Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
03/08/2026, 18:18
General
- Target avast_decryptor_crypt888.exe
- Size 2.7MB
- Sample260803-wxswsshk7y
- SHA256 832ab0be7aa91d3c5ce32c0eee3df0be3ed318e61f65b8e0b0d833578e3eebff
Score
6/10
Malware Config
Signatures
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Drops file in Windows directory 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\avast_decryptor_crypt888.exe"C:\Users\Admin\AppData\Local\Temp\avast_decryptor_crypt888.exe"1⤵
- Enumerates connected drives
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
memory/4124-1-0x0000000000400000-0x00000000006A8000-memory.dmp
memory/4124-6-0x0000000002440000-0x0000000002442000-memory.dmp
memory/4124-9-0x0000000002440000-0x0000000002442000-memory.dmp