Analysis

  • max time kernel
    149s
  • max time network
    95s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/10/2026, 02:55

General

  • Target
    mosquitto-2.1.2-install-windows-x64.exe
  • Size 25.8MB
  • Sample261030-dew7dsas2k
  • SHA256 58008ad7a22ada0b4073afa415801746e027c5f583e4fa52d0f4e9193b98d6aa
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 15 IoCs
  • Stops running service(s) 4 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\mosquitto-2.1.2-install-windows-x64.exe
    "C:\Users\Admin\AppData\Local\Temp\mosquitto-2.1.2-install-windows-x64.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5632
    • C:\Windows\SysWOW64\sc.exe
      sc stop mosquitto
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2748
    • C:\Program Files\Mosquitto\VC_redist.x64.exe
      "C:\Program Files\Mosquitto\VC_redist.x64.exe" /quiet /norestart
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\Temp\{A576CA24-7449-4259-9F6D-1983CEC47502}\.cr\VC_redist.x64.exe
        "C:\Windows\Temp\{A576CA24-7449-4259-9F6D-1983CEC47502}\.cr\VC_redist.x64.exe" -burn.clean.room="C:\Program Files\Mosquitto\VC_redist.x64.exe" -burn.filehandle.attached=748 -burn.filehandle.self=752 /quiet /norestart
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2056
        • C:\Windows\Temp\{F8E17AE1-D150-40B2-B97E-059A7C4E80B9}\.be\VC_redist.x64.exe
          "C:\Windows\Temp\{F8E17AE1-D150-40B2-B97E-059A7C4E80B9}\.be\VC_redist.x64.exe" -q -burn.elevated BurnPipe.{EAA37715-7CF7-4204-9DB7-CB3DC7A78CBA} {DBA816D9-DC71-4EA0-8CE3-B92C6D1126ED} 2056
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:4328
    • C:\Program Files\Mosquitto\mosquitto.exe
      "C:\Program Files\Mosquitto\mosquitto.exe" install
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4592
    • C:\Windows\SysWOW64\sc.exe
      sc start mosquitto
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3560
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4512
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:2136
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4556
    • C:\Program Files\Mosquitto\mosquitto.exe
      "C:\Program Files\Mosquitto\mosquitto.exe" run
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3232

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          cjson.dll

          • Path C:\Program Files\Mosquitto\cjson.dll
          • Size 34KB
          • SHA256 03e5fc7812741175b9220dc6a85ad787401293fb4af69c264918a6f84d6f6f04
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libcrypto-3-x64.dll

          • Path C:\Program Files\Mosquitto\libcrypto-3-x64.dll
          • Size 5.1MB
          • SHA256 d3305d56f91a57e452150ea4efe9f121564ec9e5ef4e5a2c13ad451fc72d94e3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libmicrohttpd-dll.dll

          • Path C:\Program Files\Mosquitto\libmicrohttpd-dll.dll
          • Size 208KB
          • SHA256 d67cd1815dbb63c32c09327074141819c602909a43bf3a37afda5653b5b6cbff
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libssl-3-x64.dll

          • Path C:\Program Files\Mosquitto\libssl-3-x64.dll
          • Size 851KB
          • SHA256 1f1a226fabd4f6078dba24186a73714944a396ebac8ba4f10f14eb9e8e790d90
          • MD5 SHA1 SHA512 SSDEEP TLSH

          mosquitto.conf

          • Path C:\Program Files\Mosquitto\mosquitto.conf
          • Size 50KB
          • SHA256 0352bbc96a84ad378db11f1c23b3a191d1989e9a86879163c50b8599d7200374
          • MD5 SHA1 SHA512 SSDEEP TLSH

          mosquitto.exe

          • Path C:\Program Files\Mosquitto\mosquitto.exe
          • Size 335KB
          • SHA256 daa688dbc3685890999084da72f98ea0fae9557f7544a2cb96b44ef46563f2a2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          mosquitto_common.dll

          • Path C:\Program Files\Mosquitto\mosquitto_common.dll
          • Size 42KB
          • SHA256 b64ff95a71f1732610bd6c3719f728ead7c96339f1690959eea46dd46bba2680
          • MD5 SHA1 SHA512 SSDEEP TLSH

          vc_redist.x64.exe

          • Path C:\Program Files\Mosquitto\vc_redist.x64.exe
          • Size 24.4MB
          • SHA256 cc0ff0eb1dc3f5188ae6300faef32bf5beeba4bdd6e8e445a9184072096b713b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsm53B6.tmp\System.dll
          • Size 12KB
          • SHA256 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          modern-wizard.bmp

          • Path C:\Users\Admin\AppData\Local\Temp\nsm53B6.tmp\modern-wizard.bmp
          • Size 25KB
          • SHA256 3ad2dc318056d0a2024af1804ea741146cfc18cc404649a44610cbf8b2056cf2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          nsDialogs.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsm53B6.tmp\nsDialogs.dll
          • Size 9KB
          • SHA256 89a82c4849c21dfe765052681e1fad02d2d7b13c8b5075880c52423dca72a912
          • MD5 SHA1 SHA512 SSDEEP TLSH

          VC_redist.x64.exe

          • Path C:\Windows\Temp\{A576CA24-7449-4259-9F6D-1983CEC47502}\.cr\VC_redist.x64.exe
          • Size 670KB
          • SHA256 568c9ba533624084ea18f7a562b4aa2249ed4e41281524a061a0d0b1008cf6bd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          logo.png

          • Path C:\Windows\Temp\{F8E17AE1-D150-40B2-B97E-059A7C4E80B9}\.ba\logo.png
          • Size 1KB
          • SHA256 335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef
          • MD5 SHA1 SHA512 TLSH

          wixstdba.dll

          • Path C:\Windows\Temp\{F8E17AE1-D150-40B2-B97E-059A7C4E80B9}\.ba\wixstdba.dll
          • Size 215KB
          • SHA256 e921f69b9fb4b5ad4691809d06896c5f1d655ab75e0ce94a372319c243c56d4e
          • MD5 SHA1 SHA512 SSDEEP TLSH