General

  • Target

    0f4af03d2ba59b5c68066c95b41bfad8.bin

  • Size

    1.6MB

  • Sample

    241103-bc51ea1anp

  • MD5

    ec74a88e7336c385c663af41d0ac008f

  • SHA1

    4418925270446a9b260559521c7e83b395ca8a72

  • SHA256

    639d9cc7ccd1c99f017e0f36af1de422387c58ddd54751200e70e158275ee62a

  • SHA512

    772fbdfaf49774ce03f38ab15f88c7874899f02f211932c4f2740261c1e11d241f77cd665abb006aad475f1baf0d36522a5da38602752895e260e1a20ff0c32c

  • SSDEEP

    49152:Tkl1LH9XNjvYDAfmmGd5b+YDEG/TUiv/HV8gs:Tkl1L3w0DGd9LX/oiv/ml

Malware Config

Extracted

Family

vidar

C2

https://t.me/asg7rd

https://steamcommunity.com/profiles/76561199794498376

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Targets

    • Target

      c263ebdc90fdb0a75d6570f178156c0ba665ac9f846b8172d7835733e5c3de59.exe

    • Size

      1.6MB

    • MD5

      0f4af03d2ba59b5c68066c95b41bfad8

    • SHA1

      ecbb98b5bde92b2679696715e49b2e35793f8f9f

    • SHA256

      c263ebdc90fdb0a75d6570f178156c0ba665ac9f846b8172d7835733e5c3de59

    • SHA512

      ea4de68e9eb4a9b69527a3924783b03b4b78bffc547c53a0ecd74d0bd0b315d312ae2f17313085acd317be1e0d6f9a63e0089a8a20bf9facc5157a9b8bea95a3

    • SSDEEP

      24576:Wa0E71YwbX4e2F4fOfq444sMDF6XR5w5ZVcs5I0wzvZBjQB/CtNJb/zUJH++QLS0:vYwD4e2FkCq/yYB5alxUNJLzyiegcIZ

    • Detect Vidar Stealer

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates processes with tasklist

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks