General

  • Target

    ad1f4434b2a86883af4db8b52fdc46d311271f1763baa8cea6e4baecc769b99e

  • Size

    1.6MB

  • Sample

    240612-g4sr2ssgll

  • MD5

    38be0eee237487d8e0a1ff533c9d1376

  • SHA1

    69b4aa35c13eb1164e0cb2dbc9bebf51e02c9dbf

  • SHA256

    ad1f4434b2a86883af4db8b52fdc46d311271f1763baa8cea6e4baecc769b99e

  • SHA512

    6b4f164ee8ca06ce4eb3189838776e0499f331868a132ae0ea7283e36462256dc4fb4092d59f1a960fc7b32969ef300441147779e7fc363e9ab703812eaf0d67

  • SSDEEP

    24576:spM5863IGfTAVpalB5UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B5UkxVVChjHZQs

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

      ad1f4434b2a86883af4db8b52fdc46d311271f1763baa8cea6e4baecc769b99e

    • Size

      1.6MB

    • MD5

      38be0eee237487d8e0a1ff533c9d1376

    • SHA1

      69b4aa35c13eb1164e0cb2dbc9bebf51e02c9dbf

    • SHA256

      ad1f4434b2a86883af4db8b52fdc46d311271f1763baa8cea6e4baecc769b99e

    • SHA512

      6b4f164ee8ca06ce4eb3189838776e0499f331868a132ae0ea7283e36462256dc4fb4092d59f1a960fc7b32969ef300441147779e7fc363e9ab703812eaf0d67

    • SSDEEP

      24576:spM5863IGfTAVpalB5UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B5UkxVVChjHZQs

    • 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 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 Matrix ATT&CK v13

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Tasks