General

  • Target

    5564aef0f869a41b74c2da9c052924e8c5d2e1617340822b3cd47e02591f0b24

  • Size

    730KB

  • Sample

    210722-b53nl7wqas

  • MD5

    7836a0a79a3f3665781b91468652df7e

  • SHA1

    cbe4961e4736493a300fe3f4acebf2bf0660174e

  • SHA256

    5564aef0f869a41b74c2da9c052924e8c5d2e1617340822b3cd47e02591f0b24

  • SHA512

    1ee6aeb35e29825ae67fd8028fbf4087b1f0a654a806f51c7baefb2e947f4bdd3e0de714297354b52fc9ba7032c150edf3863c463c545930986a06a05b090aa1

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

517

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      5564aef0f869a41b74c2da9c052924e8c5d2e1617340822b3cd47e02591f0b24

    • Size

      730KB

    • MD5

      7836a0a79a3f3665781b91468652df7e

    • SHA1

      cbe4961e4736493a300fe3f4acebf2bf0660174e

    • SHA256

      5564aef0f869a41b74c2da9c052924e8c5d2e1617340822b3cd47e02591f0b24

    • SHA512

      1ee6aeb35e29825ae67fd8028fbf4087b1f0a654a806f51c7baefb2e947f4bdd3e0de714297354b52fc9ba7032c150edf3863c463c545930986a06a05b090aa1

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks