General

  • Target

    409144d6041557a3a9545dd1dd4d06d9b6fbd736200299a08e33d9a9b4ac3e43

  • Size

    856KB

  • Sample

    211025-db5dlagdgk

  • MD5

    117d5bf618a97ff7409c23945f4786b6

  • SHA1

    fbeb0b3dab380e760040497e588326ad20faa68b

  • SHA256

    409144d6041557a3a9545dd1dd4d06d9b6fbd736200299a08e33d9a9b4ac3e43

  • SHA512

    f4053cbb42320fe4735e3035cf0f6dd39e504fa5ce4ef7ea091604d9f9149cd21933b0a53c5c19118a6b59aff5af81d9f444d77994ff87adcf19701cbf1e884b

Malware Config

Extracted

Family

vidar

Version

41.5

Botnet

517

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    517

Extracted

Family

djvu

C2

http://rlrz.org/lancer

Targets

    • Target

      409144d6041557a3a9545dd1dd4d06d9b6fbd736200299a08e33d9a9b4ac3e43

    • Size

      856KB

    • MD5

      117d5bf618a97ff7409c23945f4786b6

    • SHA1

      fbeb0b3dab380e760040497e588326ad20faa68b

    • SHA256

      409144d6041557a3a9545dd1dd4d06d9b6fbd736200299a08e33d9a9b4ac3e43

    • SHA512

      f4053cbb42320fe4735e3035cf0f6dd39e504fa5ce4ef7ea091604d9f9149cd21933b0a53c5c19118a6b59aff5af81d9f444d77994ff87adcf19701cbf1e884b

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • 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

    • 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