Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/08/2026, 09:13
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_a05a967dccfeef165eb524c561de8009_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_a05a967dccfeef165eb524c561de8009_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_a05a967dccfeef165eb524c561de8009_cryptolocker_elex.exe
- Size 27KB
- Sample260822-k6qbgsshje
- SHA256 41d65c729acf8a8c25a06a19b63d37fe181b7029220380ad5cbe7d70fd8fee51
- MD5 a05a967dccfeef165eb524c561de8009
- SHA1 924cf18561d71085c68e0c4288872889b1da3c1c
- SHA512 6d969c2f2081fb6db25dea43567f857bd714e9422fbf5f81528212c6f968e487cbd285b070d5223bc524b1746c351b69cb4a79c4dbee7d0ec443d3a031da5f58
- SSDEEP 384:b674uGLLQRcsdeQ72ngEr4K7YmE8j60payjfjDnHnSigE:b674zYcgT/Ekd0cqfjzH/r
- TLSH T17DC23B357BE73CA1E13B5FB015FBA042797BBC113A38484EACCF7358D972691A84244A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/2564-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4864 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 2026-08-21_a05a967dccfeef165eb524c561de8009_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 2564 wrote to memory of 4864 2564 2026-08-21_a05a967dccfeef165eb524c561de8009_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_a05a967dccfeef165eb524c561de8009_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_a05a967dccfeef165eb524c561de8009_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2564 -
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:4864
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 27KB
- SHA256 629e6445b3f9ab94370649ddb5811790a5a7800b125d7e38363015a0eb5904e9
- MD5 26a557f79ddddf3ca3d984d9fc5e4c08
- SHA1 84998ff65cb9ff569617ccd85f52aacf70401107
- SHA512 c0e9ee768f77d99b4083dee33883002ed45ad36d90ca4f3ddcaa86d12688cf4e4dd508c1e68f3ac7fb20715c0aaee800830935b28917d92b0f821e3e516a9562
- SSDEEP 384:b674uGLLQRcsdeQ72ngEr4K7YmE8j60payjfjDnHnSigj:b674zYcgT/Ekd0cqfjzH/E
- TLSH T1E8C23B347BE73CA1E17B5FB015FBA042797BBC513A38484EACCF7358C972691A84254A
- MD5 SHA1 SHA512 SSDEEP TLSH