General

  • Target

    New Order.xls

  • Size

    1012KB

  • Sample

    240515-g8hgwada3z

  • MD5

    514296ca061ff642b5c91946d8ba259d

  • SHA1

    c0af867b5880cd8076776c45bc6d90fb97e16368

  • SHA256

    87d4561eae4df4c920970643e7c467b2a06ef907a0f88846511f65cc2b8b9226

  • SHA512

    c6d6e87ee18283ac5b29565ad7e4e2ac0f70bc9c92983f4c0743811ea58483f984ffa10ff55c0ee9dd4d7780a696c6cfa80dff5c5202b2eca126cf3d608d2276

  • SSDEEP

    24576:3t6kYCQ5HKRrUP/mMxMzaE1pskiyLAKiKDGAPchxGzJVKI:dRYd0rGvRKDGAPckQ

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      New Order.xls

    • Size

      1012KB

    • MD5

      514296ca061ff642b5c91946d8ba259d

    • SHA1

      c0af867b5880cd8076776c45bc6d90fb97e16368

    • SHA256

      87d4561eae4df4c920970643e7c467b2a06ef907a0f88846511f65cc2b8b9226

    • SHA512

      c6d6e87ee18283ac5b29565ad7e4e2ac0f70bc9c92983f4c0743811ea58483f984ffa10ff55c0ee9dd4d7780a696c6cfa80dff5c5202b2eca126cf3d608d2276

    • SSDEEP

      24576:3t6kYCQ5HKRrUP/mMxMzaE1pskiyLAKiKDGAPchxGzJVKI:dRYd0rGvRKDGAPckQ

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Abuses OpenXML format to download file from external location

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • 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 v15

Tasks