Analysis
- max time kernel
150s - max time network
150s - 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, 06:38
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-10_36cc8760a7cab12ffcf9203e4a8bf616_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-10_36cc8760a7cab12ffcf9203e4a8bf616_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-10_36cc8760a7cab12ffcf9203e4a8bf616_cryptolocker_elex.exe
- Size 4.6MB
- Sample260810-hec6qsxyct
- SHA256 b33d04ad06de3dedf79fedcf11b62fc9732349897af2aed3c2fc207f368abe9a
- MD5 36cc8760a7cab12ffcf9203e4a8bf616
- SHA1 99268b7d852d7de6ec4fd1bb6259b6dacbe795ae
- SHA512 672f381181fe38b9825cc71617d5c9a2a98907f63a5d79ca909da4aa8a35d4230622aae16df1388ef41d22359682b4422d5921cdce16f130ef753a3dd61fe2de
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTZ:w/ZFIjBzF/ZFIjBzPEUusZ
- TLSH T1C7263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5708-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000019c8f-13.dat CryptoLocker_rule2 behavioral2/memory/4216-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4216-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000c000000019c8f-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 4216 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_36cc8760a7cab12ffcf9203e4a8bf616_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 5708 wrote to memory of 4216 5708 2026-08-10_36cc8760a7cab12ffcf9203e4a8bf616_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-10_36cc8760a7cab12ffcf9203e4a8bf616_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-10_36cc8760a7cab12ffcf9203e4a8bf616_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5708 -
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:4216
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 13c49e2e6c94ab2a6dfa61ecd8955e798e8aa37a496fdf2d7bd477dec6e68a29
- MD5 e1baf44635ca17b6f11cb513400e1f2b
- SHA1 347b0a25f8188fcb9a21cefcf8b7a9f2d9dea080
- SHA512 437a4b33eed324da83c5a7cca85e3a15be91446118a03d2fcb40063cb82aef46f6ab31bf99b7d7345e6e88d78e10c844d201c6180d8492bc0847480a21b36014
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT5:w/ZFIjBzF/ZFIjBzPEUus5
- TLSH T168363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH