Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/09/2026, 12:51
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-09-21_5f0951db776e2aa0b47a97358a3d2f49_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-21_5f0951db776e2aa0b47a97358a3d2f49_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
6 signatures
150 seconds
General
- Target 2026-09-21_5f0951db776e2aa0b47a97358a3d2f49_cryptolocker_elex.exe
- Size 4.6MB
- Sample260922-p3llcawbpc
- SHA256 c899e7d647ae39c47810b9a72ee24dac6768d651c5b013e088ac998f3ea03f66
- MD5 5f0951db776e2aa0b47a97358a3d2f49
- SHA1 c2d68b3daac06c487f75e8f185e7061870ceffab
- SHA512 0d9f159b000095703c8bc2ccccbd196147764bcc654ba4f93de93cac117a98e3c82590295b29dcb5d607e5e747f8f8ecfe744ef6bf2017c76b1bda592f0c3e06
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTu:w/ZFIjBzF/ZFIjBzPEUusu
- TLSH T1BA263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4764-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00160000000115b9-13.dat CryptoLocker_rule2 behavioral2/memory/4300-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4300-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x00160000000115b9-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 4300 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 2026-09-21_5f0951db776e2aa0b47a97358a3d2f49_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 4764 wrote to memory of 4300 4764 2026-09-21_5f0951db776e2aa0b47a97358a3d2f49_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-21_5f0951db776e2aa0b47a97358a3d2f49_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-21_5f0951db776e2aa0b47a97358a3d2f49_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4764 -
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:4300
-
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 751ed9ef800e4b7546e2c082d09cbb20666f37de0a7171dab2d1898aaf6b2a8f
- MD5 6f5463ae13d17d05a8d62cf7e42c9fd2
- SHA1 e3f2b7e4598cf910e29ff637350fc21d09a5fbdd
- SHA512 dea9715a537b84cbef90de335d263b9349e25c67545cddcf74cf2aa776d3ab9fffb2448e64b2573b8f122834f4d804542d0bab3e91973977f10cfcc8c99571cf
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTy:w/ZFIjBzF/ZFIjBzPEUusy
- TLSH T15F263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH