Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 01:27

General

  • Target

    Shipping Documents POV2405023/Shipping Documents POV2405023.xlsx.exe

  • Size

    371KB

  • MD5

    2d3cfe702b5ed5064a086a7c63c9c853

  • SHA1

    b74a924d93f66f0cf71023406a6959afe7a7c385

  • SHA256

    e0ece16177937a72af5678f92fa79d6a9fd01213b33663b46c6106aa3189eb96

  • SHA512

    cc45573b6c805763765b884d3ffa309bc4fd8f83508275a3323372d668afde693894aaa23840da52509054ca726a2ee1ec43fedab36fed9cb57437eaddf274e0

  • SSDEEP

    6144:7IxY3q6emyxIeCc6LK+hRz9Fl7nNjknWlajhgVZfwJPH1Q+9fRQK1oErL:sxY66cMc6LL9v7uWrZfayYfRr1oK

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6760916656:AAFTROumNysgqsjoqAvyBqjbR9y3VV4we2Y/

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Shipping Documents POV2405023\Shipping Documents POV2405023.xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\Shipping Documents POV2405023\Shipping Documents POV2405023.xlsx.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Users\Admin\AppData\Local\Temp\Shipping Documents POV2405023\Shipping Documents POV2405023.xlsx.exe
      "C:\Users\Admin\AppData\Local\Temp\Shipping Documents POV2405023\Shipping Documents POV2405023.xlsx.exe"
      2⤵
        PID:2320
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2320 -s 80
          3⤵
          • Program crash
          PID:4652
      • C:\Users\Admin\AppData\Local\Temp\Shipping Documents POV2405023\Shipping Documents POV2405023.xlsx.exe
        "C:\Users\Admin\AppData\Local\Temp\Shipping Documents POV2405023\Shipping Documents POV2405023.xlsx.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1528
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2320 -ip 2320
      1⤵
        PID:1808

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1528-7-0x00000000058F0000-0x0000000005956000-memory.dmp

        Filesize

        408KB

      • memory/1528-4-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/1528-5-0x00000000746A0000-0x0000000074E50000-memory.dmp

        Filesize

        7.7MB

      • memory/1528-6-0x0000000005DA0000-0x0000000006344000-memory.dmp

        Filesize

        5.6MB

      • memory/1528-8-0x00000000746A0000-0x0000000074E50000-memory.dmp

        Filesize

        7.7MB

      • memory/1528-11-0x0000000006F90000-0x0000000006FE0000-memory.dmp

        Filesize

        320KB

      • memory/1528-12-0x0000000007080000-0x000000000711C000-memory.dmp

        Filesize

        624KB

      • memory/1528-13-0x00000000071C0000-0x0000000007252000-memory.dmp

        Filesize

        584KB

      • memory/1528-14-0x0000000007160000-0x000000000716A000-memory.dmp

        Filesize

        40KB

      • memory/1528-15-0x00000000746A0000-0x0000000074E50000-memory.dmp

        Filesize

        7.7MB

      • memory/3056-1-0x00000000004F0000-0x0000000000552000-memory.dmp

        Filesize

        392KB

      • memory/3056-3-0x00000000746A0000-0x0000000074E50000-memory.dmp

        Filesize

        7.7MB

      • memory/3056-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

        Filesize

        4KB