General

  • Target

    85dc37f498f535f3b98e1b0b213c671703b093fb1156be730693161f268a599b

  • Size

    1.8MB

  • Sample

    240604-1df54scb4t

  • MD5

    b7a957e443f918c52924b35675267d4c

  • SHA1

    f2fcdba4dc26da2f17633f85d43244c8f473ae40

  • SHA256

    85dc37f498f535f3b98e1b0b213c671703b093fb1156be730693161f268a599b

  • SHA512

    fd67d70b83fdd5d53d223cb232e247ce862b9ca9cabbae4f26637adab0a2310265b8169d5d2b1b71065d95c4096c796dfc0b5f4e259d94eacef01b3f68b6dcb6

  • SSDEEP

    24576:l6z6AnPq5iak02HkPYaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4kPYa8aesY3Ot4N7G/IeUAtK

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      85dc37f498f535f3b98e1b0b213c671703b093fb1156be730693161f268a599b

    • Size

      1.8MB

    • MD5

      b7a957e443f918c52924b35675267d4c

    • SHA1

      f2fcdba4dc26da2f17633f85d43244c8f473ae40

    • SHA256

      85dc37f498f535f3b98e1b0b213c671703b093fb1156be730693161f268a599b

    • SHA512

      fd67d70b83fdd5d53d223cb232e247ce862b9ca9cabbae4f26637adab0a2310265b8169d5d2b1b71065d95c4096c796dfc0b5f4e259d94eacef01b3f68b6dcb6

    • SSDEEP

      24576:l6z6AnPq5iak02HkPYaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4kPYa8aesY3Ot4N7G/IeUAtK

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks