5452492faf9dddebb689c54a2f2d932de2a2b6e17e03d1c2c91f3afdc89ed164

General
Target

5452492faf9dddebb689c54a2f2d932de2a2b6e17e03d1c2c91f3afdc89ed164

Size

781KB

Sample

211021-skv9lsbchq

Score
10 /10
MD5

f510384bacc30d8c4fb9e7b69d65b185

SHA1

56f69e4ccafc32d278781c3494a43e132f63868b

SHA256

5452492faf9dddebb689c54a2f2d932de2a2b6e17e03d1c2c91f3afdc89ed164

SHA512

2a1dedc0bfa5a7520d1842ec39a964ab9d34625efef22be315720a260ac695832a862ab6357f7d9490da7308fb52c898592e9b04f1f7006f31c4b71bd1c4a333

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/fhsgtsspen6

Targets
Target

5452492faf9dddebb689c54a2f2d932de2a2b6e17e03d1c2c91f3afdc89ed164

MD5

f510384bacc30d8c4fb9e7b69d65b185

Filesize

781KB

Score
10 /10
SHA1

56f69e4ccafc32d278781c3494a43e132f63868b

SHA256

5452492faf9dddebb689c54a2f2d932de2a2b6e17e03d1c2c91f3afdc89ed164

SHA512

2a1dedc0bfa5a7520d1842ec39a964ab9d34625efef22be315720a260ac695832a862ab6357f7d9490da7308fb52c898592e9b04f1f7006f31c4b71bd1c4a333

Tags

Signatures

  • Detected Djvu ransomware

  • Djvu Ransomware

    Description

    Ransomware which is a variant of the STOP family.

    Tags

  • Vidar

    Description

    Vidar is an infostealer based on Arkei stealer.

    Tags

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

    Description

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    Tags

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

    Description

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

    Tags

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

    Description

    suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    Tags

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

    Description

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

    Tags

  • Vidar Stealer

    Tags

  • Downloads MZ/PE file

  • Executes dropped EXE

  • Loads dropped DLL

  • Modifies file permissions

    Tags

    TTPs

    File Permissions Modification
  • Reads user/profile data of web browsers

    Description

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

    Tags

    TTPs

    Data from Local System Credentials in Files
  • Accesses 2FA software files, possible credential harvesting

    Tags

    TTPs

    Data from Local System Credentials in Files
  • Accesses cryptocurrency files/wallets, possible credential harvesting

    Tags

    TTPs

    Data from Local System Credentials in Files
  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup Folder Modify Registry
  • Checks installed software on the system

    Description

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

    Tags

    TTPs

    Query Registry
  • Looks up external IP address via web service

    Description

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

  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Execution
      Exfiltration
        Impact
          Initial Access
            Lateral Movement
              Privilege Escalation