Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/08/2026, 09:01
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_11da301e45d4dddc9018e5fdd82d5f46_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_11da301e45d4dddc9018e5fdd82d5f46_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-08_11da301e45d4dddc9018e5fdd82d5f46_cryptolocker_elex.exe
- Size 42KB
- Sample260808-ky38daxvbx
- SHA256 0c03a2af3b780db6de0361148948cd277783f98a06e1d78056bffc6a92fe56af
- MD5 11da301e45d4dddc9018e5fdd82d5f46
- SHA1 b065c10d9d5fb6b0dde53d61bf7aed7a2c89da1b
- SHA512 4c5c1c3beabd89506213b772f4c145f049e30e79766dbf6fbb32772f016526ddd94fd7fe2bc10dbdec63e13afb148205a488886c778c34b71f8a320836e358d2
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXF:bgGYcA/53GAGgIvFw
- TLSH T18A1374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/4116-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x001a00000002439c-13.dat CryptoLocker_rule2 behavioral1/memory/2112-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2112-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\Control Panel\International\Geo\Nation 2026-08-08_11da301e45d4dddc9018e5fdd82d5f46_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 2112 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 2026-08-08_11da301e45d4dddc9018e5fdd82d5f46_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 4116 wrote to memory of 2112 4116 2026-08-08_11da301e45d4dddc9018e5fdd82d5f46_cryptolocker_elex.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_11da301e45d4dddc9018e5fdd82d5f46_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_11da301e45d4dddc9018e5fdd82d5f46_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4116 -
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:2112
-
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 00e68933803ee407ea57e6ccbc94763f52eefab875eeb8379d318112bc5da7fd
- MD5 ed54b677b9d41fae08127819ccef3cc9
- SHA1 5b7a071da0e5f849ae382d765d1a137dc217f750
- SHA512 0c2f26e3ebe94cb25b30d4638de88a19dcd3c6bab114ecc4a11a3d7085e23d651bb7441e027a827cfeac0e8acb3e1b1eeabe43a5232d270fc83e062ba8c0f7be
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCX2:bgGYcA/53GAGgIvFH
- TLSH T1B81373387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH