ecda70414eaa3354ef877c71c445d49294f142fc694e81f0002d385ff1060d02

Analysis

max time kernel
149s
max time network
146s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/08/2026, 12:27

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample260802-pm3jxsshja
SHA256 ecda70414eaa3354ef877c71c445d49294f142fc694e81f0002d385ff1060d02
MD5 9781c451c454948eab8cc18ede206b23
SHA1 ba7c775e2451baca21318eeb57880d8c92f2478a
SHA512 7f2128788945c1b8b45cdd93ecad1402b8f7b5e18e5ea60972148fa96a7efe8c0a00d32d7dea0f57baefdfff3ee871b8ca82a2454b8b1a0cd033c468e6b6767e
SSDEEP 98304:bzIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:bhfefPtHxcp9ym3nltDUJV
TLSH
T1B946E101B3D296B5D0BF0678D87B46656B35BD048351CBAF5394B93E2E32BC04E3636A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

discovery ransomware revoked_codesign

Malware Config

Signatures

Signed with revoked ConnectWise certificate 1 IoCs

Binary is signed using a ConnectWise certificate revoked for key compromise.

revoked_codesign

resource	yara_rule
behavioral2/memory/5752-2-0x0000000005360000-0x0000000005652000-memory.dmp	revoked_cert_connectwise

Loads dropped DLL 11 IoCs

pid	Process
5912	MsiExec.exe
2984	rundll32.exe
2984	rundll32.exe
2984	rundll32.exe
2984	rundll32.exe
2984	rundll32.exe
2984	rundll32.exe
2984	rundll32.exe
2984	rundll32.exe
2984	rundll32.exe
4780	MsiExec.exe

Enumerates connected drives 3 TTPs 46 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\Client.Override.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\Client.Override.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (ec47a74386a145bd)\Client.resources	msiexec.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File created	C:\Windows\SystemTemp\~DFC0ABB69C44E771D2.TMP	msiexec.exe
File created	C:\Windows\Installer\SourceHash{F399D4D1-AD07-FBD2-2BC0-13713EBBF6AF}	msiexec.exe
File created	C:\Windows\Installer\e59fbae.msi	msiexec.exe
File created	C:\Windows\SystemTemp\~DFB5A70791DEF4F652.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DFBDF5FB2D69A21912.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI447.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\{F399D4D1-AD07-FBD2-2BC0-13713EBBF6AF}\DefaultIcon	msiexec.exe
File created	C:\Windows\SystemTemp\~DFF6C2BD3E04DE9B39.TMP	msiexec.exe
File created	C:\Windows\Installer\e59fbac.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\e59fbac.msi	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI4A6.tmp	msiexec.exe
File created	C:\Windows\Installer\{F399D4D1-AD07-FBD2-2BC0-13713EBBF6AF}\DefaultIcon	msiexec.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MsiExec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MsiExec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ScreenConnect.ClientSetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	vssvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Key deleted	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27	msiexec.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\28	msiexec.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\CLASSES\LOCAL SETTINGS\MUICACHE\27\52C64B7E	msiexec.exe

Modifies registry class 32 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\ec47a74386a145bd\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-ec47a74386a145bd	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-ec47a74386a145bd\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (ec47a74386a145bd)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\SourceList\Media\1 = ";"	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\Clients = 3a0000000000	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-ec47a74386a145bd\UseOriginalUrlEncoding = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-ec47a74386a145bd	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\1D4D993F70DA2DBFB20C3117E3BB6FFA\Full	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\Language = "1033"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\Assignment = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\SourceList\Media	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-ec47a74386a145bd\shell	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\InstanceType = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\PackageCode = "1D4D993F70DA2DBFB20C3117E3BB6FFA"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\DeploymentFlags = "3"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\ProductName = "ScreenConnect Client (ec47a74386a145bd)"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\ProductIcon = "C:\\Windows\\Installer\\{F399D4D1-AD07-FBD2-2BC0-13713EBBF6AF}\\DefaultIcon"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\AuthorizedLUAApp = "0"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\SourceList	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\SourceList\Net	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-ec47a74386a145bd\shell\open	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\AdvertiseFlags = "388"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\ec47a74386a145bd\\"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-ec47a74386a145bd\URL Protocol	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\26C2F518481A46ACCE747A34681A54DB\1D4D993F70DA2DBFB20C3117E3BB6FFA	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-ec47a74386a145bd\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-ec47a74386a145bd\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\1D4D993F70DA2DBFB20C3117E3BB6FFA	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\1D4D993F70DA2DBFB20C3117E3BB6FFA\Version = "419561476"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\26C2F518481A46ACCE747A34681A54DB	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4368	msiexec.exe
4368	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5752	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	1960	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1960	msiexec.exe
Token: SeSecurityPrivilege	4368	msiexec.exe
Token: SeCreateTokenPrivilege	1960	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1960	msiexec.exe
Token: SeLockMemoryPrivilege	1960	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1960	msiexec.exe
Token: SeMachineAccountPrivilege	1960	msiexec.exe
Token: SeTcbPrivilege	1960	msiexec.exe
Token: SeSecurityPrivilege	1960	msiexec.exe
Token: SeTakeOwnershipPrivilege	1960	msiexec.exe
Token: SeLoadDriverPrivilege	1960	msiexec.exe
Token: SeSystemProfilePrivilege	1960	msiexec.exe
Token: SeSystemtimePrivilege	1960	msiexec.exe
Token: SeProfSingleProcessPrivilege	1960	msiexec.exe
Token: SeIncBasePriorityPrivilege	1960	msiexec.exe
Token: SeCreatePagefilePrivilege	1960	msiexec.exe
Token: SeCreatePermanentPrivilege	1960	msiexec.exe
Token: SeBackupPrivilege	1960	msiexec.exe
Token: SeRestorePrivilege	1960	msiexec.exe
Token: SeShutdownPrivilege	1960	msiexec.exe
Token: SeDebugPrivilege	1960	msiexec.exe
Token: SeAuditPrivilege	1960	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1960	msiexec.exe
Token: SeChangeNotifyPrivilege	1960	msiexec.exe
Token: SeRemoteShutdownPrivilege	1960	msiexec.exe
Token: SeUndockPrivilege	1960	msiexec.exe
Token: SeSyncAgentPrivilege	1960	msiexec.exe
Token: SeEnableDelegationPrivilege	1960	msiexec.exe
Token: SeManageVolumePrivilege	1960	msiexec.exe
Token: SeImpersonatePrivilege	1960	msiexec.exe
Token: SeCreateGlobalPrivilege	1960	msiexec.exe
Token: SeCreateTokenPrivilege	1960	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1960	msiexec.exe
Token: SeLockMemoryPrivilege	1960	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1960	msiexec.exe
Token: SeMachineAccountPrivilege	1960	msiexec.exe
Token: SeTcbPrivilege	1960	msiexec.exe
Token: SeSecurityPrivilege	1960	msiexec.exe
Token: SeTakeOwnershipPrivilege	1960	msiexec.exe
Token: SeLoadDriverPrivilege	1960	msiexec.exe
Token: SeSystemProfilePrivilege	1960	msiexec.exe
Token: SeSystemtimePrivilege	1960	msiexec.exe
Token: SeProfSingleProcessPrivilege	1960	msiexec.exe
Token: SeIncBasePriorityPrivilege	1960	msiexec.exe
Token: SeCreatePagefilePrivilege	1960	msiexec.exe
Token: SeCreatePermanentPrivilege	1960	msiexec.exe
Token: SeBackupPrivilege	1960	msiexec.exe
Token: SeRestorePrivilege	1960	msiexec.exe
Token: SeShutdownPrivilege	1960	msiexec.exe
Token: SeDebugPrivilege	1960	msiexec.exe
Token: SeAuditPrivilege	1960	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1960	msiexec.exe
Token: SeChangeNotifyPrivilege	1960	msiexec.exe
Token: SeRemoteShutdownPrivilege	1960	msiexec.exe
Token: SeUndockPrivilege	1960	msiexec.exe
Token: SeSyncAgentPrivilege	1960	msiexec.exe
Token: SeEnableDelegationPrivilege	1960	msiexec.exe
Token: SeManageVolumePrivilege	1960	msiexec.exe
Token: SeImpersonatePrivilege	1960	msiexec.exe
Token: SeCreateGlobalPrivilege	1960	msiexec.exe
Token: SeCreateTokenPrivilege	1960	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1960	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1960	msiexec.exe
1960	msiexec.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1960	msiexec.exe
4368	msiexec.exe
5912	MsiExec.exe
4780	MsiExec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5752 wrote to memory of 1960	5752	ScreenConnect.ClientSetup.exe	89
PID 4368 wrote to memory of 5912	4368	msiexec.exe	91
PID 5912 wrote to memory of 2984	5912	MsiExec.exe	92
PID 4368 wrote to memory of 5540	4368	msiexec.exe	98
PID 4368 wrote to memory of 4780	4368	msiexec.exe	100

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
"C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5752
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\ec47a74386a145bd\ScreenConnect.ClientSetup.msi"
  2⤵
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  PID:1960

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:4368
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 9D451DB82EF33BCB669EDD1FA19D3C9F C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5912
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9AA0.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240753437 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2984
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:5540
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 5813B6BBFA067901DF80A71C0C0C9930
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4780

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:1344

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

e59fbad.rbs

Path C:\Config.Msi\e59fbad.rbs
Size 10KB
SHA256 5653e20ecc2d9a308d1cce709343470a48c0a8cbd2c187d98a8083d30da9cdca
MD5 b093dbc145a7ec4916449129d994bbc7
SHA1 e9eead76344bfe35f89edc209a977415e34856d1
SHA512 2f22a315581d313b5ead5889918550335f03d22c0487b1892eaaa237c397867a9d75d02055083f2503b1d60b97ad5cb455a32099a84da8d701a7da55cb03eae6
SSDEEP 96:b1n4mMjA9cGSjvfBmpCvpNs9UsRbiCsThqSUsRbiC6j+9fsThqnHl9500w6q3OrN:b14/j3VUpCx2WgbhIMgbhQe3w6Mwp5
TLSH
T16922554237A592D1FE620FB7CB432E2937F1EAA5A300234B15D8A539CE52385577C2DB
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI9AA0.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI9AA0.tmp
Size 1.0MB
SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
MD5 81f945dabc576ca389348a4e7147463f
SHA1 1876786194d49de92fff0b523f0c6280bdf94e22
SHA512 3f72d5a6f482757484b0c06cb5c1e6e018a4051fe43086f77f6ea8e61ee0d08afc0ec96eac5cb01e2d8dfdabe9115d7c277cd87b7ccf9bb02bd8da0e9556504a
SSDEEP 24576:QUUGG4DlIQMi4CJXxCHzCrvPfU8GWng+A2tuHt+pbW/aU0r1d:jG4DlItQ5xJrvPfU8VgJwW/zAd
TLSH
T19D35234832E58439E2A73A320CB6A6B125BC74773670D45FA78B4A1D5FB0AD1DE31327
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Microsoft.Deployment.WindowsInstaller.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI9AA0.tmp-\Microsoft.Deployment.WindowsInstaller.dll
Size 172KB
SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
MD5 5ef88919012e4a3d8a1e2955dc8c8d81
SHA1 c0cfb830b8f1d990e3836e0bcc786e7972c9ed62
SHA512 4544565b7d69761f9b4532cc85e7c654e591b2264eb8da28e60a058151030b53a99d1b2833f11bfc8acc837eecc44a7d0dbd8bc7af97fc0e0f4938c43f9c2684
SSDEEP 3072:FkfZS7FUguxN+77b1W5GR69UgoCaf8TpCnfKlRUjW01Ky4:x+c7b1W4R6joxfQE
TLSH
T14E045B2563FC473ECAEF87B4E2624251E7B2E2E97113DB0DDC8541AA2522780F792753
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.Core.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI9AA0.tmp-\ScreenConnect.Core.dll
Size 538KB
SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
MD5 1db8b9fa0bdcbfaab807f715c288c19a
SHA1 fde73710ce063bbf1e377c02a1a8615cf4da1c08
SHA512 fc132764026c682e8fac1a97171731d54880c8d95566c486c731c880e750a29875ac208fb4b4dc2897dfc49beb24f77af016d846c78be75df159d3542600eb73
SSDEEP 6144:SfoUrkyyvsbvpSLmwJUoqnoezGMZf1y99tg03Xdedu1h+xE5vce/6OdCatxq/trJ:SfpkywYszKoIzGafzece/6yx/Oek
TLSH
T144C47D9233B48B2FCABF5B7BE42454980770E901F209EB5B1AD6D4BC5F633854E412E6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.InstallerActions.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI9AA0.tmp-\ScreenConnect.InstallerActions.dll
Size 11KB
SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
MD5 454b489378d49d17021b3e85f86ae843
SHA1 8a208ddbcd5609b2a8d2dad34a6894396e806d51
SHA512 24ee8ed25df1d43169e9c762b5e1cbaa1e0150bb07387ac5ebeda6f19b83ecbe38342fe01259ca373bcfccb653ea6533395b88a4bce29aee7354815d5253538b
SSDEEP 192:b8/Qp6lCJuV3j/XtyVNamVNG1YZfCrMmbfHJ7kjvLHbuLd9NEFb5lZ:I/cBJaDXt2NaheUrMmb/FkjvLHbuZslZ
TLSH
T1A132D50077DC533AE8BE0F789EB762910A71FB64A011DF2E18CC91569C36744AEA07B7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.Windows.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI9AA0.tmp-\ScreenConnect.Windows.dll
Size 1.6MB
SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
MD5 94216eb90ca53fbb175f0ee6adbfb663
SHA1 48038f060a5042ff44a2d9a9be46368ecc8436fd
SHA512 c6c7e2a63eaccc5703acf4cb482a9e441fb6e670a9086d3ade558a597b1fd6c17f5e5b7027d835b80ebf2c071f9442bde466f313ddb8456fe0d3e4db6d53b041
SSDEEP 24576:VDhFj+Ifz3zvnXj/zXzvAAkGz8mvgtX79S+2bfh+RfmT01krTFiH4SqfKPTsUTHs:VDhJkGYYpT0+TFiH7efP
TLSH
T14B85BD41E2D364F5D46B047888BF571ABA743C040325CAFB97D4AE3A6D33BC09A36796
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.ClientSetup.msi

Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\ec47a74386a145bd\ScreenConnect.ClientSetup.msi
Size 12.9MB
SHA256 92e43039b5659971cc92753df05ea0d378f1d6992c180aefd8d37275c0835cea
MD5 f6b4e5c25327881becc78fadfb1d68f9
SHA1 b7ce4a51d60c2408741a664346c70e1a88087b1d
SHA512 9d33378077e12e9b938428977d80509ecb68d0e9c1f86ca8144ec85f2f62d3b61f111172c43b1530395cd1e76ba6db949543928caec2bfc39b15a954f8594d9f
SSDEEP 196608:NHxcp9ym3nltDUJVdHxcp9ym3+Hxcp9ym3LHxcp9ym3EHxcp9ym3pHxcp9ym3ZHf:/GplpmGpMGpVGpiGp7GprGpI
TLSH
T1CCD622116BF8D364E0B21AB59C7758A09F377E0D59E2812E1227750F2C71BA089A773F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI4A6.tmp

