General

  • Target

    f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755

  • Size

    1.8MB

  • Sample

    240603-26l3hadd42

  • MD5

    f0ccfd158ab6afc054539e1ab24c9f56

  • SHA1

    020a7e8bd75b484637fc7cc64d208893dda567ec

  • SHA256

    f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755

  • SHA512

    a11c15a84809d34be113377a0ccc86003f3cf0a7b041e36d49c8d6423cba6f21415e889f9332fa5a982c20b7eeea57898bf2b6bf6feaeca4b49b89a77b54f4b7

  • SSDEEP

    24576:W7YfUB7F1931tb5YaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtb5Ya8aesY3Ot4N7G/

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

      f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755

    • Size

      1.8MB

    • MD5

      f0ccfd158ab6afc054539e1ab24c9f56

    • SHA1

      020a7e8bd75b484637fc7cc64d208893dda567ec

    • SHA256

      f1f037b2393291f7fce079a0875756e613aa2527cff0649c5f302f81b63b6755

    • SHA512

      a11c15a84809d34be113377a0ccc86003f3cf0a7b041e36d49c8d6423cba6f21415e889f9332fa5a982c20b7eeea57898bf2b6bf6feaeca4b49b89a77b54f4b7

    • SSDEEP

      24576:W7YfUB7F1931tb5YaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtb5Ya8aesY3Ot4N7G/

    • 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