General

  • Target

    vieKruIqohwama.js

  • Size

    67KB

  • Sample

    221123-hcc3ysdg55

  • MD5

    76bbaec4c23114922ab7984042725d2a

  • SHA1

    97612b8e6e45c17b78aca2ee645bd6ec0e37853b

  • SHA256

    60c0ecb470e4c5b8f985db4eef3775842081eec19ff3468f3c751b61bc44cecb

  • SHA512

    9c7d3e713e03915c31be5bbc7dafc43238ab206e8b597216ae62eec62c47021c09b032b52dc903d76581018e95c39a89c72dae0245fbe4c590a4b8c231f56ea0

  • SSDEEP

    768:kOWy5gufY8gJ/9Gk9RMcvqSpfDbuVp24R6Pr3zZOAsC0TZFMn1HQt2OE:nSR2SdDw2g6PrDAAeU

Malware Config

Extracted

Family

vjw0rm

C2

http://45.139.105.174:7575

Targets

    • Target

      vieKruIqohwama.js

    • Size

      67KB

    • MD5

      76bbaec4c23114922ab7984042725d2a

    • SHA1

      97612b8e6e45c17b78aca2ee645bd6ec0e37853b

    • SHA256

      60c0ecb470e4c5b8f985db4eef3775842081eec19ff3468f3c751b61bc44cecb

    • SHA512

      9c7d3e713e03915c31be5bbc7dafc43238ab206e8b597216ae62eec62c47021c09b032b52dc903d76581018e95c39a89c72dae0245fbe4c590a4b8c231f56ea0

    • SSDEEP

      768:kOWy5gufY8gJ/9Gk9RMcvqSpfDbuVp24R6Pr3zZOAsC0TZFMn1HQt2OE:nSR2SdDw2g6PrDAAeU

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • 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 Enterprise v6

Tasks