General

  • Target

    930a2b3ec775ca08f4d4232379f1cba573990f5870b1af7268e8e48715945d59

  • Size

    1.7MB

  • Sample

    240611-aq45laxcjk

  • MD5

    1af520f803f0a43290edee724ccf61d9

  • SHA1

    b300d8ccd46d6f8dd22aaa8082770a359edc26d9

  • SHA256

    930a2b3ec775ca08f4d4232379f1cba573990f5870b1af7268e8e48715945d59

  • SHA512

    174f534c7e7c5b6133c344cc789843cf87cd7aa31ffc070ca74ce772f27e78107c30fc915011a1434a337b0792465363a999a17dd24bfe864194c9bcafed6050

  • SSDEEP

    24576:JoZYQkmdrf+kUfMxVVtes12FxwojKr98YGeGG9iH:JPYxJUkxVVChjHZQsH

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

      930a2b3ec775ca08f4d4232379f1cba573990f5870b1af7268e8e48715945d59

    • Size

      1.7MB

    • MD5

      1af520f803f0a43290edee724ccf61d9

    • SHA1

      b300d8ccd46d6f8dd22aaa8082770a359edc26d9

    • SHA256

      930a2b3ec775ca08f4d4232379f1cba573990f5870b1af7268e8e48715945d59

    • SHA512

      174f534c7e7c5b6133c344cc789843cf87cd7aa31ffc070ca74ce772f27e78107c30fc915011a1434a337b0792465363a999a17dd24bfe864194c9bcafed6050

    • SSDEEP

      24576:JoZYQkmdrf+kUfMxVVtes12FxwojKr98YGeGG9iH:JPYxJUkxVVChjHZQsH

    • 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