Analysis

  • max time kernel
    75s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/11/2022, 16:57

General

  • Target
    SOA.exe
  • Size 704KB
  • Sample221117-vf9ybaba2s
  • SHA256 d2dd5814fced0acd5202091e9b0392ec2e96029315580930bcb9ab38deed14d0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot5745656562:AAEWafwrgUiORYk4Z5mN1SY726IYW3inkfw/

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SOA.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3876
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EUdvNFecB.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1728
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EUdvNFecB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2829.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1956
    • C:\Users\Admin\AppData\Local\Temp\SOA.exe
      "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2028

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmp2829.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp2829.tmp
        • Size 1KB
        • SHA256 95299b9fff7cc2d920af30131356a1999b7dd413a75f6851126ddae013499fef
        • MD5 SHA1 SHA512

        memory/1728-153-0x00000000074B0000-0x00000000074CA000-memory.dmp

        memory/1728-157-0x00000000077F0000-0x000000000780A000-memory.dmp

        memory/1728-158-0x00000000077D0000-0x00000000077D8000-memory.dmp

        memory/1728-147-0x0000000005DB0000-0x0000000005E16000-memory.dmp

        memory/1728-156-0x00000000076E0000-0x00000000076EE000-memory.dmp

        memory/1728-155-0x0000000007730000-0x00000000077C6000-memory.dmp

        memory/1728-140-0x0000000004BD0000-0x0000000004C06000-memory.dmp

        memory/1728-154-0x0000000007520000-0x000000000752A000-memory.dmp

        memory/1728-152-0x0000000007AF0000-0x000000000816A000-memory.dmp

        memory/1728-143-0x0000000005350000-0x0000000005978000-memory.dmp

        memory/1728-146-0x0000000005C00000-0x0000000005C66000-memory.dmp

        memory/1728-151-0x0000000006750000-0x000000000676E000-memory.dmp

        memory/1728-145-0x0000000005A10000-0x0000000005A32000-memory.dmp

        memory/1728-150-0x0000000070DA0000-0x0000000070DEC000-memory.dmp

        memory/1728-148-0x00000000061A0000-0x00000000061BE000-memory.dmp

        memory/1728-149-0x0000000006790000-0x00000000067C2000-memory.dmp

        memory/2028-144-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/2028-159-0x0000000006840000-0x0000000006890000-memory.dmp

        memory/3876-134-0x0000000004CC0000-0x0000000004D52000-memory.dmp

        memory/3876-132-0x0000000000190000-0x0000000000246000-memory.dmp

        memory/3876-133-0x00000000051D0000-0x0000000005774000-memory.dmp

        memory/3876-137-0x0000000008A90000-0x0000000008B2C000-memory.dmp

        memory/3876-136-0x0000000005000000-0x00000000051A6000-memory.dmp

        memory/3876-135-0x0000000004C20000-0x0000000004C2A000-memory.dmp