Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
28/08/2026, 15:15
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-28_6679204d25bf7b6bde53a23aa8245657_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-28_6679204d25bf7b6bde53a23aa8245657_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-28_6679204d25bf7b6bde53a23aa8245657_cryptolocker_elex.exe
- Size 41KB
- Sample260828-sm8bysbl9w
- SHA256 52daf2dbc4c79be2d0285d3fd6e8886dd25cbeba8348d051c681a218aa51d862
- MD5 6679204d25bf7b6bde53a23aa8245657
- SHA1 f5e78c226235cee61498c79ef648ea06b7f13cc4
- SHA512 017650c83a77ac771cf07adffef979156c6dcd3b1a6e0651a35ed855e6d1227408f3cc5828589e643aa468220bcbb550517a34a70d2eee273ad1b58db0e18a9e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2Z/wT:bgGYcA/53GAGgIvF9v2ZIT
- TLSH T18C1377387FE62972E37BDFB586F691C6B93578223D16880D44CA53844833F56EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1316-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000019cb1-13.dat CryptoLocker_rule2 behavioral2/memory/4504-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4504-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4504 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 2026-08-28_6679204d25bf7b6bde53a23aa8245657_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 1316 wrote to memory of 4504 1316 2026-08-28_6679204d25bf7b6bde53a23aa8245657_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-28_6679204d25bf7b6bde53a23aa8245657_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-28_6679204d25bf7b6bde53a23aa8245657_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1316 -
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:4504
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 56bca65821f273b10d9363bd5e93244bb26f9caa844bf490fa555bbc21e0d084
- MD5 ea9ec8fec703456739448c531204363a
- SHA1 d31920685d852cc1dab43b6f83b035a4e57c0bd3
- SHA512 7bdb6d6dbc0d4105707dbe48340eb20adee8d44dd6f5874ef10e9e181c71d623549bb1a87b23dde8a91bd4e749459671167dbab55c5f1a894258e777e60b8f1e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2Z/wf:bgGYcA/53GAGgIvF9v2ZIf
- TLSH T1021386387FE62972E37BDFB586F691C6B93578223D16880D44CA53844833F56EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH