General

  • Target

    4c6b59d26a2a995a788b021f1f30f764.exe

  • Size

    606KB

  • Sample

    210923-pbqe8aacel

  • MD5

    4c6b59d26a2a995a788b021f1f30f764

  • SHA1

    b6d94ef132caed5c2b01d7b63a1788647c9a4042

  • SHA256

    0f0da1d14f83ff61c448df9161c01d1ee11cf4dccbbc48df79fff89f2fd18454

  • SHA512

    d429e2166ba853f500d142ee943e72ade83c1ef20522563f911551303b40220821b9c7b73b9124c05b0e116960c90872fbe94cafec3ac8c2eac8a3f344f0c81a

Malware Config

Extracted

Family

vidar

Version

41

Botnet

1008

C2

https://mas.to/@killern0

Attributes
  • profile_id

    1008

Targets

    • Target

      4c6b59d26a2a995a788b021f1f30f764.exe

    • Size

      606KB

    • MD5

      4c6b59d26a2a995a788b021f1f30f764

    • SHA1

      b6d94ef132caed5c2b01d7b63a1788647c9a4042

    • SHA256

      0f0da1d14f83ff61c448df9161c01d1ee11cf4dccbbc48df79fff89f2fd18454

    • SHA512

      d429e2166ba853f500d142ee943e72ade83c1ef20522563f911551303b40220821b9c7b73b9124c05b0e116960c90872fbe94cafec3ac8c2eac8a3f344f0c81a

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • Vidar Stealer

    • Downloads MZ/PE file

    • Deletes itself

    • Loads dropped DLL

    • 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

    • Checks installed software on the system

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

MITRE ATT&CK Enterprise v6

Tasks