570fbe91fdd6d1eb8cfd2f03c032cdde.exe

General
Target

570fbe91fdd6d1eb8cfd2f03c032cdde.exe

Size

872KB

Sample

210603-5fgyg6535j

Score
10 /10
MD5

570fbe91fdd6d1eb8cfd2f03c032cdde

SHA1

59d07617c682fed330d82b1d97f1bf32c30c6ff1

SHA256

b4a1845a21726b4826eb4157114d424c9a0f1c3112f67f587cbea352dd33ac61

SHA512

e0cd9f67e26140b22dbcee760b0690e5dd2bb0242091d3c759c123789c6b2bb8abbf1c2a80d6b4e1b00f9097f4f782ba2035041c92afc2280dd75a9dc21f7fb6

Malware Config

Extracted

Family vidar
Version 39.2
Botnet 517
C2

https://dimashub.tumblr.com

Attributes
profile_id
517
Targets
Target

570fbe91fdd6d1eb8cfd2f03c032cdde.exe

MD5

570fbe91fdd6d1eb8cfd2f03c032cdde

Filesize

872KB

Score
10 /10
SHA1

59d07617c682fed330d82b1d97f1bf32c30c6ff1

SHA256

b4a1845a21726b4826eb4157114d424c9a0f1c3112f67f587cbea352dd33ac61

SHA512

e0cd9f67e26140b22dbcee760b0690e5dd2bb0242091d3c759c123789c6b2bb8abbf1c2a80d6b4e1b00f9097f4f782ba2035041c92afc2280dd75a9dc21f7fb6

Tags

Signatures

  • Deletes Windows Defender Definitions

    Description

    Uses mpcmdrun utility to delete all AV definitions.

    Tags

    TTPs

    Command-Line Interface
  • Djvu Ransomware

    Description

    Ransomware which is a variant of the STOP family.

    Tags

  • Vidar

    Description

    Vidar is an infostealer based on Arkei stealer.

    Tags

  • Vidar Stealer

    Tags

  • Disables Task Manager via registry modification

    Tags

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • 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
    Exfiltration
      Impact
        Initial Access
          Lateral Movement
            Privilege Escalation