Analysis
- max time kernel
38s - max time network
48s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
05/07/2024, 17:20
General
- Target software.exe
- Size 5.5MB
- Sample240705-vwdj2sscll
- SHA256 83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3
Malware Config
Extracted
-
vidar
-
https://t.me/bu77un
-
https://steamcommunity.com/profiles/76561199730044335
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1
Signatures
- Detect Vidar Stealer 6 IoCs
- Stealc
Stealc is an infostealer written in C++.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\software.exe"C:\Users\Admin\AppData\Local\Temp\software.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" & rd /s /q "C:\ProgramData\FCGIJDBAFCBA" & exit3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1832-29-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-49-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-2-0x0000000005C60000-0x0000000005CFC000-memory.dmp
memory/1832-3-0x0000000074F90000-0x0000000075741000-memory.dmp
memory/1832-4-0x0000000005D00000-0x0000000005DE4000-memory.dmp
memory/1832-5-0x0000000005AF0000-0x0000000005B0C000-memory.dmp
memory/1832-11-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-65-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-63-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-66-0x0000000074F90000-0x0000000075741000-memory.dmp
memory/1832-59-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-57-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-55-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-25-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-51-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-27-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-47-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-45-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-43-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-39-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-37-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-35-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-1-0x0000000000B00000-0x000000000107A000-memory.dmp
memory/1832-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp
memory/1832-53-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-23-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-21-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-19-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-17-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-15-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-9-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-7-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-6-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-61-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-41-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-33-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-31-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-13-0x0000000005AF0000-0x0000000005B05000-memory.dmp
memory/1832-72-0x0000000074F90000-0x0000000075741000-memory.dmp
memory/3564-69-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3564-67-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3564-71-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3564-73-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3564-74-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3564-76-0x0000000000400000-0x0000000000648000-memory.dmp