Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
27/08/2026, 15:11
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-27_714a68e39b787ae395c26e277d16671f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-27_714a68e39b787ae395c26e277d16671f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-27_714a68e39b787ae395c26e277d16671f_cryptolocker_elex.exe
- Size 1.0MB
- Sample260827-sk2fmaxamd
- SHA256 455d5b8549bc32c5efba1edfaf70edcf08d190fa7156f34850b185e7dde63bbc
- MD5 714a68e39b787ae395c26e277d16671f
- SHA1 1886c95cba6ca85817dcb8c8bc0e334f6b880c67
- SHA512 b3686d77a5a854545b71f52ae0ae6d3de96cf63ae717006b3576a16f45d8b28fd7cba34f6b8d57e5400a056430e5f18cfffa271d06f11408ae02d20b28c2e8d1
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqW:bGbvflT/ZFIjBzhxwOgXKarY1iBL
- TLSH T1152509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/4524-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00080000000004eb-13.dat CryptoLocker_rule2 behavioral1/memory/1868-17-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1868-25-0x0000000008000000-0x0000000008022000-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-1-5-21-1074038928-2032447174-945360078-1000\Control Panel\International\Geo\Nation 2026-08-27_714a68e39b787ae395c26e277d16671f_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 1868 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 2026-08-27_714a68e39b787ae395c26e277d16671f_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 4524 wrote to memory of 1868 4524 2026-08-27_714a68e39b787ae395c26e277d16671f_cryptolocker_elex.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-27_714a68e39b787ae395c26e277d16671f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-27_714a68e39b787ae395c26e277d16671f_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4524 -
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:1868
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.0MB
- SHA256 761a1df7fb845a5929be7e83f0a63802d8346f7469a3145fc589ba6623d1976d
- MD5 d6e1590d06f8519a775d012b55e455da
- SHA1 8c279d19b1336fc974d0054901a33cbf9dd1d3d8
- SHA512 e55d71678a1c10c7bf1978347c7cf771cbab11e5e4ff68caa9d76d713ed36b4cc932874bf04e1293c2d62bee215974616a45d6751cca632f0939590b808b7404
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqz:bGbvflT/ZFIjBzhxwOgXKarY1iBG
- TLSH T1ED2509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH