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
20/08/2026, 02:24
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_93384d55755a512871d8bf56aa5df2d7_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_93384d55755a512871d8bf56aa5df2d7_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_93384d55755a512871d8bf56aa5df2d7_cryptolocker_elex.exe
- Size 30KB
- Sample260820-cvyvgsdn41
- SHA256 3aa083a7e82b0db91b81a8a529f3ccc6968f19548cf6d24d7305c2b52bb0fe28
- MD5 93384d55755a512871d8bf56aa5df2d7
- SHA1 44f0167c59e0cf7a59ad3f88c442320b0a8c6711
- SHA512 f5780259de94d5ccc63c3c3cd00692626a2108021c375da15497fe23c0f4b94e58a02cf1bf8380e31c7b9ede8b6651d61952b1d6f04c6d145102550fcda7ff9b
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDzaNYqApjZvlyH:bA74zYcgT/Ekd0ryfjLzVpdvlo
- TLSH T1DCD2FB387BD73C61D27B9E7555F7A082797ABC223E258C4E58CF33888D32B51AC42549
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4592-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000019cb1-13.dat CryptoLocker_rule2 behavioral2/memory/996-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/996-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 996 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_93384d55755a512871d8bf56aa5df2d7_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 4592 wrote to memory of 996 4592 2026-08-20_93384d55755a512871d8bf56aa5df2d7_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_93384d55755a512871d8bf56aa5df2d7_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_93384d55755a512871d8bf56aa5df2d7_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4592 -
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:996
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 30KB
- SHA256 3a2fbcb6ad808a1e956db803772ffaae62b170294c76a3b3932df10de11ff6b6
- MD5 c73b244f69e80a7e6fb2a9b9ed3727fb
- SHA1 d0fd8199cbf47871679908ee6ee35f28eab3b384
- SHA512 6629f881fcbb6416bb7edf9465232c9c6a0e7d7de6e17a4c19d2f09aacb150b51dd3c87ad4182dff93eb44cca2f76100174115e4a1d4a9d4d1234778b66854c8
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDzaNYqApjZvlyf:bA74zYcgT/Ekd0ryfjLzVpdvlY
- TLSH T105D20B387BD73C61D27B9E7555F7A082797ABC623E248C4E58CF33888D32B52AC42549
- MD5 SHA1 SHA512 SSDEEP TLSH