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
28/07/2026, 22:36
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-28_8860692c3e9b53864ca0283075ca09f5_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-28_8860692c3e9b53864ca0283075ca09f5_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-28_8860692c3e9b53864ca0283075ca09f5_cryptolocker_elex.exe
- Size 41KB
- Sample260728-2jrdpsbj61
- SHA256 f42dd132204aa845fdada19334bbae57595d43bc6b06f6e356c64e5cf393f913
- MD5 8860692c3e9b53864ca0283075ca09f5
- SHA1 fd4961f6aa7f22c215dbf0d406f267b3dfaf1a91
- SHA512 883e7afc97cd8d2d8c9f8364e112a5c793614fd4f48df4f150d189ece39fcae532e4afe1cf92ad477706bded51100a4eac2421c7fe17dcda55370f264acc8dc7
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC7c5:bgGYcA/53GAGgIvFf5
- TLSH T18A1375387FE62972E37BDFB586F691C6B975B8223D16880D44CA53844833F62DC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4464-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85a-12.dat CryptoLocker_rule2 behavioral2/memory/3604-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3604-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3604 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 2026-07-28_8860692c3e9b53864ca0283075ca09f5_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 4464 wrote to memory of 3604 4464 2026-07-28_8860692c3e9b53864ca0283075ca09f5_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-28_8860692c3e9b53864ca0283075ca09f5_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-28_8860692c3e9b53864ca0283075ca09f5_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4464 -
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:3604
-
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 58ac0975cc828b69b853ee4fed6ad93d2de2c2255a3b18165466d01a8a4466ae
- MD5 ad50c7028fa236b641adc8a013b9c181
- SHA1 1a9c4234206305c47365825dea64f47cd90ad855
- SHA512 23c4b534c38401a8ec434419257b4b5576a3e1898d6ad48212489b89dc4423bc0ffa4f2ec758b7e751927b34c0e3f5fa13184fafec56a281abdba392c33eea03
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC7ca:bgGYcA/53GAGgIvFfa
- TLSH T17A1375387FE62972E37BDFB586F691C6B975B8223D16880D44CA53844833F62DC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH