General

  • Target

    70f9128a112838ef3be75067105aa99c5b94b52209d0263a7cd55f5fa67c589e

  • Size

    1.8MB

  • Sample

    240607-ae8nmseb4w

  • MD5

    a4c41874dfd2a78e9a613dc860387fc8

  • SHA1

    c7eca271c5c7ea7d8b03a49ee0dcfe9231d6541b

  • SHA256

    70f9128a112838ef3be75067105aa99c5b94b52209d0263a7cd55f5fa67c589e

  • SHA512

    990ab73b5659ca41f5c1c78c4e53f92bfc30e0e010276bea4fd8eecc3fc58d7407ed0a2f051bf60b38bcfd952bf526f893c20ba26b6b0e49256fdf125c52a1c0

  • SSDEEP

    24576:l6z6AnPq5iak02Hk9YaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4k9Ya8aesY3Ot4N7G/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

      70f9128a112838ef3be75067105aa99c5b94b52209d0263a7cd55f5fa67c589e

    • Size

      1.8MB

    • MD5

      a4c41874dfd2a78e9a613dc860387fc8

    • SHA1

      c7eca271c5c7ea7d8b03a49ee0dcfe9231d6541b

    • SHA256

      70f9128a112838ef3be75067105aa99c5b94b52209d0263a7cd55f5fa67c589e

    • SHA512

      990ab73b5659ca41f5c1c78c4e53f92bfc30e0e010276bea4fd8eecc3fc58d7407ed0a2f051bf60b38bcfd952bf526f893c20ba26b6b0e49256fdf125c52a1c0

    • SSDEEP

      24576:l6z6AnPq5iak02Hk9YaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4k9Ya8aesY3Ot4N7G/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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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