Analysis
- max time kernel
95s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
25/09/2024, 16:01
General
- Target 3b914f143432c17ca607ba232ba0122f78096dc04dd7ce3d297ed0036f3b1545.exe
- Size 403KB
- Sample240925-tgmzhaxdqa
- SHA256 3b914f143432c17ca607ba232ba0122f78096dc04dd7ce3d297ed0036f3b1545
Malware Config
Extracted
-
vidar
-
11
-
58cd250b15e666e5f72fcf5caa6cb131
-
https://steamcommunity.com/profiles/76561199780418869
-
https://t.me/ae5ed
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0
Signatures
- Detect Vidar Stealer 7 IoCs
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Downloads MZ/PE file
- Reads user/profile data of web browsers 3 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
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- 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.
- 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 10 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3b914f143432c17ca607ba232ba0122f78096dc04dd7ce3d297ed0036f3b1545.exe"C:\Users\Admin\AppData\Local\Temp\3b914f143432c17ca607ba232ba0122f78096dc04dd7ce3d297ed0036f3b1545.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
memory/2636-0-0x00000000752EE000-0x00000000752EF000-memory.dmp
memory/2636-1-0x0000000000450000-0x00000000004B8000-memory.dmp
memory/2636-11-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/2636-37-0x00000000752E0000-0x0000000075A90000-memory.dmp
memory/5004-3-0x0000000000400000-0x0000000000676000-memory.dmp
memory/5004-6-0x0000000000400000-0x0000000000676000-memory.dmp
memory/5004-8-0x0000000000400000-0x0000000000676000-memory.dmp
memory/5004-18-0x0000000000400000-0x0000000000676000-memory.dmp
memory/5004-19-0x0000000000400000-0x0000000000676000-memory.dmp
memory/5004-21-0x0000000022120000-0x000000002237F000-memory.dmp
memory/5004-35-0x0000000000400000-0x0000000000676000-memory.dmp
memory/5004-36-0x0000000000400000-0x0000000000676000-memory.dmp