eb73abcdf4dcaebcc64d9d472163134b2735b75d3a6e719191e2d85da0ac5877

General
Target

eb73abcdf4dcaebcc64d9d472163134b2735b75d3a6e719191e2d85da0ac5877

Size

826KB

Sample

211020-b9ff1shdgr

Score
10 /10
MD5

15af01dd6facad6b0f82e53a32f45d47

SHA1

1616ea7ab7951785d56c7e36caabf6da259e7a38

SHA256

eb73abcdf4dcaebcc64d9d472163134b2735b75d3a6e719191e2d85da0ac5877

SHA512

7217d9e791f936f84afec609690a7841557db6e9f3b83ff85d6cbc5faaa9e1d34f29c19bac8ff11d671317bb854c760ce73264853426e8296581aeae277a69f1

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

eb73abcdf4dcaebcc64d9d472163134b2735b75d3a6e719191e2d85da0ac5877

MD5

15af01dd6facad6b0f82e53a32f45d47

Filesize

826KB

Score
10/10
SHA1

1616ea7ab7951785d56c7e36caabf6da259e7a38

SHA256

eb73abcdf4dcaebcc64d9d472163134b2735b75d3a6e719191e2d85da0ac5877

SHA512

7217d9e791f936f84afec609690a7841557db6e9f3b83ff85d6cbc5faaa9e1d34f29c19bac8ff11d671317bb854c760ce73264853426e8296581aeae277a69f1

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