Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 01:13

General

  • Target
    165005cb8423f38beba5461a10f3cf5fb69304013b5033463265c5457e48b76d.exe
  • Size 561KB
  • Sample241017-bk4sbatfna
  • SHA256 165005cb8423f38beba5461a10f3cf5fb69304013b5033463265c5457e48b76d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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\165005cb8423f38beba5461a10f3cf5fb69304013b5033463265c5457e48b76d.exe
    "C:\Users\Admin\AppData\Local\Temp\165005cb8423f38beba5461a10f3cf5fb69304013b5033463265c5457e48b76d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2484
    • 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\165005cb8423f38beba5461a10f3cf5fb69304013b5033463265c5457e48b76d.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2880
    • C:\Users\Admin\AppData\Local\Temp\165005cb8423f38beba5461a10f3cf5fb69304013b5033463265c5457e48b76d.exe
      "C:\Users\Admin\AppData\Local\Temp\165005cb8423f38beba5461a10f3cf5fb69304013b5033463265c5457e48b76d.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:760

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        __PSScriptPolicyTest_3y2s4tv0.esi.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3y2s4tv0.esi.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/760-63-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/760-55-0x0000000006A60000-0x0000000006C22000-memory.dmp

        memory/760-54-0x0000000006730000-0x0000000006780000-memory.dmp

        memory/760-33-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/760-30-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/2484-11-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/2484-6-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

        memory/2484-8-0x0000000006BA0000-0x0000000006BB2000-memory.dmp

        memory/2484-9-0x0000000008670000-0x00000000086E2000-memory.dmp

        memory/2484-10-0x000000000AE20000-0x000000000AEBC000-memory.dmp

        memory/2484-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

        memory/2484-1-0x0000000000F40000-0x0000000000FD2000-memory.dmp

        memory/2484-2-0x0000000005FF0000-0x0000000006594000-memory.dmp

        memory/2484-3-0x0000000005A40000-0x0000000005AD2000-memory.dmp

        memory/2484-7-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/2484-4-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/2484-32-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/2484-5-0x00000000059D0000-0x00000000059DA000-memory.dmp

        memory/2880-34-0x0000000005F30000-0x0000000005F4E000-memory.dmp

        memory/2880-49-0x00000000078E0000-0x0000000007F5A000-memory.dmp

        memory/2880-29-0x0000000005AC0000-0x0000000005E14000-memory.dmp

        memory/2880-19-0x0000000005290000-0x00000000052F6000-memory.dmp

        memory/2880-18-0x0000000005220000-0x0000000005286000-memory.dmp

        memory/2880-15-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/2880-16-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/2880-35-0x0000000005F80000-0x0000000005FCC000-memory.dmp

        memory/2880-36-0x00000000064F0000-0x0000000006522000-memory.dmp

        memory/2880-37-0x0000000075650000-0x000000007569C000-memory.dmp

        memory/2880-47-0x0000000006530000-0x000000000654E000-memory.dmp

        memory/2880-48-0x00000000071B0000-0x0000000007253000-memory.dmp

        memory/2880-50-0x0000000007260000-0x000000000727A000-memory.dmp

        memory/2880-17-0x0000000005180000-0x00000000051A2000-memory.dmp

        memory/2880-51-0x00000000072D0000-0x00000000072DA000-memory.dmp

        memory/2880-52-0x00000000074E0000-0x0000000007576000-memory.dmp

        memory/2880-53-0x0000000007460000-0x0000000007471000-memory.dmp

        memory/2880-14-0x0000000005490000-0x0000000005AB8000-memory.dmp

        memory/2880-13-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/2880-56-0x0000000007490000-0x000000000749E000-memory.dmp

        memory/2880-57-0x00000000074A0000-0x00000000074B4000-memory.dmp

        memory/2880-58-0x00000000075A0000-0x00000000075BA000-memory.dmp

        memory/2880-59-0x0000000007580000-0x0000000007588000-memory.dmp

        memory/2880-62-0x0000000074DF0000-0x00000000755A0000-memory.dmp

        memory/2880-12-0x0000000002600000-0x0000000002636000-memory.dmp