Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240708-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240708-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/07/2024, 14:04

General

  • Target
    XML_00000S1D4S555555S4D111111S.exe
  • Size 5.4MB
  • Sample240709-rdahwsxdpk
  • SHA256 e8138e2cd06e85a73dd8993cfe4a86d14e96583a372df10aa7aeed7dca810201
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Sets service image path in registry 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in System32 directory 6 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 22 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 64 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 25 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\XML_00000S1D4S555555S4D111111S.exe
    "C:\Users\Admin\AppData\Local\Temp\XML_00000S1D4S555555S4D111111S.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5036
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\7e83ca7fd57c5b3c\setup.msi"
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:1592
  • 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 WriteProcessMemory
    PID:3708
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 56CEB7C1888E6D42D33600F5F5F45801 C
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:112
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID09E.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240636234 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        PID:4952
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4772
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CB94D6720B0F18FB8AD9BAEBFE008AFB
        2⤵
        • Loads dropped DLL
        PID:4128
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9B180C16EEB053A159B234A15A3745A0 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        PID:3292
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2960
    • C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-cd0t6w-relay.screenconnect.com&p=443&s=940c90d6-8601-43b2-a739-e91495b73d92&k=BgIAAACkAABSU0ExAAgAAAEAAQDVZI9kSjK%2f54LXPZ9FKsay04RE4khdBsPLarOPut1YGRVEY9ECyKPHIIJMiaiU0axUm3ezwYJznlj81CFhwxAouBhlUzP%2bJOezmldQBOWa5L2ggOj8Ag24O3%2fvb5JzF6fYGxp8SmBG6MlSMxeS8V6%2b%2f%2b9ZCYaHMlb7DLJtt343rt%2bcPprTLYW7ZqYSVaL%2f6skDJAr%2bjkEfZOWYkiNKIgJI7dv1LcB6ZOX8Jax7uX90y7R%2bY3Kp%2bQyn6xk0qjV4mPs8L4DG8UKztHRzJJDlLfHrnwd7bKTlgI5HsZqJZm%2fpn5TrAJrK4n19PUQMseZZiMSMmRUsKIBsAwfn1cDeyDq7"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4332
      • C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.WindowsClient.exe" "RunRole" "176a2e81-cbac-4ea1-b9ff-b6d1d5f2019f" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4544
      • C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.WindowsClient.exe" "RunRole" "d6a53954-abef-48d9-ae61-49cac25a32f1" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4180
      • C:\Windows\system32\WindowsPowershell\v1.0\powershell.exe
        "WindowsPowershell\v1.0\powershell.exe" -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -File "C:\Windows\TEMP\ScreenConnect\24.1.9.8915\cd15155f-2c1f-4936-9551-f12ba98513c8run.ps1"
        2⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:4060
      • C:\Windows\system32\WindowsPowershell\v1.0\powershell.exe
        "WindowsPowershell\v1.0\powershell.exe" -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -File "C:\Windows\TEMP\ScreenConnect\24.1.9.8915\c9dc14d2-df4a-4173-8632-2d576cff8c56run.ps1"
        2⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:4712

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          e580a9b.rbs

          • Path C:\Config.Msi\e580a9b.rbs
          • Size 214KB
          • SHA256 40b7738e37d66d4b5171de2879c7c7e2be0f06cf1bbbf6746f9c00522270b44f
          • MD5 SHA1 SHA512 SSDEEP

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\Client.en-US.resources
          • Size 48KB
          • SHA256 f8398a235b29af6569f2b116e0299b95512d042f5a4cd38c98c79729a5fbdb9d
          • MD5 SHA1 SHA512 SSDEEP

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\Client.resources
          • Size 26KB
          • SHA256 de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 032450cd037d9e0eec49e0b4ff44073d539775633fb4af6fd76d4cb19116aac9
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 d17cf13612039f6a4ca17b56c32399ccbe279a499c8d2f8e910b1fd6f4fff2b1
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 e54963cb63c9e471e2d3d59e55e4c7aeedccafdd616b99c4b3af230608e4bcc9
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.WindowsClient.exe
          • Size 584KB
          • SHA256 316bbf433f1f803d113adf060c528ccc636656cee26b90f5fea011c1c73c7d16
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 822KB
          • SHA256 7a80e8f654b9ddb15dda59ac404d83dbaf4f6eafafa7ecbefc55506279de553d
          • MD5 SHA1 SHA512 SSDEEP

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (7e83ca7fd57c5b3c)\system.config
          • Size 968B
          • SHA256 ab7f6abcdb327542fa97c88f40d9fad495b9929f6da3a25a27395d1c6279a6cd
          • MD5 SHA1 SHA512

          MSID09E.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSID09E.tmp
          • Size 1.1MB
          • SHA256 4da6c507c746cd07ca4546e723d0d145bbf4d26ff8de13f1a0750ef323a89a2e
          • MD5 SHA1 SHA512 SSDEEP

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID09E.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID09E.tmp-\ScreenConnect.Core.dll
          • Size 533KB
          • SHA256 a843b3a4549c43ef5bd8470cacf5d2f0f3b3c8110441fcc10079facc7db3de29
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID09E.tmp-\ScreenConnect.InstallerActions.dll
          • Size 21KB
          • SHA256 588d3a5e1b91d3756f74ea61c9c1b5f7871af924fab469cebb579f8aeb2fc135
          • MD5 SHA1 SHA512 SSDEEP

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID09E.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 a1edd67a131505cc84d76601474c53874a56b5437b835838e4a866e20f6cd264
          • MD5 SHA1 SHA512 SSDEEP

          setup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\7e83ca7fd57c5b3c\setup.msi
          • Size 7.9MB
          • SHA256 c79948a91d94b8552371bc9bb45575bf8ae08910f735faa90f2178d59dc7f1e6
          • MD5 SHA1 SHA512 SSDEEP

          MSIBA4.tmp

          • Path C:\Windows\Installer\MSIBA4.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP

          cd15155f-2c1f-4936-9551-f12ba98513c8run.ps1

          • Path C:\Windows\TEMP\ScreenConnect\24.1.9.8915\cd15155f-2c1f-4936-9551-f12ba98513c8run.ps1
          • Size 861B
          • SHA256 d04e7e776ea28af69381e346a1bf86be5f5e4715003f7048783e7d1f049b1bd2
          • MD5 SHA1 SHA512

          __PSScriptPolicyTest_anunmxqs.0os.ps1

          • Path C:\Windows\Temp\__PSScriptPolicyTest_anunmxqs.0os.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          powershell.exe.log

          • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
          • Size 3KB
          • SHA256 88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 9d5367afff64011b621c73c310c4b8bda206ec02726aadc0b17572d90888b25d
          • MD5 SHA1 SHA512

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 23.7MB
          • SHA256 2bc4b39ec05341460955d8bf0f322bbf9179c79809ecae09d7bf08fe7d7a9dc2
          • MD5 SHA1 SHA512 SSDEEP

          {75857a26-368c-4a82-bd22-b1289e60aeb1}_OnDiskSnapshotProp

          • Path \??\Volume{9635fa43-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{75857a26-368c-4a82-bd22-b1289e60aeb1}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 10fc76942a9ea672888100f30d188289770561fd8412fb1c0c457b8b3cade01d
          • MD5 SHA1 SHA512 SSDEEP

          memory/4060-175-0x0000013CFA8B0000-0x0000013CFA8D2000-memory.dmp

          memory/4332-135-0x0000000003E50000-0x0000000003F22000-memory.dmp

          memory/4332-130-0x0000000003B20000-0x0000000003B56000-memory.dmp

          memory/4332-131-0x0000000003C00000-0x0000000003C92000-memory.dmp

          memory/4332-133-0x0000000003B60000-0x0000000003BA1000-memory.dmp

          memory/4332-126-0x0000000003910000-0x0000000003960000-memory.dmp

          memory/4332-116-0x0000000003620000-0x0000000003638000-memory.dmp

          memory/4544-162-0x000000001B820000-0x000000001B9A6000-memory.dmp

          memory/4544-160-0x000000001B2A0000-0x000000001B32C000-memory.dmp

          memory/4544-161-0x000000001B4E0000-0x000000001B68A000-memory.dmp

          memory/4544-159-0x000000001AED0000-0x000000001AF06000-memory.dmp

          memory/4544-156-0x00000000003B0000-0x0000000000446000-memory.dmp

          memory/4544-164-0x000000001B230000-0x000000001B248000-memory.dmp

          memory/4544-163-0x00000000025C0000-0x00000000025D8000-memory.dmp

          memory/4952-45-0x00000000023C0000-0x00000000023CC000-memory.dmp

          memory/4952-53-0x0000000004A30000-0x0000000004BDA000-memory.dmp

          memory/4952-49-0x00000000047F0000-0x000000000487C000-memory.dmp

          memory/4952-41-0x0000000004730000-0x000000000475E000-memory.dmp

          memory/5036-6-0x00000000054B0000-0x00000000054D2000-memory.dmp

          memory/5036-1-0x0000000002E10000-0x0000000002E18000-memory.dmp

          memory/5036-3-0x00000000057B0000-0x0000000005AA4000-memory.dmp

          memory/5036-2-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/5036-9-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/5036-4-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/5036-13-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/5036-5-0x0000000005410000-0x000000000549C000-memory.dmp

          memory/5036-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

          memory/5036-7-0x00000000054D0000-0x000000000567A000-memory.dmp

          memory/5036-8-0x0000000006060000-0x0000000006604000-memory.dmp