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
10/08/2026, 12:27
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-10_13b6eefee721c7db956afa582e747c89_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-10_13b6eefee721c7db956afa582e747c89_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-10_13b6eefee721c7db956afa582e747c89_cryptolocker_elex.exe
- Size 46KB
- Sample260810-pm82psgb45
- SHA256 0081729fa78098a6055fac29c35590c65d17e345d75e9367de99352d19842c5c
- MD5 13b6eefee721c7db956afa582e747c89
- SHA1 e5a340c7dbac4064b7d7ba2e459e43898b086e02
- SHA512 b010fe4476f2bbe0b5f01cda2a62872a306a9af4b96eb63e379f0e12b46158f64f6ab3f18b46bfda52722f9b196e866ce1b1e13bc38c32d5d537d7308e5b9974
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhG:bgGYcA/53GAGgIvF7Ec
- TLSH T1FB2321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444833F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4704-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000900000001138e-13.dat CryptoLocker_rule2 behavioral2/memory/916-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/916-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 916 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 2026-08-10_13b6eefee721c7db956afa582e747c89_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 4704 wrote to memory of 916 4704 2026-08-10_13b6eefee721c7db956afa582e747c89_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-10_13b6eefee721c7db956afa582e747c89_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-10_13b6eefee721c7db956afa582e747c89_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4704 -
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:916
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 d194c776b547a1fe09c189a11a4ca2f8691fbe5e45ca9eb192e44a2f7fd4134c
- MD5 f934624a387b7e58c7d388f13316e566
- SHA1 b766fbc3f6780a8a284db33a07110d25938b3245
- SHA512 555577c8b4e205205be4ccba5515d48200ec7173f175cc410a5261f3d19517ba160c09ea9565a5c3b3b950c2a6cb0ab55efbadce5926747f49a108b41c779568
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhv:bgGYcA/53GAGgIvF7EJ
- TLSH T1652321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444833F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH