Overview

overview

10

Static

static

1

Listed spe...on.vbs

windows7-x64

1

Listed spe...on.vbs

windows10-2004-x64

10

Sharing

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General

  • Target
    Listed specification.vbs
  • Size 161KB
  • Sample230612-nc5e4acc6s
  • SHA256 f9b536d2ba94bc4720cebc07ed39fc7643bdaea35b09b7112a09fef013123ca6
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
agentteslacollectionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    https://firebasestorage.googleapis.com/v0/b/fir-8c14f.appspot.com/o/rump_vbs.txt?alt=media&token=5c856fd2-ba6f-4f74-bfdf-bef0787c6cca

Extracted

Family

  • agenttesla

Credentials

Targets

    • Target
      Listed specification.vbs
    • Size 161KB
    • SHA256 f9b536d2ba94bc4720cebc07ed39fc7643bdaea35b09b7112a09fef013123ca6
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    agentteslacollectionkeyloggerpersistencespywarestealertrojan

    • AgentTesla

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

      keyloggertrojanstealerspywareagenttesla

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Accesses Microsoft Outlook profiles

      collection

    • Adds Run key to start application

      persistence

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks