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
20/08/2026, 19:08
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_469e5ae84db44597aed3ec9ce6ef0f83_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_469e5ae84db44597aed3ec9ce6ef0f83_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_469e5ae84db44597aed3ec9ce6ef0f83_cryptolocker_elex.exe
- Size 27KB
- Sample260820-xtnckstfqf
- SHA256 c70447fdb4eadbda9c245faa327954cab74b230b8e74f93bfc01b91194aa730d
- MD5 469e5ae84db44597aed3ec9ce6ef0f83
- SHA1 9b009ea4bb4b0a6a2fed63bc7308b884adbad1a7
- SHA512 3c8838f41461fdab42f065c862c0053454b8062c7e648a8a7f23f817e78f2617a677a93a12b2a3bb88e87663aab89efa51f1c6ebb5c60675cd26e8bf698f3bbb
- SSDEEP 384:b674uGLLQRcsdeQ72ngEr4K7YmE8j60payjfjDnHMJZ:b674zYcgT/Ekd0cqfjzsJZ
- TLSH T159D23C347BE73CA1E33B9F7056FB9041797EBC223E35884EA8CE7348C972691A801546
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000a000000011390-13.dat CryptoLocker_rule2 behavioral2/memory/5804-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 700 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_469e5ae84db44597aed3ec9ce6ef0f83_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 5804 wrote to memory of 700 5804 2026-08-20_469e5ae84db44597aed3ec9ce6ef0f83_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_469e5ae84db44597aed3ec9ce6ef0f83_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_469e5ae84db44597aed3ec9ce6ef0f83_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5804 -
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:700
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 28KB
- SHA256 7edad2b9d66273592831f18a15b4563ab322c4871be252152e3453e6e3091d60
- MD5 31b3000740c1a3f3b9762e279a9e21f8
- SHA1 df4c68dff848790b7be807cbfbb92b09cef5b095
- SHA512 6b2260562c081f79f176e10cbcd4ef475d8a213a9f6b2b59d855407bc1648bb126030df3a99e139f5fac34c82f7749cc6508fa5a052cc6793e96d175858065d1
- SSDEEP 384:b674uGLLQRcsdeQ72ngEr4K7YmE8j60payjfjDnHMJH:b674zYcgT/Ekd0cqfjzsJH
- TLSH T11CD23C347BE73CA1E37B9F7056FB9041797EBC223E35884E98CE7748C972691A801546
- MD5 SHA1 SHA512 SSDEEP TLSH