Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
15/08/2026, 01:32
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-15_4ba6464f5c58d4490bbc80e6fedf1b29_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-15_4ba6464f5c58d4490bbc80e6fedf1b29_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-15_4ba6464f5c58d4490bbc80e6fedf1b29_cryptolocker_elex.exe
- Size 52KB
- Sample260815-bya26axset
- SHA256 da78b926940b0d719db52bbb8a79251a43dcdf90eef821c10fc64c441924eb7e
- MD5 4ba6464f5c58d4490bbc80e6fedf1b29
- SHA1 418afd4217566203ac824f2865ef8ff7a6aa894b
- SHA512 e1b914e8778bd0119451e1e2fa1e8650f403b03b40486e9ce386851f4c234832638e99ff41f38a5358e00ccddb3b9af0744daf95ddb58b03791a8dcc21814eef
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/kE:bgGYcA/53GAGgIvF9v2ZvE
- TLSH T1ED3312387BE56A72E37BCFB586F691C6B93578223C16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2344-8-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0009000000019cb5-13.dat CryptoLocker_rule2 behavioral2/memory/2768-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2768-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2768 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 2026-08-15_4ba6464f5c58d4490bbc80e6fedf1b29_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 2344 wrote to memory of 2768 2344 2026-08-15_4ba6464f5c58d4490bbc80e6fedf1b29_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-15_4ba6464f5c58d4490bbc80e6fedf1b29_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-15_4ba6464f5c58d4490bbc80e6fedf1b29_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344 -
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:2768
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 52KB
- SHA256 c1e1d1fcd51bacbb123262257bc93a29c7530d5cfe74f5e7b108739800678df0
- MD5 aefdc91207ea4c86271b585d9f1cfbe8
- SHA1 46e1d1fc9639e4741ad4dc697f2087893d4044aa
- SHA512 b19c1aa4b70823a341218e01fb56166e1aa747c31529c70376c37fd8a4a9139c8979587b21e4b53bae547e08c06924c90092a3df1f23498f91671d29a8e945d5
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/ka:bgGYcA/53GAGgIvF9v2Zva
- TLSH T1AF3312387BE56A72E37BCFB586F691C6B93578223C16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH