Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 23:47
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_92b6d589da5fa3fd7163ae4e6937a5d7_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_92b6d589da5fa3fd7163ae4e6937a5d7_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-20_92b6d589da5fa3fd7163ae4e6937a5d7_cryptolocker_elex.exe
- Size 47KB
- Sample260820-3s8vsaxflg
- SHA256 3ad7999cebdf578cb847fe7547b393327621299b79fa3e2332d16fd03ae16fa6
- MD5 92b6d589da5fa3fd7163ae4e6937a5d7
- SHA1 a3f7cda3971e73071c188433079f2d821e982fba
- SHA512 ae6e0da7e11e25ff54a9ca3a4d1403fcf62311a8be1e50c2538b9a0fedd2446ac20a9b5fdda4bab5754de25689e5e012eb52f03ff75388f6ce486510e313d3ad
- SSDEEP 384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUk3YHCmTt:bm74zYcgT/EkM0ryfjd3Rkt
- TLSH T1E6234F24F6D62BF1E23AAF70C5FE9071B62BB81329154C4D748BEBC684327539A5350B
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/1580-0-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1580-3-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019cb5-14.dat CryptoLocker_rule2 behavioral2/memory/3704-19-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3704-27-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3704 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 2026-08-20_92b6d589da5fa3fd7163ae4e6937a5d7_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 1580 wrote to memory of 3704 1580 2026-08-20_92b6d589da5fa3fd7163ae4e6937a5d7_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_92b6d589da5fa3fd7163ae4e6937a5d7_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_92b6d589da5fa3fd7163ae4e6937a5d7_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1580 -
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:3704
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 946814e733fe4c23f4be4b653e3bdb1853acdcf73621491be9923355ff563cfa
- MD5 45a6114fee054264b999d3c9ae0b5cbb
- SHA1 4c460bfdb2ee42d2c80097bb56f2c9496e34ef1d
- SHA512 f3512a5d0cb4957cb827bbc8c986e9cdb907f16494cf2e04fa4248973fe9c01b0bcad9f72135ca2979fd9cba88cfb5c1529c27b98736afff9de7813e48f25189
- SSDEEP 384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUk3YHCmT6:bm74zYcgT/EkM0ryfjd3Rk6
- TLSH T145234024F6D62BF1E23AAF70C5FE9071B62BB81329154C4D748BEBC644327539A5350B
- MD5 SHA1 SHA512 SSDEEP TLSH