General

  • Target

    a1f8d06643d6a1f2d9dda4a3858d8f10515642d111065dc4c0dc7e9faaf8a314

  • Size

    1.7MB

  • Sample

    240610-s9w77ssepp

  • MD5

    af7143ddc7d4ec3af264e2fba7168cd5

  • SHA1

    57c85a23e4eb3ab163973cd45bf62f3149547a2b

  • SHA256

    a1f8d06643d6a1f2d9dda4a3858d8f10515642d111065dc4c0dc7e9faaf8a314

  • SHA512

    dbaae7604452db5f4084009d0edb64e124de40f0a20a3806f4fdcc2f56a60de26c3edba983656242eb750d9d1734c9ff54c4f9f467f60567c43e9e8348e974b5

  • SSDEEP

    24576:JoZYQkmdrf+oUfMxVVtes12FxwojKr98YGeGG9iH:JPYxFUkxVVChjHZQsH

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

      a1f8d06643d6a1f2d9dda4a3858d8f10515642d111065dc4c0dc7e9faaf8a314

    • Size

      1.7MB

    • MD5

      af7143ddc7d4ec3af264e2fba7168cd5

    • SHA1

      57c85a23e4eb3ab163973cd45bf62f3149547a2b

    • SHA256

      a1f8d06643d6a1f2d9dda4a3858d8f10515642d111065dc4c0dc7e9faaf8a314

    • SHA512

      dbaae7604452db5f4084009d0edb64e124de40f0a20a3806f4fdcc2f56a60de26c3edba983656242eb750d9d1734c9ff54c4f9f467f60567c43e9e8348e974b5

    • SSDEEP

      24576:JoZYQkmdrf+oUfMxVVtes12FxwojKr98YGeGG9iH:JPYxFUkxVVChjHZQsH

    • 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

    • 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