General

  • Target

    nottheactualsoftwareiwanttotest.zip

  • Size

    22.6MB

  • Sample

    241102-smfxps1jcq

  • MD5

    395c0af1d4f7e556d341a4d0d230edbe

  • SHA1

    0a7fe98082e026aed44690ccc2d1b8020da65ba2

  • SHA256

    4d018e44351c218cb3a0714fc7d91c08b2bf24dc8d87b5e1cd26a799a7bd20af

  • SHA512

    61427eb84866f784b304e017c8b3c8c98cf180a4d75fd49738c03d3aee187041f23781384626b369eda564c917f86d121f9d4dedb12ac70ade4387606f2bb915

  • SSDEEP

    393216:mbNnIFdAyvA41ICzJgkPi9GqlcX3KfoHgFparDqY0Ib2Py1bpd98lbppy1/dLkOO:mbNnSdAgI81qQKf4ioqfLK1bpX8hpA1e

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

      setup.exe

    • Size

      22.9MB

    • MD5

      fc3f90ab25420ebc544eef678344b3f9

    • SHA1

      f5db3020443e8cb4d7f1f02da54564387561e87e

    • SHA256

      dcd7ecf212b8725d0c68daeb2f0939978a15f90510d0ca776f921183a19530b1

    • SHA512

      a650eee94ef8155c767e8c3a004622c7bf01e1a673b99899baf44aabc065507c8be968208f0fc1e2f97bc957ee0137c76920bc919f425b4d09a9f2665675aa12

    • SSDEEP

      393216:xoprrm1peunqyXIO5gw+tU//6B+3fYv/4TIyM6Gej4vkHpFLbY9N7Bunm/aMOQYQ:eprrWpeYIR66CYvO5Mdh8HpFnY77sn4l

    • Detect Vidar Stealer

    • 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.

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks