b7935cf5dadecf64ba2c5b0829d8acc465a51f455e840bca805dc198db456ab9

General
Target

b7935cf5dadecf64ba2c5b0829d8acc465a51f455e840bca805dc198db456ab9

Size

782KB

Sample

211021-n6mgdabbal

Score
10 /10
MD5

98c9d0d7590d72406d6fc3df4a1650db

SHA1

1a0b4d2478dd1f9d61e262c9c6fd5af444e03852

SHA256

b7935cf5dadecf64ba2c5b0829d8acc465a51f455e840bca805dc198db456ab9

SHA512

8afc9a4bbc5fd18b71802b29a50028dc24588161dbd59e6101058dad76dbf7933f83bf0401132d62e08e396bd711c50362588ac275d0c19f0c42cb8840937c6c

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

b7935cf5dadecf64ba2c5b0829d8acc465a51f455e840bca805dc198db456ab9

MD5

98c9d0d7590d72406d6fc3df4a1650db

Filesize

782KB

Score
10 /10
SHA1

1a0b4d2478dd1f9d61e262c9c6fd5af444e03852

SHA256

b7935cf5dadecf64ba2c5b0829d8acc465a51f455e840bca805dc198db456ab9

SHA512

8afc9a4bbc5fd18b71802b29a50028dc24588161dbd59e6101058dad76dbf7933f83bf0401132d62e08e396bd711c50362588ac275d0c19f0c42cb8840937c6c

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