Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/08/2026, 18:45
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_135af3e4b9d5a8dfbd10496ce43bb8c9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_135af3e4b9d5a8dfbd10496ce43bb8c9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_135af3e4b9d5a8dfbd10496ce43bb8c9_cryptolocker_elex.exe
- Size 49KB
- Sample260825-xekcdaxfre
- SHA256 893f5b06236cad4796498a4faf31b1f4c798c412c7379c45d0b380a4628fb4b6
- MD5 135af3e4b9d5a8dfbd10496ce43bb8c9
- SHA1 5e9ebc2728ef23c10bf719ca6ff29e2c65ad9c1e
- SHA512 5bf1ee7bf2075ab3083e84334f509771805d911c216118d86aaa72be17014e4ba1e82abe75ff6ae5e81f1d02f253cae1345aa01425c78c868bbbc7cc6e36f188
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXZwl4:bgGYcA/53GAGgIvFb+4
- TLSH T1463344387FE62972E37BDFB586F651C6B93578223D16980D40CA43844833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4428-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001136a-13.dat CryptoLocker_rule2 behavioral2/memory/5036-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5036-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5036 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_135af3e4b9d5a8dfbd10496ce43bb8c9_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 4428 wrote to memory of 5036 4428 2026-08-24_135af3e4b9d5a8dfbd10496ce43bb8c9_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_135af3e4b9d5a8dfbd10496ce43bb8c9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_135af3e4b9d5a8dfbd10496ce43bb8c9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4428 -
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:5036
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 49KB
- SHA256 91dc1ed20f355b67dd35f6e17dff10cb44fbce5f93a121f5dceefab19d044bdc
- MD5 7cda213ab90c3469fa7b6207fa6cb76d
- SHA1 8f8d437d8b9f06c3de214eb47f5dbfe783ff44f1
- SHA512 c78028c9a51b5c26b821c1bc5ffdad5794d9fc8de98e81d40857a8ccbe860b213135f94ee0acec90ccc7cdfa0bae386c612e894b50798a9b76d9d22fd833d3ce
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXZwl2:bgGYcA/53GAGgIvFb+2
- TLSH T12D3344387FE52972E37BDFB586F691C6B97578223D16980D40CA43844833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH