General

  • Target

    25e6a5e9b46814144bda0adff7e088742f2d974ff822ec931aac09ec8e3a3b14

  • Size

    2.2MB

  • Sample

    240701-bk6lxa1gpd

  • MD5

    19ad09d3efb079eaf0231019ece5d3fb

  • SHA1

    cdda0b9f18b388be6a4d33f687d687cb8238809a

  • SHA256

    25e6a5e9b46814144bda0adff7e088742f2d974ff822ec931aac09ec8e3a3b14

  • SHA512

    fb4b276b931e9993e7e7c325e14bb8be0369e5984c7e98e32a349150ed1a3ea5f74e75c78864f59c09a557bb7274cb515c4664cb1d957c66727bdbf9e03f5dac

  • SSDEEP

    24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXXhU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPO21tuuIeNHYGY0LzjsJxK

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

      25e6a5e9b46814144bda0adff7e088742f2d974ff822ec931aac09ec8e3a3b14

    • Size

      2.2MB

    • MD5

      19ad09d3efb079eaf0231019ece5d3fb

    • SHA1

      cdda0b9f18b388be6a4d33f687d687cb8238809a

    • SHA256

      25e6a5e9b46814144bda0adff7e088742f2d974ff822ec931aac09ec8e3a3b14

    • SHA512

      fb4b276b931e9993e7e7c325e14bb8be0369e5984c7e98e32a349150ed1a3ea5f74e75c78864f59c09a557bb7274cb515c4664cb1d957c66727bdbf9e03f5dac

    • SSDEEP

      24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXXhU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPO21tuuIeNHYGY0LzjsJxK

    • 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