Analysis

  • user interaction
    yes
  • max time kernel
    630s
  • max time network
    631s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/10/2026, 00:47

General

  • Target
    4b8d01d7080b.exe
  • Size 175KB
  • Sample261024-a4664sey7v
  • SHA256 be70991efe0351b9ae0db0e955943e941c01a8a4a4dba575bff664ce222b30ec
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • smurfx.duckdns.org:5050

Mutex
  • aP6wrBnW7OgAkQax

Attributes
  • install_file

    explorer.exe

aes.plain

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

  • Detect Xworm Payload 2 IoCs
  • Executes dropped EXE 12 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates video capture drivers 2 TTPs 1 IoCs

    Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.

  • Modifies trusted root certificate store through registry 1 TTPs 1 IoCs

    A root certificate was added, modified, or removed in the trusted certificate store registry paths.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 2 IoCs
  • Modifies system certificate store 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b8d01d7080b.exe
    "C:\Users\Admin\AppData\Local\Temp\4b8d01d7080b.exe"
    1⤵
    • Drops file in Program Files directory
    • Modifies trusted root certificate store through registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5868
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates video capture drivers
      • Reads the TCP/IP host and domain name from the registry
      PID:4592
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4512
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
    • Modifies registry class
    PID:476
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1260
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3816
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:1860
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalService -p -s fdPHost
        1⤵
          PID:5620
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
          1⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:2464
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
          1⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:3956
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
          1⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:2436
        • C:\Windows\system32\mmc.exe
          "C:\Windows\system32\mmc.exe" "C:\Windows\system32\taskschd.msc" /s
          1⤵
          • Drops file in System32 directory
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4168
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {c82192ee-6cb5-4bc0-9ef0-fb818773790a} -Embedding
          1⤵
            PID:2940
          • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
            "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
            1⤵
            • Executes dropped EXE
            PID:1568
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k SDRSVC
            1⤵
              PID:3792
            • C:\Windows\system32\taskmgr.exe
              "C:\Windows\system32\taskmgr.exe" /4
              1⤵
              • Checks SCSI registry key(s)
              • Modifies registry class
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              • Suspicious use of SetWindowsHookEx
              PID:4292
            • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
              "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
              1⤵
              • Executes dropped EXE
              PID:2012
            • C:\Windows\System32\DataExchangeHost.exe
              C:\Windows\System32\DataExchangeHost.exe -Embedding
              1⤵
                PID:4688
              • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
                "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
                1⤵
                • Executes dropped EXE
                PID:1516
              • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
                "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
                1⤵
                • Executes dropped EXE
                PID:1436
              • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
                "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
                1⤵
                • Executes dropped EXE
                PID:428
              • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
                "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"
                1⤵
                • Executes dropped EXE
                PID:5420
              • C:\Windows\System32\SecurityHealthHost.exe
                \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
                1⤵
                  PID:4632

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

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                      Downloads

                      MicrosoftEdgeUpdate.exe

                      • Path C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
                      • Size 49KB
                      • SHA256 4431698c79060468a45f145e3c68368fe2ba533bde6b7e1f5686a40e38a34f85
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      memory/4292-27-0x000002058C0C0000-0x000002058C0C1000-memory.dmp

                      memory/4292-33-0x000002058C0C0000-0x000002058C0C1000-memory.dmp

                      memory/4292-34-0x000002058C0C0000-0x000002058C0C1000-memory.dmp

                      memory/4292-35-0x000002058C0C0000-0x000002058C0C1000-memory.dmp

                      memory/4292-36-0x000002058C0C0000-0x000002058C0C1000-memory.dmp

                      memory/4292-37-0x000002058C0C0000-0x000002058C0C1000-memory.dmp

                      memory/4292-38-0x000002058C0C0000-0x000002058C0C1000-memory.dmp

                      memory/4292-29-0x000002058C0C0000-0x000002058C0C1000-memory.dmp

                      memory/4512-9-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4512-13-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4512-10-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4512-11-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-12-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-18-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-17-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-14-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-16-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-15-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-7-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-6-0x00007FFF2D9E0000-0x00007FFF2E384000-memory.dmp

                      memory/4592-5-0x0000000000A70000-0x0000000000A80000-memory.dmp

                      memory/4592-4-0x00007FFF2DB6F000-0x00007FFF2DB70000-memory.dmp