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
27/07/2026, 00:52
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-27_092fa83554a390e50765b71189a6a0c6_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-27_092fa83554a390e50765b71189a6a0c6_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-27_092fa83554a390e50765b71189a6a0c6_cryptolocker_elex.exe
- Size 45KB
- Sample260727-a8cs3afm61
- SHA256 5f9873f1f9955f593b9d534000fea7eb35267ab6e0d897161d876c5e8e7b2c24
- MD5 092fa83554a390e50765b71189a6a0c6
- SHA1 87a5994af9fa43079cf750fa62de62a5aff14cc5
- SHA512 df72087cfd57f88ecaf997689259e7f17e19c793201e41938fb4d1e146a14a84795147bd829b15be1d5a5f816132b4653781035ca81c46a1ae560fe7f78efcac
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCT5:bgGYcA/53GAGgIvF4
- TLSH T1E52355387FE62972D37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4068-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000016cd6-13.dat CryptoLocker_rule2 behavioral2/memory/5732-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5732-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5732 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 2026-07-27_092fa83554a390e50765b71189a6a0c6_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 4068 wrote to memory of 5732 4068 2026-07-27_092fa83554a390e50765b71189a6a0c6_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-27_092fa83554a390e50765b71189a6a0c6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-27_092fa83554a390e50765b71189a6a0c6_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4068 -
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:5732
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 45KB
- SHA256 9a3c9f13e92b6073cb593944d4d84eb6866bae07b67fc7d817244711dd0bfe7c
- MD5 d4276233ca3e0b4377b8120992616355
- SHA1 5411b251d995cf547dc4f5fa8357ff20a9eb90de
- SHA512 a02308a298f8c7fca5b4deaf06b2217577e6f35ad46425baee2fedb9f69523d866223b28e6352b407895f080b6b73beee905a840d3c883836151eb915a30d6e9
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTG:bgGYcA/53GAGgIvFD
- TLSH T17C2355387FE62972D37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH