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
19/08/2026, 23:26
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_027f9801805b8e7413ebb999a07ee09b_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_027f9801805b8e7413ebb999a07ee09b_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_027f9801805b8e7413ebb999a07ee09b_cryptolocker_elex.exe
- Size 65KB
- Sample260819-3e2vbawbkd
- SHA256 6f13deb2515beed041ca5d497cb966ff25d688b97a987f284b5cde77362ccf8b
- MD5 027f9801805b8e7413ebb999a07ee09b
- SHA1 8d122e5ee6b264fc78c6c5cf5be38e072e253ecd
- SHA512 d072f1e55c42d92cc083738607ef2894354f0e878895676e170a42a0a750eac66d4d7f4210f7e48e10db1ce15c58f1fc0cab6a9b761da6c53492a62345d3d9d7
- SSDEEP 768:bG74zYcgT/Ekd0ryfjSb8qD+7g3Zectbr5+IunYw16zle/:bG6YcA/X6Gw8qDxRWP6Jm
- TLSH T12063F83D7BC61672D3778AB196F791C3BA35B4323912884D54CE53480933F62EDA2A4D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4060-2-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e00000001c54a-13.dat CryptoLocker_rule2 behavioral2/memory/4476-18-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4476-20-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4476 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 2026-08-19_027f9801805b8e7413ebb999a07ee09b_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 4060 wrote to memory of 4476 4060 2026-08-19_027f9801805b8e7413ebb999a07ee09b_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_027f9801805b8e7413ebb999a07ee09b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_027f9801805b8e7413ebb999a07ee09b_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4060 -
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:4476
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 65KB
- SHA256 f1b0a4db8d413681f2fa33d6c0c35a9c577179c39bea90e9e91e410953b3fb5d
- MD5 bf763df4af7cd68b2721e5359dea39b3
- SHA1 c56d5f696bbda86e54ba711a478aed01841bea4c
- SHA512 3ad6f9941f47d47201eff09bd79162724e75c8e06c4f9cd460d56a144219b167cb27beab5d1e481edafa1ff46f9564690fc4670e892d5e88e40701a9944296d9
- SSDEEP 768:bG74zYcgT/Ekd0ryfjSb8qD+7g3Zectbr5+IunYw16zleM:bG6YcA/X6Gw8qDxRWP6JB
- TLSH T1D763F83D7BC61672D3778AB196F791C3BA35B4323912884D54CE53480933F62EDA2A4E
- MD5 SHA1 SHA512 SSDEEP TLSH