General

  • Target

    4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196

  • Size

    2.2MB

  • Sample

    240630-fm7dfaxdqq

  • MD5

    decf323d9dfc1e720555c52139b567ec

  • SHA1

    ca2c4a3d08238089d75f38da6d3697ec671dfca7

  • SHA256

    4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196

  • SHA512

    0e2ff1169fa4ff0c9d11b1ad30e5b31d871d3f0550942301d62421ad2502f8d1cc16cdfd0e6877ada90f3c202bdf75387ba649332d6361642bba8c9d7760e726

  • SSDEEP

    49152:qpjNvr9ySAOmw4pHHO+SASagXkJr4MDkUwm:qpjNp7p4pHH8n5A

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

      4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196

    • Size

      2.2MB

    • MD5

      decf323d9dfc1e720555c52139b567ec

    • SHA1

      ca2c4a3d08238089d75f38da6d3697ec671dfca7

    • SHA256

      4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196

    • SHA512

      0e2ff1169fa4ff0c9d11b1ad30e5b31d871d3f0550942301d62421ad2502f8d1cc16cdfd0e6877ada90f3c202bdf75387ba649332d6361642bba8c9d7760e726

    • SSDEEP

      49152:qpjNvr9ySAOmw4pHHO+SASagXkJr4MDkUwm:qpjNp7p4pHH8n5A

    • 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