Analysis
- max time kernel
150s - max time network
147s - 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, 11:34
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_5c2608f31e9093f4c4afd04fc65bd990_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_5c2608f31e9093f4c4afd04fc65bd990_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_5c2608f31e9093f4c4afd04fc65bd990_cryptolocker_elex.exe
- Size 42KB
- Sample260819-npvresef72
- SHA256 983ecc798736e9c526cd5295384f0d6d6e014705de2dd08d703fe6f922910a26
- MD5 5c2608f31e9093f4c4afd04fc65bd990
- SHA1 d2f77662d384b1e3f9a1b14c1cf87eb1e13c940a
- SHA512 465a67a62fcf97957bc6b66f6ae7416081b8747e6d386b93347025454c853fc74c705c3b2cd18126d749971b477e57f00ac86e7bb7d047d5faa4ea5f24613c9d
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCRJ:bgGYcA/53GAGgIvFkJ
- TLSH T1C91374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3672-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0007000000011394-13.dat CryptoLocker_rule2 behavioral2/memory/5192-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5192-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5192 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_5c2608f31e9093f4c4afd04fc65bd990_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 3672 wrote to memory of 5192 3672 2026-08-19_5c2608f31e9093f4c4afd04fc65bd990_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_5c2608f31e9093f4c4afd04fc65bd990_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_5c2608f31e9093f4c4afd04fc65bd990_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3672 -
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:5192
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 52d4935aa1d480d9023c89828e93e7031fef97e04fef007eba7c13a9418c4a5b
- MD5 2b30c3a88000980860e4767cb99701ec
- SHA1 34491c6d3590e1dbce62588504e4f288d5fe68e0
- SHA512 bfcf239662fd884210e1d1d6a7dd4a4bcbab47b05b9f6a93d4b703dcd8de52e9f8c72f83ec5257e51ee306ebb4cc1ddf8a3cb60f5bf6580eedf19dd472df8f87
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCRr:bgGYcA/53GAGgIvFkr
- TLSH T1871374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH