General

  • Target

    Purchase_Order.pdf.js

  • Size

    6KB

  • Sample

    230716-jmhxmaeb3z

  • MD5

    22ef674791168c60e62f62f00be76cbc

  • SHA1

    edad10bc2c6491883a7a21ca36350e234d1a7f0e

  • SHA256

    2e0cbf4f1d9cb97c620adc42521a0a10df04103d394f661e6255d3d20ee2715f

  • SHA512

    446e14b693b05555310e4a63f7f5d7d30247fdd08c7a5e9872193cc56f2683d2961aef2c73782e16581d309eabf671181f604bddfac9aca782f786d393a5553b

  • SSDEEP

    96:3mqLtJxkhmLILevLqyL8g4cLZL7SPLx7LELIL3LWLOVL+++d:3meJtUezR8g4gN7STxXIU7iOh+++d

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Family

wshrat

C2

http://chongmei33.publicvm.com:7045

Targets

    • Target

      Purchase_Order.pdf.js

    • Size

      6KB

    • MD5

      22ef674791168c60e62f62f00be76cbc

    • SHA1

      edad10bc2c6491883a7a21ca36350e234d1a7f0e

    • SHA256

      2e0cbf4f1d9cb97c620adc42521a0a10df04103d394f661e6255d3d20ee2715f

    • SHA512

      446e14b693b05555310e4a63f7f5d7d30247fdd08c7a5e9872193cc56f2683d2961aef2c73782e16581d309eabf671181f604bddfac9aca782f786d393a5553b

    • SSDEEP

      96:3mqLtJxkhmLILevLqyL8g4cLZL7SPLx7LELIL3LWLOVL+++d:3meJtUezR8g4gN7STxXIU7iOh+++d

    • AgentTesla

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

    • WSHRAT

      WSHRAT is a variant of Houdini worm and has vbs and js variants.

    • WSHRAT payload

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • 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.

MITRE ATT&CK Enterprise v6

Tasks