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
05/08/2026, 09:06
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-05_9570715b9295081122c603c2927a9211_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-05_9570715b9295081122c603c2927a9211_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-05_9570715b9295081122c603c2927a9211_cryptolocker_elex.exe
- Size 45KB
- Sample260805-k2q28agg42
- SHA256 1a666130b54d0c8956f4ebdc2ad4004b9eb3be792945c6486453f503372be303
- MD5 9570715b9295081122c603c2927a9211
- SHA1 b52e419b10cbeb7fa96f7c2a0fc7c4ea91a3c3f4
- SHA512 9805c636d7404f898e2e714bba663c0a1a11f557a3f67450a42693b882339d83deae27bb8dc4dfaf0bde9ec61aef2c084c5fceb97276f623c6a456325a45102b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTv:bgGYcA/53GAGgIvFC
- TLSH T1CB2355387FE62972D37BDF7586F691C6B975B8223D16980D40CA43444833F66ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/6068-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c00000001b85a-13.dat CryptoLocker_rule2 behavioral2/memory/3292-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3292-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3292 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 2026-08-05_9570715b9295081122c603c2927a9211_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 6068 wrote to memory of 3292 6068 2026-08-05_9570715b9295081122c603c2927a9211_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-05_9570715b9295081122c603c2927a9211_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-05_9570715b9295081122c603c2927a9211_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6068 -
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:3292
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 46KB
- SHA256 7be720b6d09d20918e80ef999f709fd6ad3d610abd6d930537eeb8311c5e4667
- MD5 57cf9d110ea84fdd418cf7833491d5d8
- SHA1 6cb2d7984f07c0298ef9e3881e6a74bc77e24ebc
- SHA512 835abd4304fbdcd80e03caf19d1ba7a330c0ff09c3c30fad3ed4467e9adb4c92a75d1c0595a0c0f4a2a8db6e1212540caf49bab568d094de0ec34d089f3ba19d
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTk:bgGYcA/53GAGgIvFF
- TLSH T1982355387FE62972D37BDF7586F691C6B975B8223D16980D40CA43444833F66ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH