Analysis

  • max time kernel
    116s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/11/2024, 03:17

General

  • Target
    efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c.exe
  • Size 588KB
  • Sample241114-dthmjstfpb
  • SHA256 efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Agenttesla family
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c.exe
    "C:\Users\Admin\AppData\Local\Temp\efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5000
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4228
    • C:\Users\Admin\AppData\Local\Temp\efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c.exe
      "C:\Users\Admin\AppData\Local\Temp\efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1020

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\efad3269d3bd9b9dfea3c1553dde89ad411d4dc850ad2cc9268e291ed3af1c6c.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_pdu5h10s.p31.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pdu5h10s.p31.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/1020-11-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1020-14-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/1020-64-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/1020-51-0x0000000006650000-0x0000000006812000-memory.dmp

        memory/1020-50-0x0000000006430000-0x0000000006480000-memory.dmp

        memory/1020-19-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/1020-16-0x0000000005040000-0x00000000050A6000-memory.dmp

        memory/4228-33-0x0000000005A40000-0x0000000005D94000-memory.dmp

        memory/4228-36-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/4228-63-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/4228-60-0x00000000076B0000-0x00000000076B8000-memory.dmp

        memory/4228-59-0x00000000076D0000-0x00000000076EA000-memory.dmp

        memory/4228-58-0x00000000075D0000-0x00000000075E4000-memory.dmp

        memory/4228-57-0x00000000075C0000-0x00000000075CE000-memory.dmp

        memory/4228-17-0x0000000002730000-0x0000000002766000-memory.dmp

        memory/4228-56-0x0000000007590000-0x00000000075A1000-memory.dmp

        memory/4228-18-0x0000000005140000-0x0000000005768000-memory.dmp

        memory/4228-32-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/4228-22-0x00000000058E0000-0x0000000005946000-memory.dmp

        memory/4228-20-0x00000000050B0000-0x00000000050D2000-memory.dmp

        memory/4228-55-0x0000000007610000-0x00000000076A6000-memory.dmp

        memory/4228-54-0x0000000007400000-0x000000000740A000-memory.dmp

        memory/4228-21-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/4228-34-0x0000000006060000-0x000000000607E000-memory.dmp

        memory/4228-53-0x0000000007390000-0x00000000073AA000-memory.dmp

        memory/4228-35-0x00000000065D0000-0x000000000661C000-memory.dmp

        memory/4228-37-0x0000000007040000-0x0000000007072000-memory.dmp

        memory/4228-38-0x0000000070B80000-0x0000000070BCC000-memory.dmp

        memory/4228-48-0x0000000006630000-0x000000000664E000-memory.dmp

        memory/4228-49-0x0000000007080000-0x0000000007123000-memory.dmp

        memory/4228-52-0x00000000079D0000-0x000000000804A000-memory.dmp

        memory/5000-5-0x00000000052C0000-0x00000000052CA000-memory.dmp

        memory/5000-6-0x00000000055D0000-0x000000000566C000-memory.dmp

        memory/5000-10-0x0000000006AF0000-0x0000000006B64000-memory.dmp

        memory/5000-1-0x0000000000820000-0x00000000008BA000-memory.dmp

        memory/5000-3-0x0000000005320000-0x00000000053B2000-memory.dmp

        memory/5000-7-0x00000000055C0000-0x00000000055D2000-memory.dmp

        memory/5000-8-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

        memory/5000-9-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/5000-15-0x0000000074F20000-0x00000000756D0000-memory.dmp

        memory/5000-2-0x0000000005830000-0x0000000005DD4000-memory.dmp

        memory/5000-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

        memory/5000-4-0x0000000074F20000-0x00000000756D0000-memory.dmp