General

  • Target

    6ec8e5f23df29d3403e2fd478e3788c9ff0b339da3af8ecd977a9a2a9e181453

  • Size

    1.8MB

  • Sample

    240604-amwn2see2x

  • MD5

    55da56d396c86727370bc8a9e4b1b904

  • SHA1

    186507970a55b3d13930860a5044c52cf0f5dd70

  • SHA256

    6ec8e5f23df29d3403e2fd478e3788c9ff0b339da3af8ecd977a9a2a9e181453

  • SHA512

    72d6451debb50454d8ed8bc4eb9adce9aebe0860fc818a20376aa82a0bdeab4fb249efea8401808aedf4d0f48cccd4cd9b0cbe4b6902e8be7939703a5e8fe693

  • SSDEEP

    24576:W7YfUB7F1931tbZYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbZYa8aesY3Ot4N7G/

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

      6ec8e5f23df29d3403e2fd478e3788c9ff0b339da3af8ecd977a9a2a9e181453

    • Size

      1.8MB

    • MD5

      55da56d396c86727370bc8a9e4b1b904

    • SHA1

      186507970a55b3d13930860a5044c52cf0f5dd70

    • SHA256

      6ec8e5f23df29d3403e2fd478e3788c9ff0b339da3af8ecd977a9a2a9e181453

    • SHA512

      72d6451debb50454d8ed8bc4eb9adce9aebe0860fc818a20376aa82a0bdeab4fb249efea8401808aedf4d0f48cccd4cd9b0cbe4b6902e8be7939703a5e8fe693

    • SSDEEP

      24576:W7YfUB7F1931tbZYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbZYa8aesY3Ot4N7G/

    • 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