General

  • Target
    svc.vbs
  • Size 198KB
  • Sample231128-j2pnqagc79
  • SHA256 e50d396fce14d5c6f58251adb5967d37862e8f2931d760ea76557e45086c30bf
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    https://uploaddeimagens.com.br/images/004/674/364/original/vbsss.jpg?1700999331

  • exe.dropper

    https://uploaddeimagens.com.br/images/004/674/364/original/vbsss.jpg?1700999331

Extracted

Family
  • agenttesla

Credentials

Targets

    • Target
      svc.vbs
    • Size 198KB
    • SHA256 e50d396fce14d5c6f58251adb5967d37862e8f2931d760ea76557e45086c30bf
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • 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.

    • 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 v15

Tasks