General

  • Target

    3faddb3921d747eb7333d9c4e2194d5990b9f2bf6fb24ed48ca4e1661e25376c

  • Size

    2.1MB

  • Sample

    240625-lcf2dsvamk

  • MD5

    2acb812b9a615fb6f8e003716c90eab9

  • SHA1

    9b24528da98d92bd0d860a2f91f445e117ad4415

  • SHA256

    3faddb3921d747eb7333d9c4e2194d5990b9f2bf6fb24ed48ca4e1661e25376c

  • SHA512

    1129449406ad0cfce4b929ededc4ae2efc0810c25ac917cdfcf4257dccead85cfff4978f0663b80a86c2af9205aae8d856ed2b3eca70dc75e0a4f6a1487271cd

  • SSDEEP

    24576:cC/gyrgOo5VvmUfq+Zc1Fsuqf9sqUfMxVVtes12FxwojKr98YGeGGHzqqikY+rPN:c3xbZcjHqUkxVVChjHZQHzqZ+rPlV

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      3faddb3921d747eb7333d9c4e2194d5990b9f2bf6fb24ed48ca4e1661e25376c

    • Size

      2.1MB

    • MD5

      2acb812b9a615fb6f8e003716c90eab9

    • SHA1

      9b24528da98d92bd0d860a2f91f445e117ad4415

    • SHA256

      3faddb3921d747eb7333d9c4e2194d5990b9f2bf6fb24ed48ca4e1661e25376c

    • SHA512

      1129449406ad0cfce4b929ededc4ae2efc0810c25ac917cdfcf4257dccead85cfff4978f0663b80a86c2af9205aae8d856ed2b3eca70dc75e0a4f6a1487271cd

    • SSDEEP

      24576:cC/gyrgOo5VvmUfq+Zc1Fsuqf9sqUfMxVVtes12FxwojKr98YGeGGHzqqikY+rPN:c3xbZcjHqUkxVVChjHZQHzqZ+rPlV

    • 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

    • Loads dropped DLL

    • 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.

    • 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