Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    18-06-2024 10:32

General

  • Target

    3.exe

  • Size

    1.9MB

  • MD5

    7b4c1ed22b968699059bb4717e2665a7

  • SHA1

    731e51b1a3d522ea391495271d977e0e4961f203

  • SHA256

    d72087da88129a3b1bce3505c119cb418f84bd68659eb33385546b9e33dddb4c

  • SHA512

    d0c89dd0b914991ab2eeb4de48f98c46f14888849bf9a116a902fb497ef2b65725e82f8ac8f465172d147d7a9ec6a0fb9ae829f138e0ec3579a79dee48ec03d7

  • SSDEEP

    12288:xthPA7R1brgevLbkgpco8BuB+VotGHNq82Qd+Y9J7O+aL229GgPlZqUXJctT:xY7R1YeDogpvB/ktJ2Qd99Q9OsJcx

Malware Config

Extracted

Credentials

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

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • UAC bypass 3 TTPs 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3.exe
    "C:\Users\Admin\AppData\Local\Temp\3.exe"
    1⤵
    • UAC bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2212
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\3.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2616
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      2⤵
        PID:2052
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2732
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2212 -s 1032
        2⤵
          PID:1156

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2212-24-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

        Filesize

        4KB

      • memory/2212-1-0x0000000001390000-0x00000000013A2000-memory.dmp

        Filesize

        72KB

      • memory/2212-2-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

        Filesize

        9.9MB

      • memory/2212-3-0x000000001A7B0000-0x000000001A846000-memory.dmp

        Filesize

        600KB

      • memory/2212-25-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

        Filesize

        9.9MB

      • memory/2212-0-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

        Filesize

        4KB

      • memory/2616-8-0x00000000024C0000-0x0000000002540000-memory.dmp

        Filesize

        512KB

      • memory/2616-9-0x000000001B350000-0x000000001B632000-memory.dmp

        Filesize

        2.9MB

      • memory/2616-10-0x0000000000440000-0x0000000000448000-memory.dmp

        Filesize

        32KB

      • memory/2732-13-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2732-22-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2732-20-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2732-17-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2732-15-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2732-21-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/2732-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2732-11-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB