General

  • Target

    6fe897baa10be501df2973f8296d46c0dbe9f6f844808218780cd47bf46ba999

  • Size

    781KB

  • Sample

    211019-xw1qpagcg8

  • MD5

    d5586b734a7d2b73f8db6091d537e4a0

  • SHA1

    b699db5d6e097476bf3eb18c587724fd337f4ff2

  • SHA256

    6fe897baa10be501df2973f8296d46c0dbe9f6f844808218780cd47bf46ba999

  • SHA512

    02466aad78d72d5e3be0f90d5bcc6286425659c714be12c1f45ccdcc2f3ead925c74fd30e55de05e19823b0b95eb7dd5c5e03d7bff87dcc5b05fb6c7946bf5d8

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

      6fe897baa10be501df2973f8296d46c0dbe9f6f844808218780cd47bf46ba999

    • Size

      781KB

    • MD5

      d5586b734a7d2b73f8db6091d537e4a0

    • SHA1

      b699db5d6e097476bf3eb18c587724fd337f4ff2

    • SHA256

      6fe897baa10be501df2973f8296d46c0dbe9f6f844808218780cd47bf46ba999

    • SHA512

      02466aad78d72d5e3be0f90d5bcc6286425659c714be12c1f45ccdcc2f3ead925c74fd30e55de05e19823b0b95eb7dd5c5e03d7bff87dcc5b05fb6c7946bf5d8

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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