Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
31/05/2026, 07:55
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-05-31_c0818c6fd3ab4c9075ea4592a39d621d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-31_c0818c6fd3ab4c9075ea4592a39d621d_cryptolocker_elex.exe
Resource
win11-20260513-en
6 signatures
150 seconds
General
- Target 2026-05-31_c0818c6fd3ab4c9075ea4592a39d621d_cryptolocker_elex.exe
- Size 53KB
- Sample260531-jsjfcaew9k
- SHA256 aa4da3823665a69f9f990216d0ff1d17adb09c0c2de7b4561cb84b7fb69eabb4
- MD5 c0818c6fd3ab4c9075ea4592a39d621d
- SHA1 daeae1176b70f38a3055bf7f912d18bab06f64e5
- SHA512 9ea2e079b826ac176a9d3f6970dbdbc9c9e2c3c4bebfd8db415059e74e46e5f22932dd6b89491ea149f7e524f6c4441ac13f6bd30bc645e80274405048f7537f
- SSDEEP 1536:Z6QFElP6n+gMQMOtEvwDpjyaYaFAeG/Y8V:Z6a+pOtEvwDpjv9C
- TLSH T158331F386FD51A72E377CAB585F682C3B936B8237822990D50CE17414C33B56EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0013000000025ad8-12.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x0013000000025ad8-12.dat CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 4876 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 2026-05-31_c0818c6fd3ab4c9075ea4592a39d621d_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 3528 wrote to memory of 4876 3528 2026-05-31_c0818c6fd3ab4c9075ea4592a39d621d_cryptolocker_elex.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-31_c0818c6fd3ab4c9075ea4592a39d621d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-31_c0818c6fd3ab4c9075ea4592a39d621d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3528 -
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:4876
-
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 0cce4ba10a288331e0a7708f004d68de570518d019d23a5e725775121e2a4295
- MD5 ea199c80c35b8aaa8e5631b64cba57e6
- SHA1 d6fb368755d7a76b638cfc65b0e64a752d369034
- SHA512 9ebcfc91a688a61b1672d0afd74d7d673ffd75dba81439283234b48b5777c6c5f935f096627467d8accd901fd25c41a3a0d516867c6cd23cd35d5833bf0bcf3f
- SSDEEP 1536:Z6QFElP6n+gMQMOtEvwDpjyaYaFAeG/Y882:Z6a+pOtEvwDpjv9w
- TLSH T184331F386FD51A72E377CAB585F682C3B936B8237822990D50CE17414C33B56EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH