Analysis
- max time kernel
128s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/07/2026, 11:21
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-18_50968ea1f0891fdb6ca3ba912cd36541_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-18_50968ea1f0891fdb6ca3ba912cd36541_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
6 signatures
150 seconds
General
- Target 2026-07-18_50968ea1f0891fdb6ca3ba912cd36541_cryptolocker_elex.exe
- Size 4.6MB
- Sample260718-ngbnkshx5r
- SHA256 555d23f95fa09f54b5908377f7347b553c4fc2a5e0cdb645575bc16bf7054b8c
- MD5 50968ea1f0891fdb6ca3ba912cd36541
- SHA1 31176f21ce46830fcfa80582090ce443143c13ab
- SHA512 5c4c612339d2e15a855ba86f92410d4f53f569b36247242b0e86b01da32479f3a998034ce9169f7e3c296d4d6b079fa9e53b10646002b5bbcdeece668c6d7d5d
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTC:w/ZFIjBzF/ZFIjBzPEUusC
- TLSH T1C8363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5636-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001200000001b664-13.dat CryptoLocker_rule2 behavioral2/memory/5400-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5400-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x001200000001b664-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 5400 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 2026-07-18_50968ea1f0891fdb6ca3ba912cd36541_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 5636 wrote to memory of 5400 5636 2026-07-18_50968ea1f0891fdb6ca3ba912cd36541_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-18_50968ea1f0891fdb6ca3ba912cd36541_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-18_50968ea1f0891fdb6ca3ba912cd36541_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5636 -
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:5400
-
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 1340a59d138f73e949182912d2ebe2d4eb7f578f2846f49d83f1b716a77899fa
- MD5 d7f6f47b7f6c5e133e84d26309665d2c
- SHA1 9c073529e4550f3ca12edbf24a918db0d80194ba
- SHA512 8634401a68b2d3ccaf538c382169abbcdbd32505f4ded0da11d0affcb6caf716d9b8d3c8876523841e58fe3c0fd21f29192cd0f1165491ba07c5562aca195dce
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT3:w/ZFIjBzF/ZFIjBzPEUus3
- TLSH T1DC363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH