General

  • Target

    60f0f38deb950a19e48ae9ce35a9d4be568e68d3e5a4b78e930a06ec8aa89744

  • Size

    694KB

  • Sample

    210926-ntvxzseffk

  • MD5

    30f08893fc78bd6d819c186c09995b71

  • SHA1

    fadeec567d7897b8541d2499f9fe00f2773f1f6a

  • SHA256

    60f0f38deb950a19e48ae9ce35a9d4be568e68d3e5a4b78e930a06ec8aa89744

  • SHA512

    49d7d52f8722894e6e07ad569238a0433b152c9d48bda119a76255ac8448b5ef4d233710e94d05e21c7d34bbb37b21730e098d696f49c2e7fcda728603fb6dcf

Malware Config

Targets

    • Target

      60f0f38deb950a19e48ae9ce35a9d4be568e68d3e5a4b78e930a06ec8aa89744

    • Size

      694KB

    • MD5

      30f08893fc78bd6d819c186c09995b71

    • SHA1

      fadeec567d7897b8541d2499f9fe00f2773f1f6a

    • SHA256

      60f0f38deb950a19e48ae9ce35a9d4be568e68d3e5a4b78e930a06ec8aa89744

    • SHA512

      49d7d52f8722894e6e07ad569238a0433b152c9d48bda119a76255ac8448b5ef4d233710e94d05e21c7d34bbb37b21730e098d696f49c2e7fcda728603fb6dcf

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • 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