General

  • Target

    MSK872314.exe

  • Size

    533KB

  • Sample

    240612-hsr7tatcrh

  • MD5

    6725c5c048c8b02b7ac81cf1eda3ceac

  • SHA1

    3f0554ee0004ef251bf6feaaa4574c5f6539e086

  • SHA256

    db91eeda3f08e6f34872a4708aa2deb3875949f1fd744318749f3c31c7d6dae9

  • SHA512

    08ae9a5b7578e431e5a8f4d69f4ea9478523ddc829d0a913927bd26ef7244ac422ff29ffe3dd5881ca27102e431688c01599d91f89c1c74e80596eb197895946

  • SSDEEP

    12288:4gBUtyTAEQRRU8vt4/Bf5Tg1FA25+cnzqGtuKd:4gm8TApRRDmRTGARczjDd

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    oadc jzrw bmvr klnl

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      MSK872314.exe

    • Size

      533KB

    • MD5

      6725c5c048c8b02b7ac81cf1eda3ceac

    • SHA1

      3f0554ee0004ef251bf6feaaa4574c5f6539e086

    • SHA256

      db91eeda3f08e6f34872a4708aa2deb3875949f1fd744318749f3c31c7d6dae9

    • SHA512

      08ae9a5b7578e431e5a8f4d69f4ea9478523ddc829d0a913927bd26ef7244ac422ff29ffe3dd5881ca27102e431688c01599d91f89c1c74e80596eb197895946

    • SSDEEP

      12288:4gBUtyTAEQRRU8vt4/Bf5Tg1FA25+cnzqGtuKd:4gm8TApRRDmRTGARczjDd

    • AgentTesla

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks