Analysis
- max time kernel
94s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
29/06/2024, 19:21
General
- Target 216de39eee29060012190acb31a641e3d2b510e461122d15f50e2498c0a00713.exe
- Size 2.2MB
- Sample240629-x2z2catfng
- SHA256 216de39eee29060012190acb31a641e3d2b510e461122d15f50e2498c0a00713
Malware Config
Extracted
-
vidar
-
https://t.me/g067n
-
https://steamcommunity.com/profiles/76561199707802586
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
- Detect Vidar Stealer 8 IoCs
- Stealc
Stealc is an infostealer written in C++.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Detect binaries embedding considerable number of MFA browser extension IDs. 4 IoCs
- Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 4 IoCs
- Detects Windows executables referencing non-Windows User-Agents 7 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\216de39eee29060012190acb31a641e3d2b510e461122d15f50e2498c0a00713.exe"C:\Users\Admin\AppData\Local\Temp\216de39eee29060012190acb31a641e3d2b510e461122d15f50e2498c0a00713.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat4834.tmpC:\Users\Admin\AppData\Local\Temp\kat4834.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
kat4834.tmp
memory/1136-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1136-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1136-10-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1136-22-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1136-23-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1136-25-0x0000000020180000-0x00000000203DF000-memory.dmp
memory/1136-40-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1136-41-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2896-0-0x00000000008F0000-0x00000000008F1000-memory.dmp
memory/2896-1-0x0000000004080000-0x0000000004190000-memory.dmp
memory/2896-9-0x0000000000400000-0x0000000000635000-memory.dmp