General

  • Target

    e3bfec7bab88ff2b0389ee7850b548413607b9074912eca507c09737d93d3a14.exe

  • Size

    695KB

  • Sample

    240519-cx9prsdg7s

  • MD5

    0db822fa626ab44ce58958e45d439a20

  • SHA1

    a674592f7f01a24fa85838d3d697fea11779e3a2

  • SHA256

    e3bfec7bab88ff2b0389ee7850b548413607b9074912eca507c09737d93d3a14

  • SHA512

    a61f02a8d5809ec453eb507857cf2975e3c7b78bb278cede64719084d4787fd2ae8acae9d35badf9dd617a19662df676fb87fe8450ab408a2a436f2eb9d4438d

  • SSDEEP

    12288:BdrLbDZaNRpbgoxpz+hKuhyoQ3UlC+adAhV92LhkAr2YUjsxL7glIhr3qA:bLDZMRpMCBezZ82N26Arh1xLXLqA

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ifeanyi@12

Targets

    • Target

      e3bfec7bab88ff2b0389ee7850b548413607b9074912eca507c09737d93d3a14.exe

    • Size

      695KB

    • MD5

      0db822fa626ab44ce58958e45d439a20

    • SHA1

      a674592f7f01a24fa85838d3d697fea11779e3a2

    • SHA256

      e3bfec7bab88ff2b0389ee7850b548413607b9074912eca507c09737d93d3a14

    • SHA512

      a61f02a8d5809ec453eb507857cf2975e3c7b78bb278cede64719084d4787fd2ae8acae9d35badf9dd617a19662df676fb87fe8450ab408a2a436f2eb9d4438d

    • SSDEEP

      12288:BdrLbDZaNRpbgoxpz+hKuhyoQ3UlC+adAhV92LhkAr2YUjsxL7glIhr3qA:bLDZMRpMCBezZ82N26Arh1xLXLqA

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • 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