General

  • Target

    b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d

  • Size

    2.4MB

  • Sample

    240601-zwlymseh71

  • MD5

    6d9df364892d88badeb84fd95d5dc5a1

  • SHA1

    f719e48bea82d2db4ba04a027e18e2945339eb1d

  • SHA256

    b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d

  • SHA512

    6175ad637569d57728a1cb15182c6970b8274ed27fd9c8ced2d5364e25075d1df223e46f94fb917a51156be18f80ae6eff37245781193fafca343b940f1cfe5e

  • SSDEEP

    49152:wQc81KnB/a/hNT/dRYa8aesY3Ot4N7G/:wDta/hNT/dRn0etD/

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/ta904ek

https://steamcommunity.com/profiles/76561199695752269

Attributes
  • user_agent

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

Targets

    • Target

      b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d

    • Size

      2.4MB

    • MD5

      6d9df364892d88badeb84fd95d5dc5a1

    • SHA1

      f719e48bea82d2db4ba04a027e18e2945339eb1d

    • SHA256

      b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d

    • SHA512

      6175ad637569d57728a1cb15182c6970b8274ed27fd9c8ced2d5364e25075d1df223e46f94fb917a51156be18f80ae6eff37245781193fafca343b940f1cfe5e

    • SSDEEP

      49152:wQc81KnB/a/hNT/dRYa8aesY3Ot4N7G/:wDta/hNT/dRn0etD/

    • 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