General

  • Target

    6b65cba2774d3a4de74304dfbeec59bde59a706fbceca719d4c1c0c9c5f1c1c7

  • Size

    1.6MB

  • Sample

    240612-des5qszaqb

  • MD5

    1dd5f138bb3a36da43ea6d84987e3ae4

  • SHA1

    d35028143b7f752b9fec78fc31100add7a30ddce

  • SHA256

    6b65cba2774d3a4de74304dfbeec59bde59a706fbceca719d4c1c0c9c5f1c1c7

  • SHA512

    301bd449dee581c56396fb65e415b8819f1f6b85b5628676f2d6c22642e9cca5a9d7b9d17649408c25affe37909988f9383fac52a03ff65d36503fcbdb0cbf4d

  • SSDEEP

    24576:spM5863IGfTAVpalB4UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B4UkxVVChjHZQs

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

      6b65cba2774d3a4de74304dfbeec59bde59a706fbceca719d4c1c0c9c5f1c1c7

    • Size

      1.6MB

    • MD5

      1dd5f138bb3a36da43ea6d84987e3ae4

    • SHA1

      d35028143b7f752b9fec78fc31100add7a30ddce

    • SHA256

      6b65cba2774d3a4de74304dfbeec59bde59a706fbceca719d4c1c0c9c5f1c1c7

    • SHA512

      301bd449dee581c56396fb65e415b8819f1f6b85b5628676f2d6c22642e9cca5a9d7b9d17649408c25affe37909988f9383fac52a03ff65d36503fcbdb0cbf4d

    • SSDEEP

      24576:spM5863IGfTAVpalB4UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B4UkxVVChjHZQs

    • 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 Matrix ATT&CK v13

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks