Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
01/06/2024, 18:18
General
- Target 58d1d05585eafcc3e26274ec14a688647233c18df08aa64847c05cb209201c80.exe
- Size 2.0MB
- Sample240601-wxvemabe36
- SHA256 58d1d05585eafcc3e26274ec14a688647233c18df08aa64847c05cb209201c80
Malware Config
Extracted
-
stealc
Extracted
-
vidar
-
https://t.me/ta904ek
-
https://steamcommunity.com/profiles/76561199695752269
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
- Detect Vidar Stealer 8 IoCs
- Stealc
Stealc is an infostealer written in C++.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- 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 1 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\58d1d05585eafcc3e26274ec14a688647233c18df08aa64847c05cb209201c80.exe"C:\Users\Admin\AppData\Local\Temp\58d1d05585eafcc3e26274ec14a688647233c18df08aa64847c05cb209201c80.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat4788.tmpC:\Users\Admin\AppData\Local\Temp\kat4788.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
kat4788.tmp
memory/872-8-0x0000000000400000-0x0000000000649000-memory.dmp
memory/872-10-0x0000000000400000-0x0000000000649000-memory.dmp
memory/872-4-0x0000000000400000-0x0000000000649000-memory.dmp
memory/872-22-0x0000000000400000-0x0000000000649000-memory.dmp
memory/872-23-0x0000000000400000-0x0000000000649000-memory.dmp
memory/872-25-0x000000001B7A0000-0x000000001B9FF000-memory.dmp
memory/872-40-0x0000000000400000-0x0000000000649000-memory.dmp
memory/872-41-0x0000000000400000-0x0000000000649000-memory.dmp
memory/1216-0-0x00000000007D0000-0x00000000007D1000-memory.dmp
memory/1216-1-0x00000000040B0000-0x00000000041FC000-memory.dmp
memory/1216-9-0x0000000000400000-0x0000000000614000-memory.dmp