Path C:\Windows\Installer\MSI4A6.tmp
Size 202KB
SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
MD5 ba84dd4e0c1408828ccc1de09f585eda
SHA1 e8e10065d479f8f591b9885ea8487bc673301298
SHA512 7a38418f6ee8dbc66fab2cd5ad8e033e761912efc465daa484858d451da4b8576079fe90fd3b6640410edc8b3cac31c57719898134f246f4000d60a252d88290
SSDEEP 3072:X9LUHM7ptZ8UKOGw5vMWSuRy1YaDJkflQn3H+QDO/6Q+cxbr0qMG:XuH2aCGw1ST1wQLdqv
TLSH
T129147C326494803EE7F91A36D93E9A61AE7DF6241760C99EC3848C0E5D604D06BF7B27
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

metadata-2

Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
Size 26.1MB
SHA256 b912fb820ab6f8dcf0ed6df05034889d355ac20eae7adc397401215d7135ad96
MD5 59d901ece853cd2aa5480d6ab9db13ec
SHA1 e8af80456f5095ebf652d60a3ce931e1db510aac
SHA512 b5cb421a88583a89ea0ddb1a4d7b81b37b677ec3557b76268f75aecaaf72789f99ad33d7341d2daf2f48cc365b69f66255f9b55dff45c5eede3d6295b4afe754
SSDEEP 24576:8Fo3DMPydoO/vvTL/yAjDilQP7eJY7Eg0+1xNudb1WtqJESTsIRmD6pin+z:bHI
TLSH
T1D957B31436F92200E7B79E3DB8F06A234D397D5BAC15DE8D45511B8E0822F71E872F6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{f45aa2da-c88c-4384-808b-87e1ce45bbf8}_OnDiskSnapshotProp

Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{f45aa2da-c88c-4384-808b-87e1ce45bbf8}_OnDiskSnapshotProp
Size 6KB
SHA256 3363b9803e326f740accd9fe41bbce6fdfb13b509df72631434082f89f0645e2
MD5 6ffd1c85dd320a61686af93154e0ca2f
SHA1 f428c214b77e006dc730d92b9ec17035f71b3e2e
SHA512 10a476d8b4438a29de3103d241e843a79c8c5383e5b9ee85fabaacb3f8696a3f5bdac2444aa86328d123c20a1053fafae5ebe4ca3271699fc11ee4df2ef256e5
SSDEEP 96:FIcICbNvc6DD84LTHzbOHXOHBlBRQn8Sc9XE56tOSVQpu:TIAb++uVm
TLSH
T150D177185AF54311E2B3AB3228F14557A837B911EF33CB8E0198238E2621A10F975F6F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2984-32-0x0000000005DA0000-0x0000000005DCE000-memory.dmp

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memory/2984-40-0x0000000005EC0000-0x0000000005F4C000-memory.dmp

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memory/2984-44-0x0000000006100000-0x00000000062AC000-memory.dmp

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memory/2984-36-0x0000000003D40000-0x0000000003D4A000-memory.dmp

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memory/5752-8-0x0000000074CE0000-0x000000007549C000-memory.dmp

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memory/5752-13-0x0000000074CE0000-0x000000007549C000-memory.dmp

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memory/5752-10-0x0000000074CE0000-0x000000007549C000-memory.dmp

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memory/5752-6-0x0000000004FE0000-0x0000000005002000-memory.dmp

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memory/5752-7-0x00000000050F0000-0x000000000529C000-memory.dmp

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memory/5752-9-0x0000000005C10000-0x00000000061CA000-memory.dmp

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memory/5752-0-0x0000000074CF2000-0x0000000074CF3000-memory.dmp

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memory/5752-5-0x0000000074CE0000-0x000000007549C000-memory.dmp

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memory/5752-4-0x0000000005060000-0x00000000050EC000-memory.dmp

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memory/5752-3-0x0000000074CE0000-0x000000007549C000-memory.dmp

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memory/5752-2-0x0000000005360000-0x0000000005652000-memory.dmp

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memory/5752-1-0x00000000029A0000-0x00000000029A8000-memory.dmp

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