General

  • Target

    a3f691b8cbca9531cb2e2711e0f2a166.bin

  • Size

    681KB

  • Sample

    240519-bqk76aah2y

  • MD5

    e474b56c3e0c133271727c08f7c8d1ee

  • SHA1

    c55e8e9b34ee0dd40b8f99bf9e834bf7959bc1f5

  • SHA256

    ef174d6438c58956436c1cfcab9d31c452855583462681b8f1c6925563fb0763

  • SHA512

    684733abaab7513fe7ebab8a2989aa84853eac220bbce3659ef0e9128b2c4793120e880e9685a16f506f1913f64b9533fc199f4f1fff46f82bc8710d1d422fc7

  • SSDEEP

    12288:HwFCje1hz0UXpqoOHy1K1cuDL/qVKGoZ2O3PkpY655gcxzjh0c/MARf1lRm:HwF530UXkh2K2uDjqVb55gcxBJkY1ls

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bonnyriggdentalsurgery.com.au
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Sages101*

Targets

    • Target

      e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432.exe

    • Size

      700KB

    • MD5

      a3f691b8cbca9531cb2e2711e0f2a166

    • SHA1

      3f8369e5be5fa86d52afb5dbe538bddc0060ab90

    • SHA256

      e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432

    • SHA512

      d0394294e50b28950a96cf1b061d19f5621eb402d20bf16aee212697af210a0befb05d8c7b7ec93e38000cfecbd076829662fe1d5ead075776d9f69ea075e84c

    • SSDEEP

      12288:hdrLbDZaNRpTTqcoXw8w4r9a4klENmi/Z1VQ62FcjD/fyww6Ht7NalxIJetRy3f:7LDZMRpTX9hv4kNeV7vxN7NajMv3f

    • AgentTesla

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

    • 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.

    • 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