Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/10/2026, 01:25

General

  • Target
    63c1057ce0510ec1.bin.msi
  • Size 16.2MB
  • Sample261025-bs4saaxyex
  • SHA256 63c1057ce0510ec13d51209b71579079dabc120ea92e8125965005edbd7fc99c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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.

  • 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
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 9 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\63c1057ce0510ec1.bin.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4332
  • 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:3144
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 903753433981E2F05347F8EFEF119F08 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5052
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9006.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240685218 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2796
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI975A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240686953 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:1036
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA015.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240689203 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:224
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4252
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C98C20F8D67D97C4E7268B52108F0184
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4924
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding FB62F221D544BD290EF594E1BA5B6C2C E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:944
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3216
    • C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-o84gk4-relay.screenconnect.com&p=443&s=329dad18-de27-4607-9fdd-1c054dd7ba2a&k=BgIAAACkAABSU0ExAAgAAAEAAQAZ9ENG2jHttCAUiWWm1ZG4pvuiylgihw7DCNY6zvuVuLXBHU2s5DiYlOCzYXde3ggospyCwB2MMcBS7dUPtiGu4%2f8LkcMJV9%2b9u3r29db637kKFtlaIegjd8JBUfC5AchBTn%2bTXJYEApajjWe1aL%2fJhtuTtVVo%2fw87d%2fiSQ7qcwPwOdyuuuM7XYsmCv%2frcP7v%2bubL3pIBNK3wCmOFhl6yjKm%2fSNTCyCGGFq43sushLQ9p3DQQb2c3rCVhUhz5wq3mEkPDtA6NVDDM69T3qFaTFqGqdUXaBFskTjRKiJNivscLgCwvTzlAN%2fOYrBDj8plca4WYDlX50wPtw%2bqfahFzC&c=lion&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
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2272
      • C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe" "RunRole" "f363f8da-44e6-4570-9e6f-584aab2a695b" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2972
      • C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe" "RunRole" "ada74b98-f4a9-46ae-a36e-88fe09a9a6f9" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:2980

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e58e2da.rbs

          • Path C:\Config.Msi\e58e2da.rbs
          • Size 214KB
          • SHA256 86bde139f574d9ed2fa38b45dbcb17f185353a6ca68501bf6b6d1a3eea17cea4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\system.config
          • Size 966B
          • SHA256 7569e70f9ff589657efdc370c85cf4ba88659a732b8470915019dfa7b682393b
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 eed8eb6184c4038589a791d9dea1226cd0c964e7de752781f428a1d876d8d59c
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 3c7831679eaaba75ed1198c62589ab59bc3c5023d99ac86ea5648db370b526fd
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 8336c22381235fa4c245cd44bda58ec29a1ef2d072f3c627b00355d6fa0bde8a
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 615d983e5085dabbe40bff8a9fe73953f79987d8e9352e9bb4f2edac2b0a8e84
          • 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

          MSI9006.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9006.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9006.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9006.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9006.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9006.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI975A.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI975A.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 390KB
          • SHA256 c469358d585fa9f1637a02d194e162e454d90b8dc7e4939f88b36e09b04a7a96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIE4DE.tmp

          • Path C:\Windows\Installer\MSIE4DE.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e58e2db.msi

          • Path C:\Windows\Installer\e58e2db.msi
          • Size 16.2MB
          • SHA256 63c1057ce0510ec13d51209b71579079dabc120ea92e8125965005edbd7fc99c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          1wt0k4av.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb664d3d47971f5)\1wt0k4av.newcfg
          • Size 883B
          • SHA256 c75839682b100235a46e6e1cac9f46724bc68bc19929c83d6beac2d005eb519d
          • MD5 SHA1 SHA512 TLSH

          s552izx5.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb664d3d47971f5)\s552izx5.newcfg
          • Size 683B
          • SHA256 82b391e827ec116e9769ca655d7ae20978f3be068ae0c75fb773bd50c4eea7b2
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb664d3d47971f5)\user.config
          • Size 520B
          • SHA256 405d2df99a59001ca3a8f56b8669c68d7df54d4270bef2c3bda1ce7561278fd4
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 665a366586eb72b732e1a0408a131d846b3900736ced23cbbc33b410c55352a3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {c8c8859f-aff5-4817-b735-98d174b50f23}_OnDiskSnapshotProp

          • Path \??\Volume{efdbfdc7-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c8c8859f-aff5-4817-b735-98d174b50f23}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 013e5769a8b223f14077e22c934bf2839ba080dda09adea09635d39a40950178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/224-111-0x0000000005200000-0x0000000005292000-memory.dmp

          memory/1036-74-0x0000000004E70000-0x0000000004ED8000-memory.dmp

          memory/2272-170-0x0000000003B60000-0x0000000003BB0000-memory.dmp

          memory/2272-205-0x0000000004120000-0x00000000041F6000-memory.dmp

          memory/2272-168-0x0000000003CF0000-0x0000000003ED0000-memory.dmp

          memory/2272-195-0x0000000003C50000-0x0000000003CEE000-memory.dmp

          memory/2272-164-0x00000000039B0000-0x0000000003B0A000-memory.dmp

          memory/2272-158-0x00000000011E0000-0x0000000001210000-memory.dmp

          memory/2272-203-0x0000000003BB0000-0x0000000003BF1000-memory.dmp

          memory/2796-41-0x00000000059D0000-0x0000000005BB0000-memory.dmp

          memory/2796-37-0x0000000005690000-0x00000000057EA000-memory.dmp

          memory/2796-33-0x0000000005400000-0x000000000540C000-memory.dmp

          memory/2796-29-0x0000000005410000-0x000000000543E000-memory.dmp

          memory/2796-42-0x0000000006160000-0x0000000006704000-memory.dmp

          memory/2972-221-0x0000000000160000-0x00000000002F6000-memory.dmp

          memory/2972-223-0x000000001B350000-0x000000001B4AA000-memory.dmp

          memory/2972-222-0x000000001AE50000-0x000000001AEEE000-memory.dmp

          memory/2972-226-0x000000001B690000-0x000000001B870000-memory.dmp

          memory/2972-227-0x000000001B870000-0x000000001B9F6000-memory.dmp

          memory/2972-228-0x000000001B2F0000-0x000000001B320000-memory.dmp

          memory/2972-229-0x0000000000AB0000-0x0000000000AF1000-memory.dmp