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
14/08/2026, 01:36
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-14_7b8142bbf0fbe875b5fc22b42d7dc9d0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-14_7b8142bbf0fbe875b5fc22b42d7dc9d0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-14_7b8142bbf0fbe875b5fc22b42d7dc9d0_cryptolocker_elex.exe
- Size 46KB
- Sample260814-b1fenaee69
- SHA256 3c0cbf53b409a42fb5200a57e9fccea3435fd0cd372cad562ae976df02ed81ab
- MD5 7b8142bbf0fbe875b5fc22b42d7dc9d0
- SHA1 3ba6be53794031331a41a52d09bd43ce38684b75
- SHA512 a7f5eb9f3b77c9583613e5c4a1fe7b1dbb0505073559795ec6bbb16c7ca78e7fe16921054b8181cc905cf0504ab167a905d352ec3d537556d2fa223e388dbf56
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTh:bgGYcA/53GAGgIvFo
- TLSH T1922355387FE66972D37BDF7586F691C6B935B8223D16980D40CA43444833F65ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3620-9-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000500000001b851-13.dat CryptoLocker_rule2 behavioral2/memory/5028-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5028-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5028 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 2026-08-14_7b8142bbf0fbe875b5fc22b42d7dc9d0_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 3620 wrote to memory of 5028 3620 2026-08-14_7b8142bbf0fbe875b5fc22b42d7dc9d0_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-14_7b8142bbf0fbe875b5fc22b42d7dc9d0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-14_7b8142bbf0fbe875b5fc22b42d7dc9d0_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3620 -
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:5028
-
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 28ff35a0495011833d06871889dccbb65039c4419b8b47b900558f4586e3a269
- MD5 bf329da275b65d0dd9377c7ded47892d
- SHA1 704cb192f3083c1a2aeb73121460351891a7e8f8
- SHA512 7bd3268fda48a011554f56e5d8a43a67f78a2fc14bf1d26cac4f6e77c0a74605305bcc69c0be981a6b463557e7d035330c04b35c7bf1e1df2dd25b7d1dfd253b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCT/K:bgGYcA/53GAGgIvFX
- TLSH T1192355387FE52972E37BDFB586F691C6B97578223D16980D40CA43444833F65ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH