Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2023, 07:35

General

  • Target
    804152064.exe
  • Size 723KB
  • Sample230609-jen4nsbd83
  • SHA256 ad641230d3be8895193642d333ed88e1d6e94c209dfcb6c1932cd6a7f324a82f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

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.

  • 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).

  • 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 WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\804152064.exe
    "C:\Users\Admin\AppData\Local\Temp\804152064.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1584
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yZRXCHBD.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:968
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yZRXCHBD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp102C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4788
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2124

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        __PSScriptPolicyTest_s3wm3jta.ulu.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s3wm3jta.ulu.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp102C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp102C.tmp
        • Size 1KB
        • SHA256 47bc3bf0f45c8dd3d80d4e69eddae1f82239d950ae83e4a289666462069072bc
        • MD5 SHA1 SHA512

        memory/968-162-0x0000000002A10000-0x0000000002A20000-memory.dmp

        memory/968-180-0x000000007EED0000-0x000000007EEE0000-memory.dmp

        memory/968-187-0x00000000079C0000-0x00000000079C8000-memory.dmp

        memory/968-186-0x00000000079D0000-0x00000000079EA000-memory.dmp

        memory/968-185-0x00000000078D0000-0x00000000078DE000-memory.dmp

        memory/968-144-0x0000000004DF0000-0x0000000004E26000-memory.dmp

        memory/968-182-0x0000000007910000-0x00000000079A6000-memory.dmp

        memory/968-146-0x0000000005460000-0x0000000005A88000-memory.dmp

        memory/968-181-0x0000000007700000-0x000000000770A000-memory.dmp

        memory/968-149-0x00000000053C0000-0x00000000053E2000-memory.dmp

        memory/968-150-0x0000000005CC0000-0x0000000005D26000-memory.dmp

        memory/968-151-0x0000000005D30000-0x0000000005D96000-memory.dmp

        memory/968-179-0x0000000007690000-0x00000000076AA000-memory.dmp

        memory/968-178-0x0000000007CD0000-0x000000000834A000-memory.dmp

        memory/968-176-0x0000000006930000-0x000000000694E000-memory.dmp

        memory/968-164-0x0000000002A10000-0x0000000002A20000-memory.dmp

        memory/968-166-0x00000000709F0000-0x0000000070A3C000-memory.dmp

        memory/968-165-0x0000000007360000-0x0000000007392000-memory.dmp

        memory/968-163-0x0000000006390000-0x00000000063AE000-memory.dmp

        memory/1584-136-0x0000000005530000-0x000000000553A000-memory.dmp

        memory/1584-134-0x0000000005C10000-0x00000000061B4000-memory.dmp

        memory/1584-133-0x0000000000AC0000-0x0000000000B7A000-memory.dmp

        memory/1584-135-0x0000000005560000-0x00000000055F2000-memory.dmp

        memory/1584-139-0x0000000008750000-0x00000000087EC000-memory.dmp

        memory/1584-138-0x0000000005500000-0x0000000005510000-memory.dmp

        memory/1584-137-0x0000000005500000-0x0000000005510000-memory.dmp

        memory/2124-161-0x0000000005090000-0x00000000050A0000-memory.dmp

        memory/2124-147-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/2124-183-0x0000000006420000-0x0000000006470000-memory.dmp

        memory/2124-184-0x0000000006640000-0x0000000006802000-memory.dmp

        memory/2124-190-0x0000000005090000-0x00000000050A0000-memory.dmp