General

  • Target

    63c3aff0ea7d4d98bc48d454fc9555eef2889484b789a19dff9916aebd1dd112

  • Size

    2.2MB

  • Sample

    240701-ezdffszamj

  • MD5

    900232062eeb0ddf165752bced356cb2

  • SHA1

    cd50578d1d35f65bad2c87cc6d3a4b94aa3e9b7c

  • SHA256

    63c3aff0ea7d4d98bc48d454fc9555eef2889484b789a19dff9916aebd1dd112

  • SHA512

    8c4435594554b2bab2a19c4ec74d211d77316c04a5c21f33150f5273f6a2e18d9a1be40087a61352e132cecba56753aafb4d9fb3f508a3b34edabd3b89d8e7f1

  • SSDEEP

    24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXPtU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPa21tuuIeNHYGY0LzjsJxK

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

      63c3aff0ea7d4d98bc48d454fc9555eef2889484b789a19dff9916aebd1dd112

    • Size

      2.2MB

    • MD5

      900232062eeb0ddf165752bced356cb2

    • SHA1

      cd50578d1d35f65bad2c87cc6d3a4b94aa3e9b7c

    • SHA256

      63c3aff0ea7d4d98bc48d454fc9555eef2889484b789a19dff9916aebd1dd112

    • SHA512

      8c4435594554b2bab2a19c4ec74d211d77316c04a5c21f33150f5273f6a2e18d9a1be40087a61352e132cecba56753aafb4d9fb3f508a3b34edabd3b89d8e7f1

    • SSDEEP

      24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXPtU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPa21tuuIeNHYGY0LzjsJxK

    • 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