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
20/07/2026, 02:56
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-20_7be0e74ea42315ccbd6da4e35c69d112_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-20_7be0e74ea42315ccbd6da4e35c69d112_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-20_7be0e74ea42315ccbd6da4e35c69d112_cryptolocker_elex.exe
- Size 41KB
- Sample260720-dfhemads6n
- SHA256 4895ac0e44f21fdd9d92817041fdc2ecd5777268a609332f4a3ca65a611809d6
- MD5 7be0e74ea42315ccbd6da4e35c69d112
- SHA1 13f6a83b59b0f80084e925d28b062ce8f056fe24
- SHA512 d14cb20af120dc655d53bca92f076153a7080fa8d315f9c505df826fdcb3af5bf98839ab580ea95375015fae7f4e1a96371bf8c47e733aefbdda9467a4834175
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCX:bgGYcA/53GAGgIvFG
- TLSH T1351384387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/3820-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0017000000024459-13.dat CryptoLocker_rule2 behavioral1/memory/5104-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/5104-19-0x0000000008000000-0x000000000800A000-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 2026-07-20_7be0e74ea42315ccbd6da4e35c69d112_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 5104 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-07-20_7be0e74ea42315ccbd6da4e35c69d112_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3820 wrote to memory of 5104 3820 2026-07-20_7be0e74ea42315ccbd6da4e35c69d112_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-20_7be0e74ea42315ccbd6da4e35c69d112_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-20_7be0e74ea42315ccbd6da4e35c69d112_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3820 -
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:5104
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 be2a9a811f277403168cc687d58e3e2b01b07e1a5ffcf76eae9e27c129143eb8
- MD5 440317e92b41bc01ece0527675f2a87b
- SHA1 1aa06fe2f81775c71fa927232f4a12b23b028b9a
- SHA512 f8b2ce622809f41032e1a18ac646e75c34420d5e83456769dd7616b449b28cd473425dba12ba0c1d94df999c5a0435abb5ddafbbda6f96c497c5c79e1ae4fb47
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCp:bgGYcA/53GAGgIvFM
- TLSH T1FA1384387FE62972E37BDFB586F691C27975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH