eca23b112f9ba2b1370ac2282d0d7fe0fdd84c10157f1a5f9b740889010c2caf

General
Target

eca23b112f9ba2b1370ac2282d0d7fe0fdd84c10157f1a5f9b740889010c2caf

Size

781KB

Sample

211021-pyb64sbben

Score
10 /10
MD5

8b3e26a067ac4176aa9ad5333b667a8c

SHA1

d8b91df57f422c2157b9b1544a68e8af51ed3d18

SHA256

eca23b112f9ba2b1370ac2282d0d7fe0fdd84c10157f1a5f9b740889010c2caf

SHA512

7551d5cc906af7119a46820f3a168c7c30da27ff4cc4ab7aa59729af0a7eab95ac9fcb12016ee5544dabac4a0f5814ec4268a1699130f02b67f796906f8f689c

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

eca23b112f9ba2b1370ac2282d0d7fe0fdd84c10157f1a5f9b740889010c2caf

MD5

8b3e26a067ac4176aa9ad5333b667a8c

Filesize

781KB

Score
10/10
SHA1

d8b91df57f422c2157b9b1544a68e8af51ed3d18

SHA256

eca23b112f9ba2b1370ac2282d0d7fe0fdd84c10157f1a5f9b740889010c2caf

SHA512

7551d5cc906af7119a46820f3a168c7c30da27ff4cc4ab7aa59729af0a7eab95ac9fcb12016ee5544dabac4a0f5814ec4268a1699130f02b67f796906f8f689c

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