General

  • Target

    801fc7cfb15d34805610093de83b9eee582d882907f2544ff6afec9fb70f2bbc

  • Size

    693KB

  • Sample

    210926-n7j3msegh7

  • MD5

    2bd754f7114cbc3ec492d50b9ab27f9f

  • SHA1

    f18fa720928f1e317f1683cd2d9bfc830fe19707

  • SHA256

    801fc7cfb15d34805610093de83b9eee582d882907f2544ff6afec9fb70f2bbc

  • SHA512

    9a0a43be2214f099aaca7f8682622d65b4fe542f2acd8b3c5601bf79f92508b530ce2e3f9244588704f0765f25445139ffd67e82c928d962a4bc452cdea9daac

Malware Config

Targets

    • Target

      801fc7cfb15d34805610093de83b9eee582d882907f2544ff6afec9fb70f2bbc

    • Size

      693KB

    • MD5

      2bd754f7114cbc3ec492d50b9ab27f9f

    • SHA1

      f18fa720928f1e317f1683cd2d9bfc830fe19707

    • SHA256

      801fc7cfb15d34805610093de83b9eee582d882907f2544ff6afec9fb70f2bbc

    • SHA512

      9a0a43be2214f099aaca7f8682622d65b4fe542f2acd8b3c5601bf79f92508b530ce2e3f9244588704f0765f25445139ffd67e82c928d962a4bc452cdea9daac

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks