Analysis
- max time kernel
98s - max time network
99s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
15/10/2024, 14:07
General
- Target 937eb23c0c68a34501be029aa11106e47cb2a3642de860a21dcc47983520e99cN.exe
- Size 1023KB
- Sample241015-rfa77sycnc
- SHA256 937eb23c0c68a34501be029aa11106e47cb2a3642de860a21dcc47983520e99c
Malware Config
Extracted
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vidar
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11.1
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191375c1805c0d5109ea6297d63371b2
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https://steamcommunity.com/profiles/76561199786602107
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https://t.me/lpnjoke
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0
Signatures
- Detect Vidar Stealer 14 IoCs
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\937eb23c0c68a34501be029aa11106e47cb2a3642de860a21dcc47983520e99cN.exe"C:\Users\Admin\AppData\Local\Temp\937eb23c0c68a34501be029aa11106e47cb2a3642de860a21dcc47983520e99cN.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\937eb23c0c68a34501be029aa11106e47cb2a3642de860a21dcc47983520e99cN.exe"C:\Users\Admin\AppData\Local\Temp\937eb23c0c68a34501be029aa11106e47cb2a3642de860a21dcc47983520e99cN.exe"2⤵
- Checks computer location settings
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BFIDGHDBAFIJ" & exit3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
4Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
nss3.dll
memory/1468-0-0x0000000000CBA000-0x0000000000CBB000-memory.dmp
memory/4824-24-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-33-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-14-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-15-0x0000000024D40000-0x0000000024F9F000-memory.dmp
memory/4824-23-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-4-0x0000000000BC0000-0x0000000000CC4000-memory.dmp
memory/4824-32-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-13-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-49-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-50-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-3-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-72-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-1-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-73-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-80-0x0000000000400000-0x0000000000676000-memory.dmp
memory/4824-81-0x0000000000400000-0x0000000000676000-memory.dmp