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
23/08/2026, 22:22
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-23_c247e8ec28090513d8cb219fe20d31b3_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-23_c247e8ec28090513d8cb219fe20d31b3_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-23_c247e8ec28090513d8cb219fe20d31b3_cryptolocker_elex.exe
- Size 47KB
- Sample260823-2alf4awsax
- SHA256 db0f1ba905552726c9269c6ceb521c8ef5936934835bfdbb02d8584a93f6543e
- MD5 c247e8ec28090513d8cb219fe20d31b3
- SHA1 94fd02db62a7ad2daddf195d61dd5f00f8320b67
- SHA512 acc76a655af36386208bac97eaddaee111af773bbe2dd57823d98195523260105d11715c491c76b556dbb93e01f9d3bf319834209764113162cd43c49b390c11
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIKYCj:bgGYcA/53GAGgIvF9v2ZZCj
- TLSH T1172355387FE66972E37BCFB586F691C6B93578223D16980D40CA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4260-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000800000001b858-13.dat CryptoLocker_rule2 behavioral2/memory/3936-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3936-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3936 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 2026-08-23_c247e8ec28090513d8cb219fe20d31b3_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 4260 wrote to memory of 3936 4260 2026-08-23_c247e8ec28090513d8cb219fe20d31b3_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-23_c247e8ec28090513d8cb219fe20d31b3_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-23_c247e8ec28090513d8cb219fe20d31b3_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4260 -
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:3936
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 48KB
- SHA256 99db70aa685e1c9363c88c86fa8ab822c717a245d2432a0b8a9a55bc0e5d4922
- MD5 c4ddb1413fba8210c5b3f22083a22dea
- SHA1 58b6a7ddeea789b6e078b97e365dd65577904445
- SHA512 58fdf2e25e57673f8e708a2e8f64c1fe6f0b9d47fd85c60c164dace1c196a522846c720fb8568bf76221a830abbaa19436964383f9fc4069276e5a2d400da42f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIKYCU:bgGYcA/53GAGgIvF9v2ZZCU
- TLSH T1AC2345387FE66972E37BCFB586F651C6B93578223D16980D40CA43844833F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH