a43700a8b199d3735f600f88f27c54dae40af42a56c913e62a4191f0f5497a320e0e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhF:bgGYcA/53GAGgIvF7ED
- TLSH T1A92332387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH