Analysis

  • max time kernel
    900s
  • max time network
    873s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/08/2026, 17:46

General

  • Target
    NewUp.ClientSetup.msi
  • Size 1.8MB
  • Sample260828-wcnrcacq21
  • SHA256 073f0075283ddf39085fad8024dccaafa1c8c3b98f42c7cbbb0d2f02821e97c2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 25 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Program Files directory 12 IoCs
  • Drops file in Windows directory 20 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 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\NewUp.ClientSetup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2744
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • 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:5268
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B5C68F32FD4B7645421C215C4D45E5DB C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1536
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4F10.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734265 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4684
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1156
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0C332422D7A3DE0E77FE4496132EC261
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2708
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1DD371C6DC480A6A3CB3A25E74A53CAE E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2808
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4520
    • C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=abs.wales&p=8041&s=d32dbf4a-2f04-449f-a267-7dd8faed4f50&k=BgIAAACkAABSU0ExAAgAAAEAAQDBDBXqpk9Kx4Qm%2bJTtb1UObhg2VTi1LC7b4xXxhkqKL7S%2fN6I%2bD2%2bS1L2rKh1MKOXCps7p9FgQLJKL205yyuUBQBWUYPu0nXIVDQ1bdaKGwqx00hh6gc9L6AiPV8LolZdaW4kSxvDSchPZxD6ZmES67tQ9gdADJl52xvZgX%2bj1eTpVk756wVPOomjAhkGU98UC8eNxesozUqhkVAg5FXahq%2bcPR8t%2bTphcW4dRAgDG6QzM3xtK4Axj0z4x6FCEPDLUCMWJgNpoRrOyDvIBTE82oLhPDLNwHjtAMW6g6%2feRtguRPckaLSzk4RQjfvGUN997l%2ffF4Et2e4ygBJhyEZPO&t=&c=NewBoy&c=NewBoy&c=&c=&c=&c=&c=&c="
      1⤵
      • 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:2980
      • C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.WindowsClient.exe" "RunRole" "b2481f0d-ecd0-416c-8d2f-5bfe63706ecb" "User"
        2⤵
        • Executes dropped EXE
        PID:2952
      • C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.WindowsClient.exe" "RunRole" "6ffda0a7-306a-465d-9fa7-4338dcfc4c0f" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:1208
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:4224
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
          PID:2552
        • C:\Windows\System32\SecurityHealthHost.exe
          \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
          1⤵
            PID:256

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                e5998fb.rbs

                • Path C:\Config.Msi\e5998fb.rbs
                • Size 212KB
                • SHA256 82280d42f84c2fbe6c371df436b11a4e681c434658ddcdcdf7fcb0a68db25e8e
                • MD5 SHA1 SHA512 SSDEEP TLSH

                Client.Override.en-US.resources

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\Client.Override.en-US.resources
                • Size 308B
                • SHA256 25816b0a68a814e47d7463a2c9ea06d08f115d0e4c92bad8e2f3457d280348e6
                • MD5 SHA1 SHA512 TLSH

                Client.Override.resources

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\Client.Override.resources
                • Size 241B
                • SHA256 b222ffd3bb91120201046546dd5fde1565c4e5cc6b47060419e1778e833fd4db
                • MD5 SHA1 SHA512 TLSH

                Client.en-US.resources

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\Client.en-US.resources
                • Size 33KB
                • SHA256 3d42f719c28b1c3eebd99bc17ba7793330ce0099fc0dbfef985ecd523cddae70
                • MD5 SHA1 SHA512 SSDEEP TLSH

                Client.resources

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\Client.resources
                • Size 2KB
                • SHA256 64da2cfeacfcba97cad701da9288618bc42a20f69dd4a0fe5652ce49ef92524c
                • MD5 SHA1 SHA512 TLSH

                ScreenConnect.Client.dll

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.Client.dll
                • Size 146KB
                • SHA256 49e4ee62deec4d4aee96a4ba44d05d9bf2d0a9933160620f6d24e54e309bfb60
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ScreenConnect.ClientService.dll

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.ClientService.dll
                • Size 30KB
                • SHA256 7cf638cc92d30d774a0d059b9524d2c62b66ff44c567945cab68888392ab3964
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ScreenConnect.ClientService.exe

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.ClientService.exe
                • Size 88KB
                • SHA256 259dd88263bacfaa4c98686a1bb5ac1581d87f6788f23d145086e369126a34b2
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ScreenConnect.Windows.dll

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.Windows.dll
                • Size 1.7MB
                • SHA256 567685ab504a98ce5079890fc850d4032ef0cbd5a53226fbdaa2bc77eda7f73a
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ScreenConnect.WindowsClient.exe

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.WindowsClient.exe
                • Size 534KB
                • SHA256 f65a0d67c2398cd51c8d4cd4b95be81db4efe69ba9bda3d958e2b52becf216b3
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ScreenConnect.WindowsClient.exe.config

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\ScreenConnect.WindowsClient.exe.config
                • Size 266B
                • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
                • MD5 SHA1 SHA512 TLSH

                app.config

                • Path C:\Program Files (x86)\ScreenConnect Client (0ad06670a691ca1d)\app.config
                • Size 1KB
                • SHA256 a38ebc0343ad7eae9749feafe11b534e4beca81916646d9f3eda3f00e7bed751
                • MD5 SHA1 SHA512 TLSH

                MSI4F10.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\MSI4F10.tmp
                • Size 336KB
                • SHA256 0026221a5cf41719e401da2657addbeb7190d98809ddbd09ea0dd063524597e7
                • MD5 SHA1 SHA512 SSDEEP TLSH

                Microsoft.Deployment.WindowsInstaller.dll

                • Path C:\Users\Admin\AppData\Local\Temp\MSI4F10.tmp-\Microsoft.Deployment.WindowsInstaller.dll
                • Size 172KB
                • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ScreenConnect.Core.dll

                • Path C:\Users\Admin\AppData\Local\Temp\MSI4F10.tmp-\ScreenConnect.Core.dll
                • Size 378KB
                • SHA256 1b15d7c3465ca779ec46b83704412edabfa8d47f32fa545080d613d1f10040c4
                • MD5 SHA1 SHA512 SSDEEP TLSH

                ScreenConnect.InstallerActions.dll

                • Path C:\Users\Admin\AppData\Local\Temp\MSI4F10.tmp-\ScreenConnect.InstallerActions.dll
                • Size 17KB
                • SHA256 584ccce1c440c597712ef9bff7e22da4c4e169bebd5f2db4d3cca4eea3e74759
                • MD5 SHA1 SHA512 SSDEEP TLSH

                MSI9E6A.tmp

                • Path C:\Windows\Installer\MSI9E6A.tmp
                • Size 202KB
                • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
                • MD5 SHA1 SHA512 SSDEEP TLSH

                e5998fa.msi

                • Path C:\Windows\Installer\e5998fa.msi
                • Size 1.8MB
                • SHA256 073f0075283ddf39085fad8024dccaafa1c8c3b98f42c7cbbb0d2f02821e97c2
                • MD5 SHA1 SHA512 SSDEEP TLSH

                metadata-2

                • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                • Size 26.1MB
                • SHA256 7c71d6d382841d523c8464ef57dfabb46643aace9f91950bcb57fb889e823673
                • MD5 SHA1 SHA512 SSDEEP TLSH

                {f05cc580-1171-41c8-a633-5b591f7d78c7}_OnDiskSnapshotProp

                • Path \??\Volume{c4ee2a5b-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{f05cc580-1171-41c8-a633-5b591f7d78c7}_OnDiskSnapshotProp
                • Size 6KB
                • SHA256 6520dce19f8d050d7448a8392859aee078572ff06f3a724e3fa3970771a508af
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/2952-113-0x0000000002780000-0x000000000278E000-memory.dmp

                memory/2952-108-0x00000000027A0000-0x00000000027CA000-memory.dmp

                memory/2952-107-0x00000000005F0000-0x000000000067A000-memory.dmp

                memory/2952-110-0x000000001B380000-0x000000001B3E4000-memory.dmp

                memory/2952-111-0x000000001B7D0000-0x000000001B988000-memory.dmp

                memory/2952-112-0x000000001B990000-0x000000001BB18000-memory.dmp

                memory/2980-90-0x0000000004B40000-0x0000000004B90000-memory.dmp

                memory/2980-89-0x0000000004AB0000-0x0000000004B3A000-memory.dmp

                memory/2980-70-0x0000000001B60000-0x0000000001B6E000-memory.dmp

                memory/2980-76-0x0000000004110000-0x000000000413A000-memory.dmp

                memory/2980-83-0x0000000004440000-0x00000000045F8000-memory.dmp

                memory/2980-84-0x0000000004600000-0x0000000004788000-memory.dmp

                memory/4684-22-0x0000000005A20000-0x0000000005A84000-memory.dmp

                memory/4684-14-0x0000000005900000-0x000000000592E000-memory.dmp

                memory/4684-18-0x0000000005940000-0x000000000594A000-memory.dmp