General
Target

ae32c946908ef4757fbe5435f9b8dc2f07c490c94846d4019f821b7908fe7053

Size

826KB

Sample

211020-am5lyshddk

Score
10/10
MD5

ca802a3962404b53ea83d9c5bf837726

SHA1

5f580edcf8f5e6f1ef58cb36d41b4155141bce82

SHA256

ae32c946908ef4757fbe5435f9b8dc2f07c490c94846d4019f821b7908fe7053

SHA512

ef41bc50b5278cc2185391aeebbb34bcb67968d7615bafaa6804d3ed60c6e095649615566f6087908b5dc00d788c490504f4ab9483ac72eb23f84ee287538776

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

ae32c946908ef4757fbe5435f9b8dc2f07c490c94846d4019f821b7908fe7053

MD5

ca802a3962404b53ea83d9c5bf837726

Filesize

826KB

Score
10/10
SHA1

5f580edcf8f5e6f1ef58cb36d41b4155141bce82

SHA256

ae32c946908ef4757fbe5435f9b8dc2f07c490c94846d4019f821b7908fe7053

SHA512

ef41bc50b5278cc2185391aeebbb34bcb67968d7615bafaa6804d3ed60c6e095649615566f6087908b5dc00d788c490504f4ab9483ac72eb23f84ee287538776

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 SystemCredentials in Files
  • Accesses 2FA software files, possible credential harvesting

    Tags

    TTPs

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

    Tags

    TTPs

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

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify 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
                Tasks

                static1

                Score
                N/A