General

  • Target
    SecuriteInfo.com.W32.AIDetectNet.01.30362.29768
  • Size 976KB
  • Sample220727-fejbmsacfp
  • SHA256 64d8e5fd70d710d77cc38992cc5b9f7a23757e0cf5f0fc6399f53cb160154f74
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.huiijingco.com

  • Port

    587

  • Password

    lNLUrZT2

Targets

    • Target
      SecuriteInfo.com.W32.AIDetectNet.01.30362.29768
    • Size 976KB
    • SHA256 64d8e5fd70d710d77cc38992cc5b9f7a23757e0cf5f0fc6399f53cb160154f74
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • 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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks