Analysis
- max time kernel
148s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
19/05/2026, 00:52
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe
Resource
win11-20260513-en
6 signatures
150 seconds
General
- Target 2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe
- Size 53KB
- Sample260519-a79fmsax9p
- SHA256 4cd2bd0fbfb79f53680fe073d2898687816a8e2a97d10759be67ca273b61ee2e
- MD5 da235a7f282eb4bce466a3581c6cacdc
- SHA1 46dcb27b5aaf29eb09dafafd952f42bec9f35c8f
- SHA512 0152021a0bf495e7adeede41d160475e2fff5753bf5497fcbbf79be02485471a43ccc53edba97408d4209a3b32d908344056f1f9384342438345e1e3e2841d1a
- SSDEEP 1536:Z6QFElP6n+gMQMOtEvwDpjyaYaFAeG/Y8l:Z6a+pOtEvwDpjv96
- TLSH T114331F386FD51A72E377CAB585F682C3B936B8237822990D50CE17414C33B56EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024193-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024193-12.dat CryptoLocker_set1 - Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation asih.exe Key value queried \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation 2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 368 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 2026-05-19_da235a7f282eb4bce466a3581c6cacdc_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 4148 wrote to memory of 368 4148 2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-19_da235a7f282eb4bce466a3581c6cacdc_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4148 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:368
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\asih.exe
- Size 53KB
- SHA256 3a6d708a7c078076f43eae2cc1bfe37aba6e01ff1f554a7086c287e8be36ef52
- MD5 57ae236f294ca32bbcc0f39f7d6b8262
- SHA1 ebb118f793abf8c5fdbba05bf55d770c172d7777
- SHA512 9781d5b487495275bdb1964fef2c164dbfbe5d2f48d00ef8b5352156d42ba22fd3121ae567a93c04b596b1b35d295ac878c722512266154a802c3581e9435b86
- SSDEEP 1536:Z6QFElP6n+gMQMOtEvwDpjyaYaFAeG/Y8vP:Z6a+pOtEvwDpjv9WP
- TLSH T10C331F386FD51A72E377CAB585F682C3B936B8233822990D50CE17414C33B56EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH