Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/07/2026, 00:50
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-27_3f969cc225661ff981ea3bdd5aeb31b6_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-27_3f969cc225661ff981ea3bdd5aeb31b6_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-27_3f969cc225661ff981ea3bdd5aeb31b6_cryptolocker_elex.exe
- Size 41KB
- Sample260727-a66clafm5x
- SHA256 3f09004562b894a6c7d70efca572ed47eef8ccbcc2dab5a54a0838d7687ff4ae
- MD5 3f969cc225661ff981ea3bdd5aeb31b6
- SHA1 2d8b543fa064d6a4222a0e74d17f53b66ba36ae6
- SHA512 42d1b7b48dbf6a3b76bc58a25398567d261c80de4c20c22709a69c04514f9ee85d70df0cc09dc7d61b2787bf61a62486a5dbfca283aee2f5cdb1bd87824cac4b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCy:bgGYcA/53GAGgIvFD
- TLSH T1CE1375387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2836-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/5388-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5388-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5388 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 2026-07-27_3f969cc225661ff981ea3bdd5aeb31b6_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 2836 wrote to memory of 5388 2836 2026-07-27_3f969cc225661ff981ea3bdd5aeb31b6_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-27_3f969cc225661ff981ea3bdd5aeb31b6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-27_3f969cc225661ff981ea3bdd5aeb31b6_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836 -
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:5388
-
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 6d9bf829c9a02f2466b7acb0d4e7c3d4ee4246b03019ee88a2a391ed1d787829
- MD5 e4c4eeeb105399678b659cb6c4e3343c
- SHA1 4dc898289ce5deb84d94d096d064ad42a42bcd8b
- SHA512 53c568a89596145a1acfa105b954a003444a408b7b23a88cad0a174b2480e90168284d56fbb44829842112d08561146c5802a809544e9be3b454c60690b60155
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCJ:bgGYcA/53GAGgIvFk
- TLSH T1B81375387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F66EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH