Analysis
- max time kernel
148s - max time network
133s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/08/2026, 06:21
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-01_bb85f42f012e9c1e007ac14b33cd3c6f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_bb85f42f012e9c1e007ac14b33cd3c6f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-01_bb85f42f012e9c1e007ac14b33cd3c6f_cryptolocker_elex.exe
- Size 60KB
- Sample260801-g4krfazdpc
- SHA256 97b5ef2ddbc9032b6a172f16293baaf9429ba3dcccf0ef2d8b0fde6141cbb7ec
- MD5 bb85f42f012e9c1e007ac14b33cd3c6f
- SHA1 863cd0925fff8281f3844288a060aef8699a2e3e
- SHA512 a7b18dd7b61c0e748e68031cf2559dbf664fde3ded20af3f798626b8ad1774697dedd820af6af4df0532359c8d953d4c093686f61d0af4e93cad229674527116
- SSDEEP 768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/Y10Y/YMsq:V6QFElP6n+gMQMOtEvwDpjQGYQbq
- TLSH T17A5319736BC50D63D89347B188BBC633A117BD69133186CF658DFB069A33286A671D0A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x001200000001b303-11.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x001200000001b303-11.dat CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 4556 asih.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 2026-08-01_bb85f42f012e9c1e007ac14b33cd3c6f_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5000 wrote to memory of 4556 5000 2026-08-01_bb85f42f012e9c1e007ac14b33cd3c6f_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_bb85f42f012e9c1e007ac14b33cd3c6f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_bb85f42f012e9c1e007ac14b33cd3c6f_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4556
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\asih.exe
- Size 60KB
- SHA256 3ab173b82e28094b6d5a8e54a57710ecd1ee3c2134a3132a6501844a1f0d5f15
- MD5 8c9a0f89898765c84c7368366942a49b
- SHA1 6487b769bc5f5629a2042d2177b807ae81dfe074
- SHA512 a9352777ecd1563207d4ab782961b2fefb399d04e8e404c1d1695340f73f4ed3124630d07eb6cc439863775695f2b3a5649e58f161f31d4adc9151b25c415498
- SSDEEP 768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/Y10Y/YMsL:V6QFElP6n+gMQMOtEvwDpjQGYQbL
- TLSH T14A5319736BC50D63D89347B188FBC633A517BD69133186CF658DFB069A33282A671D0A
- MD5 SHA1 SHA512 SSDEEP TLSH