General

  • Target

    hsbcpayment.doc

  • Size

    200KB

  • Sample

    240223-ttm52aea4v

  • MD5

    f38485c927c41083769311aef5eac8c5

  • SHA1

    d883b17a8a12895729c253a3497eed90dd718db7

  • SHA256

    c119837547083f87c3852d0399f2065b733d687a5cb493523463df231351324b

  • SHA512

    acc825916110bb006217da1e800245643f4603384204ab7c318994279ed8719ba482e39bdd7ce0eca5b17e77999957965ba21bf76498f0cb76d3e933ad0b0a24

  • SSDEEP

    1536:gwAlRkwAlRkwAlRkwAlRi3vsBlwu2aS9kqaH:gwAlawAlawAlawAlI30Blwu2VkqaH

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      hsbcpayment.doc

    • Size

      200KB

    • MD5

      f38485c927c41083769311aef5eac8c5

    • SHA1

      d883b17a8a12895729c253a3497eed90dd718db7

    • SHA256

      c119837547083f87c3852d0399f2065b733d687a5cb493523463df231351324b

    • SHA512

      acc825916110bb006217da1e800245643f4603384204ab7c318994279ed8719ba482e39bdd7ce0eca5b17e77999957965ba21bf76498f0cb76d3e933ad0b0a24

    • SSDEEP

      1536:gwAlRkwAlRkwAlRkwAlRi3vsBlwu2aS9kqaH:gwAlawAlawAlawAlI30Blwu2VkqaH

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • 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.

    • 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