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
08/08/2026, 06:20
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-08_f0b772d80f2f5c4dd2860696c989cfdd_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_f0b772d80f2f5c4dd2860696c989cfdd_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-08_f0b772d80f2f5c4dd2860696c989cfdd_cryptolocker_elex.exe
- Size 3.4MB
- Sample260808-g383msvxet
- SHA256 b80d5eb8f9b7731e3c4d983ee99edfa2b81ca60732a6206b26b0a2bca2c12d79
- MD5 f0b772d80f2f5c4dd2860696c989cfdd
- SHA1 4bc89956b4c18308614bf4bfecb1373496ac2967
- SHA512 f171802dac790ecb47cac74ebc6c605712abda6df2ee50b29e12acf7bb41bbc261c666c438b7718df68248dfdae406d459b3375abdd201367674f225062484c5
- SSDEEP 49152:uR/ZFIjBzT1CIdSPHf0f/ZFIjBzGAyGs+Q7uOZzNvBLEdfb:uR/ZFIjBzldUfs/ZFIjBz7jSZDW
- TLSH T127F55C6F68A611A4DCFAC8305BE9F222FF6334594739A7F31AA091201F25BD1F875712
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2836-8-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/5056-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5056-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000600000001b85f-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 5056 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 2026-08-08_f0b772d80f2f5c4dd2860696c989cfdd_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 5056 2836 2026-08-08_f0b772d80f2f5c4dd2860696c989cfdd_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_f0b772d80f2f5c4dd2860696c989cfdd_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_f0b772d80f2f5c4dd2860696c989cfdd_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:5056
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 3.4MB
- SHA256 30addfe070b25d10803032efdd3783a3689eac7277bddab3aba2a62640587cb2
- MD5 b8a7aa4826dee2b3b51bee8d4036728f
- SHA1 adc99633c6c12fd9154b20aee7f64973a32eb37f
- SHA512 8791119c58725b867b24c461ef5a006a09b58325fd73937841881d4300250ab93a45b4570688f448acd080c25bd95b99df3865d7d6521a28b1a03b7ae2f8cf17
- SSDEEP 49152:uR/ZFIjBzT1CIdSPHf0f/ZFIjBzGAyGs+Q7uOZzNvBLEdfA:uR/ZFIjBzldUfs/ZFIjBz7jSZDZ
- TLSH T1F8F55C6F68A611A4DCFAC8305BE9F222FF6334594739A7F31AA091201F25BD1F875712
- MD5 SHA1 SHA512 SSDEEP TLSH