4ec6ed85e38a9f813e62bf38aab26cc469ba15079391f1a13a84485a2bc307f5

General
Target

4ec6ed85e38a9f813e62bf38aab26cc469ba15079391f1a13a84485a2bc307f5

Size

762KB

Sample

211014-glk99agbeq

Score
10 /10
MD5

af5ef12f4ab67645a8594e7621dc3a83

SHA1

7d6670d411b44ccd6a1a712bf709cde73bf34b0a

SHA256

4ec6ed85e38a9f813e62bf38aab26cc469ba15079391f1a13a84485a2bc307f5

SHA512

a9a437264a891dcc58d63f853d7819247ff8b92c1f1c80cfa7b8ae22a46e73cf158930c352d2b42352203a514d59c2028444e262fb3f3281306e18ae39c30142

Malware Config

Extracted

Family vidar
Version 41.3
Botnet 517
C2

https://mas.to/@oleg98

Attributes
profile_id
517

Extracted

Family djvu
C2

http://rlrz.org/fhsgtsspen6

Targets
Target

4ec6ed85e38a9f813e62bf38aab26cc469ba15079391f1a13a84485a2bc307f5

MD5

af5ef12f4ab67645a8594e7621dc3a83

Filesize

762KB

Score
10 /10
SHA1

7d6670d411b44ccd6a1a712bf709cde73bf34b0a

SHA256

4ec6ed85e38a9f813e62bf38aab26cc469ba15079391f1a13a84485a2bc307f5

SHA512

a9a437264a891dcc58d63f853d7819247ff8b92c1f1c80cfa7b8ae22a46e73cf158930c352d2b42352203a514d59c2028444e262fb3f3281306e18ae39c30142

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