General

  • Target

    349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c

  • Size

    2.2MB

  • Sample

    240630-3ax1kasbpj

  • MD5

    97a9176b3a22b5fcc585fd4499dba2f3

  • SHA1

    6628399d8772d10f5c062e64a3fcb8dd554a010a

  • SHA256

    349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c

  • SHA512

    b264e040eeb49a6bc8030d3d64cd210a58a8f4a74b6dad027989d307db361a548865fb4496cca86fc6a3cd94ae60835387cbc3957e5026c80f86dce5dfd229c3

  • SSDEEP

    24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXfqU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPp21tuuIeNHYGY0LzjsJxK

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

      349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c

    • Size

      2.2MB

    • MD5

      97a9176b3a22b5fcc585fd4499dba2f3

    • SHA1

      6628399d8772d10f5c062e64a3fcb8dd554a010a

    • SHA256

      349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c

    • SHA512

      b264e040eeb49a6bc8030d3d64cd210a58a8f4a74b6dad027989d307db361a548865fb4496cca86fc6a3cd94ae60835387cbc3957e5026c80f86dce5dfd229c3

    • SSDEEP

      24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXfqU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPp21tuuIeNHYGY0LzjsJxK

    • 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