Analysis

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

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/06/2026, 06:18

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260620-g2sdhaez21
  • SHA256 6e0355bd3ec9ae09014bc2f2c5a04c714b7967f80faf64af1e5209dadac5611d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 5 IoCs

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

  • 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.

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 10 IoCs
  • 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.

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 13 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 9 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 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\7fae5b2bdfcc0a98\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4520
  • 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:2828
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 35F107DD2EB0FBAAA9198154FD20DE97 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4588
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE162.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240706015 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3388
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE4AF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240706750 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4400
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIDD68.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240770406 19 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3252
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3000
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C0668F1B9FC25F3F8FC9A15D819752F4
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4824
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6A39E0E0719E4E20C4750BF38ED269C1 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3980
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1976
    • C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-h678f0-relay.screenconnect.com&p=443&s=26b026bb-082e-463f-ae19-c8d648a8eff9&k=BgIAAACkAABSU0ExAAgAAAEAAQBt2EZdNTM1uscH4sTdPqQEOgxwv5ixTDICXSU6bu77K%2bL%2bcAebujYTmvMTx78leNpMOXSr4rujXETfI5xVuU0tire73qweyRPf1daeIEF7zZscbFucV7lLPB24jkJ62mzMncIocK3jFI8ly79ZnXBdbSoUUrRvUBMnXEzpaO44We8z4A%2bUhQvggAjzD6%2bXeXIUzCNXfXnXbNfyC5aWjWjSi4QS7Bfs5Xn6p9kJg%2fVi94y40rEis1xFj31Gnk8%2fob8OJa%2f5nabij0U5Hgxc%2biCLS50cjz2xyQ59kPzLmuEZiOi0SoOysdAg7mGL27MlGRf%2fbSnrv68r5iT1RZiu78G2&c=aubrey&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • 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:4132
      • C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.WindowsClient.exe" "RunRole" "88fa5501-6126-4c9e-bcd2-da1be77909f0" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2244
      • C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.WindowsClient.exe" "RunRole" "5f86f0c4-11a7-44fd-81bc-24f4394949ce" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:904

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a1ace.rbs

          • Path C:\Config.Msi\e5a1ace.rbs
          • Size 214KB
          • SHA256 89c9ef6446c97967e443473318b5472ee934d44645ef97e25e38c395d2ed04c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 44d7c87abe55a23318a1627a845a999acc268cc4ece97e2e80849ad869809ee1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 b607976c1aa7e804d8d53993ddf81ebf4b85117a12d7b4e9ee228e907e1f4025
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 4cfe96e8e6d4cc96bc0f9c7935ab32531deeb0f52a8c39f739da928d6f5d344b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 5c98fa479fd677e900bd53f15c3969deeb99c109e026f169862a6458a55bddcb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c1a6e533825b7adb9c2312c1674a5506fd3db460a15443d82c58b5037c68a9f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 f340a7376628a7a27ff45dd479cb5c09e072e79bbd318deef39325c29541dbdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7fae5b2bdfcc0a98)\system.config
          • Size 962B
          • SHA256 37e1632e1b3cb4140bb693d31d6a176fd6d02ab04bd1af59b3322c8cc36803df
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 a142c5958a4be5f2680631d6fe4524c67a8ea6b6553946f322c040938514ca1e
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 a2cba3dc14928bffbcd3f3ed122bf7b8f42a19e59fcf6860bd1bf48e4bb1fab0
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 a00421b8eb13565ab7d7593163c78f1b24082728919851cc05315e7cae2f00ea
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 e84cd5659e3006218b01aca6ad69b58c6ecae7a4806275b3e2ce4f3868a03ac6
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 746B
          • SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
          • MD5 SHA1 SHA512 TLSH

          MSIE162.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE162.tmp
          • Size 1.1MB
          • SHA256 71155d6834aa9d39bdbe3c1b1791f7e59c263b3be61ee4e4d645a29fdee7dd27
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE162.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE162.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 3e335088245a44e7d929a108a3fec2985df749f697fdd7c1815abefe9a1effb0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE162.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 52d52f271a4314bece5f573642fd41f9e71724796e250a96ca61470ba71b4d82
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE162.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 e0cf56d4793a7ac0ede73d5229c1cf8a9eb0f8352a61ecdd42ee4800a42ceaef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE4AF.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIE4AF.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 8e0d135002984f0dbae6575086d9a72d51aa8dd58e53a9e0eba58c0d5bc7678e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.3.11.9650\7fae5b2bdfcc0a98\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 e6da85a766d6f34943014daf69e5af80cfeefe20e36f92e614f3fbacfb10b67c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI1C83.tmp

          • Path C:\Windows\Installer\MSI1C83.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          drq0jll5.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7fae5b2bdfcc0a98)\drq0jll5.newcfg
          • Size 683B
          • SHA256 209f0543471828e434a0b58bbf2314f7a63a3fa4b60f03a8feab94ed5215c20d
          • MD5 SHA1 SHA512 TLSH

          gvg3yjmx.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7fae5b2bdfcc0a98)\gvg3yjmx.newcfg
          • Size 882B
          • SHA256 7556144f7c0073e5cfb60a052a64520e0f601a542fc1f359c38398a804994783
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (7fae5b2bdfcc0a98)\user.config
          • Size 520B
          • SHA256 2cfe0eacf0f7f28e9dd94755eecc281865ecc1855306a5623aff34cf084a2a01
          • MD5 SHA1 SHA512 TLSH

          memory/904-234-0x0000000002D00000-0x0000000002D41000-memory.dmp

          memory/2244-231-0x000000001B790000-0x000000001B940000-memory.dmp

          memory/2244-232-0x00000000026A0000-0x00000000026BA000-memory.dmp

          memory/2244-233-0x000000001C750000-0x000000001C8D6000-memory.dmp

          memory/2244-230-0x000000001B540000-0x000000001B5D4000-memory.dmp

          memory/2244-228-0x0000000002840000-0x00000000028AC000-memory.dmp

          memory/2244-227-0x0000000000560000-0x000000000060C000-memory.dmp

          memory/3388-43-0x0000000002A00000-0x0000000002A0C000-memory.dmp

          memory/3388-39-0x0000000002A10000-0x0000000002A3E000-memory.dmp

          memory/3388-47-0x0000000004E40000-0x0000000004ED4000-memory.dmp

          memory/3388-51-0x0000000005090000-0x0000000005240000-memory.dmp

          memory/4132-210-0x00000000042E0000-0x0000000004321000-memory.dmp

          memory/4132-171-0x0000000004240000-0x00000000042D4000-memory.dmp

          memory/4132-207-0x00000000043F0000-0x000000000445C000-memory.dmp

          memory/4132-208-0x00000000046E0000-0x0000000004772000-memory.dmp

          memory/4132-165-0x0000000001C90000-0x0000000001CAA000-memory.dmp

          memory/4132-175-0x0000000004490000-0x0000000004640000-memory.dmp

          memory/4132-182-0x0000000004330000-0x0000000004380000-memory.dmp

          memory/4132-212-0x00000000048C0000-0x0000000004996000-memory.dmp

          memory/4400-83-0x0000000005030000-0x0000000005058000-memory.dmp

          memory/4652-1-0x0000000003870000-0x0000000003878000-memory.dmp

          memory/4652-3-0x0000000003980000-0x000000000398C000-memory.dmp

          memory/4652-8-0x0000000006040000-0x0000000006050000-memory.dmp

          memory/4652-4-0x0000000006050000-0x00000000060E4000-memory.dmp

          memory/4652-5-0x0000000005FF0000-0x0000000006018000-memory.dmp

          memory/4652-0-0x0000000006040000-0x0000000006050000-memory.dmp

          memory/4652-6-0x00000000060E0000-0x0000000006290000-memory.dmp

          memory/4652-7-0x0000000006840000-0x0000000006DE4000-memory.dmp

          memory/4652-2-0x0000000006040000-0x0000000006050000-memory.dmp