Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/07/2026, 12:20

General

  • Target
    Docusign.Client.msi
  • Size 9.6MB
  • Sample260717-phwktaev5z
  • SHA256 baa928ce7fc8ebff589831208fcd739667ce6704822792365a9f0a0647c3a606
  • 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.

  • 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
  • Badlisted process makes network request 1 IoCs

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

  • 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 Program Files directory 16 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 18 IoCs
  • Suspicious use of SendNotifyMessage 16 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\Docusign.Client.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2956
  • 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:4936
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 94B605201D55560453D311E275AEF8FB C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1176
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI15A1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240719625 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1676
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4168
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 93D5C4A57C828F144EEC4332CADC15A9
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5084
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 4AECDA5BC80D0A5B4AB76FD9E42EA63A E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4260
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1764
    • C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-tx88fe-relay.screenconnect.com&p=443&s=42943e05-ba1f-4e6e-b5a6-29193f766336&k=BgIAAACkAABSU0ExAAgAAAEAAQCFP6qCASFl97s9sBooCx%2f7cuSqOMPQpxdU5M4KLsp%2fu1H0JqeoHIcLysZvI1S5YX4KGvys4pSWx93%2bVfJY1shR94%2fNzxy5f%2bk%2bm2tmLiu7rxp3h7aRwVUt5dznguORUTCxEzmBVIJTK3TYwNfc4rpzOy7XM1Wlb83cIGmuTHhVKxzxQwak9PS7j8bnossYYSLc0%2bJUDtxXJv78cxB8DrZClmWafRUSvZBE3MIcfD6MeyEmy1sumbjxFF6uRTK2vHc8lw2jKfmiDSHg%2fPOFXOETm4pTgsTBYeis4iTh%2flo%2bCECF1kjSFKAPHPnX5%2fbsRfj%2fKrVAEbywORtAnTOInaDm"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5076
      • C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.WindowsClient.exe" "RunRole" "edfdd99e-0518-4dc1-9833-765383dc80a1" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4760

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e596410.rbs

          • Path C:\Config.Msi\e596410.rbs
          • Size 214KB
          • SHA256 f78b3389177998bb131ec8db442f0d20be228857f0c3dcca26666c7bccaa008e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\Client.en-US.resources
          • Size 64KB
          • SHA256 efdb0b4fcc38b52cbf72336bd107a814db8454003f3495de21e2026a148823ea
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.Client.dll
          • Size 399KB
          • SHA256 dbaffdb4d49e5dba309f54b1fc110c236042ac82ccde029b2917e189edaf84d3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.ClientService.dll
          • Size 78KB
          • SHA256 c8102fc3bda354653fc1c80b500de20d1a6bb274826334f76817f595434d2f0d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a33c975b07fc9db4713b6584965dd88b143d61b99c4d699dd326374b82dcd271
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.Core.dll
          • Size 553KB
          • SHA256 a98c8a07c4b819afb60d4372b2b8428d08cdd93571acb02750c8a17287ca613b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 416a10eb49239bc3aa1b32acfa31bb206a662ab9969043a7f5fe9d6455ebc07a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.WindowsClient.exe
          • Size 604KB
          • SHA256 a5c8ede4d24165797dcfbabbb85f62c44a79b058381e68249bf418a01fc67a1d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 838KB
          • SHA256 7a94f9bc46ebc6285b6a9d2ee989357705707c7e03831ce22e6fae7d8d7b471c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (6d7a317b05597443)\system.config
          • Size 968B
          • SHA256 7e8e58d222fce3b05c35271d4cbfd79f002fc694ff30eae6e9449fa73c8fafb7
          • MD5 SHA1 SHA512 TLSH

          MSI15A1.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI15A1.tmp
          • Size 1.1MB
          • SHA256 80c78c9e4eca39bdefdc9d47b9a8b49dfcc3fe1c0f135338584c7e83702d539a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI15A1.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI15A1.tmp-\ScreenConnect.Core.dll
          • Size 543KB
          • SHA256 553ace16fbc4f84d8c66ca9a56797fffd527e61215aae4c09d79a55b7653a774
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI15A1.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 7071c7fa49e4b177126d58835d7df40ec0a18424d5c9110242d612fefb1974df
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI15A1.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 d7610baba5b37a3c52bc19aae6440e7631d1184a3934ebe64f836716b427490d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI6B15.tmp

          • Path C:\Windows\Installer\MSI6B15.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59640f.msi

          • Path C:\Windows\Installer\e59640f.msi
          • Size 9.6MB
          • SHA256 baa928ce7fc8ebff589831208fcd739667ce6704822792365a9f0a0647c3a606
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 2ba1077b1fa7dd70baf913b9e3fd00b7780ac5a5f8efd88c1c9069b96e6abf6c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {4458bd03-e70a-4023-a404-d9a2d7a251b7}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{4458bd03-e70a-4023-a404-d9a2d7a251b7}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 6bd075a309a9540484fe6f06afd4d3e6f1c06426aeba864da9b966aa0e716bd9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1676-33-0x0000000005D40000-0x00000000062FA000-memory.dmp

          memory/1676-20-0x0000000003260000-0x000000000328E000-memory.dmp

          memory/1676-24-0x00000000052B0000-0x00000000052BA000-memory.dmp

          memory/1676-28-0x0000000005350000-0x00000000053DE000-memory.dmp

          memory/1676-32-0x00000000055D0000-0x000000000577E000-memory.dmp

          memory/4760-114-0x000000001BEA0000-0x000000001BF2E000-memory.dmp

          memory/4760-113-0x000000001BB00000-0x000000001BB68000-memory.dmp

          memory/4760-118-0x0000000003040000-0x0000000003058000-memory.dmp

          memory/4760-117-0x0000000001850000-0x0000000001868000-memory.dmp

          memory/4760-116-0x000000001C420000-0x000000001C5A8000-memory.dmp

          memory/4760-115-0x000000001C0E0000-0x000000001C28E000-memory.dmp

          memory/4760-112-0x0000000000E50000-0x0000000000EEA000-memory.dmp

          memory/5076-102-0x00000000040D0000-0x0000000004162000-memory.dmp

          memory/5076-84-0x0000000003DA0000-0x0000000003F4E000-memory.dmp

          memory/5076-101-0x0000000003FC0000-0x0000000004028000-memory.dmp

          memory/5076-106-0x00000000042C0000-0x0000000004395000-memory.dmp

          memory/5076-74-0x0000000001450000-0x0000000001468000-memory.dmp

          memory/5076-104-0x0000000003F50000-0x0000000003F91000-memory.dmp

          memory/5076-80-0x0000000003B20000-0x0000000003BAE000-memory.dmp

          memory/5076-97-0x0000000003D50000-0x0000000003DA0000-memory.dmp