590c910d4fa0efd681b71988cee0865b307ea23b3e6c654d82d6368c70495f0b

General
Target

590c910d4fa0efd681b71988cee0865b307ea23b3e6c654d82d6368c70495f0b

Size

781KB

Sample

211021-gdzsnsagbm

Score
10 /10
MD5

dade951144ab6abc932c2bdc96bdef6f

SHA1

1e1cf9c6390b27de327d773f85d6473bb1d837f1

SHA256

590c910d4fa0efd681b71988cee0865b307ea23b3e6c654d82d6368c70495f0b

SHA512

8442a919ad29ad0a1eeab30a0ee7015d6c836602fb38244db8b803a4376691676209baf194f2feb01408c81e4eee9a6ce4957440d4a86f45100ff8d1d0db3444

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

590c910d4fa0efd681b71988cee0865b307ea23b3e6c654d82d6368c70495f0b

MD5

dade951144ab6abc932c2bdc96bdef6f

Filesize

781KB

Score
10 /10
SHA1

1e1cf9c6390b27de327d773f85d6473bb1d837f1

SHA256

590c910d4fa0efd681b71988cee0865b307ea23b3e6c654d82d6368c70495f0b

SHA512

8442a919ad29ad0a1eeab30a0ee7015d6c836602fb38244db8b803a4376691676209baf194f2feb01408c81e4eee9a6ce4957440d4a86f45100ff8d1d0db3444

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

behavioral1
MITRE ATT&CK Matrix
Collection
Command and Control
    Credential Access
    Defense Evasion
    Discovery
    Execution
      Exfiltration
        Impact
          Initial Access
            Lateral Movement
              Persistence
              Privilege Escalation