Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/09/2026, 08:41
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe
- Size 43KB
- Sample260905-kll4bsch52
- SHA256 5551ec59f387b1ea4ec518fb368d50600ed87a7d98166ed92258b51c52d4b9c8
- MD5 65be0224d7b7b102f60993f09ec5c4df
- SHA1 eb6e21788e6d54dbceb02a81fcb759d40bad6c09
- SHA512 347fa9b8e01394ba7913f759236e7740c818a5fc887ca79d604b1eea7b835aab01056df6a5b3e0c02d34f2965c2592f29767608a2fd6afdf4f29555d11b4f4e6
- SSDEEP 384:bm74uGLLQRcsdeQ72ngEr4K7YmE8uYo0nrlwfjDUOT:bm74zYcgT/Ek70ryfjBT
- TLSH T19813A3246793B892D4BA9E7321FB907D647A78113A29444E7CCFF25DCA71BF0B403096
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/1016-0-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1016-3-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x002000000001c3fd-14.dat CryptoLocker_rule2 behavioral2/memory/4912-19-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4912-21-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4912 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 2026-09-04_65be0224d7b7b102f60993f09ec5c4df_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 1016 wrote to memory of 4912 1016 2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-04_65be0224d7b7b102f60993f09ec5c4df_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1016 -
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:4912
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 43KB
- SHA256 3e720e5d695b13e98089bd689412bda73a89f3b9316b4692c5edf793ff6cf0fb
- MD5 30b8d6cf5a0d34b95fbe02959fdb9663
- SHA1 3b6a9eeb8fae63966f2801fef6f9232cfc4f523c
- SHA512 409f1071a941fefbe587fb7163efe9a4f0bcbc35033ef5f212a9d2c8acacacd29bd2615964aa2c7b19d61c54bf40fcd3ac49c3c3356d6585f5851a3e6ee10a1c
- SSDEEP 384:bm74uGLLQRcsdeQ72ngEr4K7YmE8uYo0nrlwfjDUOj:bm74zYcgT/Ek70ryfjBj
- TLSH T1A513A2246793B892D5BA9E7321FB907D647A78213A29444E7CCFF25DCA71BF0B403096
- MD5 SHA1 SHA512 SSDEEP TLSH