Analysis

  • max time kernel
    30s
  • max time network
    149s
  • 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, 13:12

General

  • Target
    Chrome_Atualizar--ZE4BYP.hta
  • Size 2KB
  • Sample260803-qfrdrayhkh
  • SHA256 ad6475592d80da7560b39a824225edf8d9a063ab015b7e60a996b8819ceec0ea
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 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 1 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • 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 8 IoCs
  • Modifies registry class 28 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 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\Chrome_Atualizar--ZE4BYP.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Badlisted process makes network request
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4976
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:4600
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:4664
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:3872
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:260
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:5644
    • C:\Windows\SysWOW64\attrib.exe
      "C:\Windows\System32\attrib.exe" +h +s "C:\mbjagfdi\"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:4468
    • C:\mbjagfdi\mbjagfdi.exe
      "C:\mbjagfdi\mbjagfdi.exe" C:\mbjagfdi\mbjagfdi
      2⤵
        PID:720
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
        2⤵
          PID:1500
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
            3⤵
              PID:1720
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c ping -n 300 -w 1000 127.0.0.1 >nul
            2⤵
            • Executes a command shell one-liner
            • System Network Configuration Discovery: Internet Connection Discovery
            PID:5464
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 300 -w 1000 127.0.0.1
              3⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:2320

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              8B2B9A00839EED1DFDCCC3BFC2F5DF12

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
              • Size 1KB
              • SHA256 63b14543360f5e89942ea8d5113526e64fbc71c1207328f0136b3a495d921dd0
              • MD5 SHA1 SHA512 TLSH

              9764968A551D4734F147738AB1863B84

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9764968A551D4734F147738AB1863B84
              • Size 455B
              • SHA256 8c2280c999b3f720cfbadb6377f301c4f5625265c02c7c2a9dc0a2620ae797da
              • MD5 SHA1 SHA512 TLSH

              B46811C17859FFB409CF0E904A4AA8F8

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
              • Size 528B
              • SHA256 d2bb091268ade68ad8121d2184d0fbce128070156304bd4de312e6fbd267409c
              • MD5 SHA1 SHA512 TLSH

              8B2B9A00839EED1DFDCCC3BFC2F5DF12

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
              • Size 174B
              • SHA256 796a80bd9006d5109459398ae008c4a501bb9a1876dd6e119ef9f839e26a7dbc
              • MD5 SHA1 SHA512 TLSH

              9764968A551D4734F147738AB1863B84

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9764968A551D4734F147738AB1863B84
              • Size 192B
              • SHA256 5a8921ff78c1dc229bfef87bae8d31e333d0d255ec145b31050b2795f4dfabee
              • MD5 SHA1 SHA512 TLSH

              B46811C17859FFB409CF0E904A4AA8F8

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
              • Size 170B
              • SHA256 5a050b547aa44f918b56c5b37d1c13f5a27db1427c074d838bc047b9b46e341c
              • MD5 SHA1 SHA512 TLSH

              a1.zip

              • Path C:\mbjagfdi\a1.zip
              • Size 494KB
              • SHA256 4cede60960f6aa68fbc431aabe95b921e2a6cda7fe02a91e411de682583efffa
              • MD5 SHA1 SHA512 SSDEEP TLSH

              a2.zip

              • Path C:\mbjagfdi\a2.zip
              • Size 1.3MB
              • SHA256 5ff7de6b6468626334f99c9af744b61d32c47fa7705e6fdc36b605cc6928e641
              • MD5 SHA1 SHA512 SSDEEP TLSH

              a3.zip

              • Path C:\mbjagfdi\a3.zip
              • Size 2KB
              • SHA256 2f1708e3962541e13ef3cff21ec4918dc07e91a0c1e084c0083a1ca4d435b78b
              • MD5 SHA1 SHA512 TLSH

              mbjagfdi

              • Path C:\mbjagfdi\mbjagfdi
              • Size 1.3MB
              • SHA256 ac047e9c2914fabafe6f652cfffb4bea5b2d29e79c749822810191d2d150fc64
              • MD5 SHA1 SHA512 SSDEEP TLSH

              mbjagfdi.exe

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

              memory/720-113-0x00000000061A0000-0x0000000006367000-memory.dmp