General

  • Target

    2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4

  • Size

    2.2MB

  • Sample

    240630-zwdx2ayemj

  • MD5

    2c96eb8a35b8a369631d1bf61caf234c

  • SHA1

    2e3510a6250b656d4dbcec4c0d8cdc8410de9449

  • SHA256

    2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4

  • SHA512

    30189986be9676302707e64904e08ea432af1affae62004b008c4f216b983c51599b4c81b5662e98078cb20a53ff2b0719f844f1e6ca751bc1d4971c5f79ffdc

  • SSDEEP

    24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXDmU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPB21tuuIeNHYGY0LzjsJxK

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

      2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4

    • Size

      2.2MB

    • MD5

      2c96eb8a35b8a369631d1bf61caf234c

    • SHA1

      2e3510a6250b656d4dbcec4c0d8cdc8410de9449

    • SHA256

      2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4

    • SHA512

      30189986be9676302707e64904e08ea432af1affae62004b008c4f216b983c51599b4c81b5662e98078cb20a53ff2b0719f844f1e6ca751bc1d4971c5f79ffdc

    • SSDEEP

      24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXDmU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPB21tuuIeNHYGY0LzjsJxK

    • 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