General

  • Target

    272d2472eb7694684dc9930463283cf958fe2f90a332119f2a4450dd9ad51b83.rar

  • Size

    595KB

  • Sample

    240628-blevksvgql

  • MD5

    1caa8aadf3404b13a0548d96f255303f

  • SHA1

    9b51583a60520b232646896d39cd071908756614

  • SHA256

    272d2472eb7694684dc9930463283cf958fe2f90a332119f2a4450dd9ad51b83

  • SHA512

    7c19083a9839d3ef8dc19afc1fbdc1e270d5f103ed55e4d99bc600a2629b2e00e713ec6c59f863db5192958a60377dc6efba6b0d28dc93b0a7d2798a54090e48

  • SSDEEP

    12288:2+V4STZM60awYaXPbdPcNjtBA9Lqn3nMnhYUswy:2+V4CMZVnZ0Njt2RunMn+UQ

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.oserfech.eu
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Epicoffice@2024

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      P.O.20406279090001209.xlxs‮s؜x؜l؜x؜..exe

    • Size

      3.3MB

    • MD5

      61491e46356c041c59600ab56b199e27

    • SHA1

      b1774f167669b067bfc371a60540f4b411c628b3

    • SHA256

      cc2449806f1dc49a487f27ca59ab8d7db268dd48881bbd52aec24dc82820d731

    • SHA512

      1709349a4db8e8f660bf51eace7706565a437c2357b132b48eac039daa1b5ca6b2f373f247d2dc210b2c7f152d60d2de72ff6accf9428a2ae481aa04485994f6

    • SSDEEP

      12288:Q/LdzY7Z+zPd2rfoezy4IA8vEA+/RyeI4LymjSmKjiqsgWZZ7kh:QzdE9DxSvT+/Rgq0E57Q

    • AgentTesla

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

    • UAC bypass

    • Windows security bypass

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

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

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks