General

  • Target

    PI_230524.exe

  • Size

    531KB

  • Sample

    240523-s62zaagc36

  • MD5

    fe3bcba4cdc4ae741ee54de500496669

  • SHA1

    e27ac7c118efb35b85abf8dc4300a6291737dea2

  • SHA256

    86d74d655679ee232b8fcf1a0013a17972b6b93aed25ae8beccd5864a9a1ecbe

  • SHA512

    d337947fcb86f48b30e676b105c584811723dacf16ce3af4cdac70607a239d9b5aaf93b0abd54754cc7801cac7a86fd7da293655d0dcfa4de32147df75ae9ff8

  • SSDEEP

    6144:+Y8i9d6ihOq761Mymf40IoBdLlNZ4DYvP+TV5lKiecmMlGvtClbUpEjoltWucv:8K6+L761MymflCYX+EixjlGHu8ltWuq

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.showpiece.trillennium.biz
  • Port:
    587
  • Username:
    light@showpiece.trillennium.biz
  • Password:
    ]2p65r?5jH32
  • Email To:
    build@showpiece.trillennium.biz

Targets

    • Target

      PI_230524.exe

    • Size

      531KB

    • MD5

      fe3bcba4cdc4ae741ee54de500496669

    • SHA1

      e27ac7c118efb35b85abf8dc4300a6291737dea2

    • SHA256

      86d74d655679ee232b8fcf1a0013a17972b6b93aed25ae8beccd5864a9a1ecbe

    • SHA512

      d337947fcb86f48b30e676b105c584811723dacf16ce3af4cdac70607a239d9b5aaf93b0abd54754cc7801cac7a86fd7da293655d0dcfa4de32147df75ae9ff8

    • SSDEEP

      6144:+Y8i9d6ihOq761Mymf40IoBdLlNZ4DYvP+TV5lKiecmMlGvtClbUpEjoltWucv:8K6+L761MymflCYX+EixjlGHu8ltWuq

    • 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.

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

3
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Tasks