404ea0022b777c6f39863df08b3de450efabf36abd9cc92c5bf300e72651861a

Analysis

max time kernel
148s
max time network
140s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/07/2026, 09:37

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample260730-llpd5afb52
SHA256 404ea0022b777c6f39863df08b3de450efabf36abd9cc92c5bf300e72651861a
MD5 d2a6531b53d38fa469a87bc5957963f8
SHA1 abb3aed5f8a1f565f91f00d08f9f7319f41f2306
SHA512 bdbc634acdca07ee02e5e67583a662422df1f99eb45fce8a46ddacbdf069d40e8e0057f94a73784196c8aee35244393b976799bd3ad272311b0d0c91e6b1cfc4
SSDEEP 98304:ozIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:ohfefPtHxcp9ym3nltDUJV
TLSH
T19C46E111B3D695B6D1BF0638D87A52696734BC049316CBBF5394BD392E32BC08E32366
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/4772-2-0x0000000005D00000-0x0000000005FF2000-memory.dmp	revoked_cert_connectwise

Loads dropped DLL 11 IoCs

pid	Process
124	MsiExec.exe
4116	rundll32.exe
4116	rundll32.exe
4116	rundll32.exe
4116	rundll32.exe
4116	rundll32.exe
4116	rundll32.exe
4116	rundll32.exe
4116	rundll32.exe
4116	rundll32.exe
1592	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)	\??\Z:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\Client.Override.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\Client.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\Client.Override.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (8092cf85c22e0ed2)\ScreenConnect.WindowsClient.exe	msiexec.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\e59c7da.msi	msiexec.exe
File created	C:\Windows\Installer\SourceHash{F4825C40-53DE-0334-074A-DD51DC2FC9C4}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSICEA2.tmp	msiexec.exe
File created	C:\Windows\Installer\e59c7dc.msi	msiexec.exe
File created	C:\Windows\SystemTemp\~DFF46AF251BE6D79AE.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DF83C1B49D91F71AA0.TMP	msiexec.exe
File created	C:\Windows\Installer\e59c7da.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSICE62.tmp	msiexec.exe
File created	C:\Windows\Installer\{F4825C40-53DE-0334-074A-DD51DC2FC9C4}\DefaultIcon	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\{F4825C40-53DE-0334-074A-DD51DC2FC9C4}\DefaultIcon	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\SystemTemp\~DF24D7D150C184011A.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DF9B28FE74E71A6642.TMP	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	ScreenConnect.ClientSetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
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

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 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
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

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\CLASSES\LOCAL SETTINGS\MUICACHE\27\52C64B7E	msiexec.exe
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

Modifies registry class 32 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\sc-8092cf85c22e0ed2	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-8092cf85c22e0ed2\UseOriginalUrlEncoding = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-8092cf85c22e0ed2\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\B1C0CE5BA59C133E0829FC582CE2E02D	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\SourceList	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\SourceList\Media	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\04C5284FED35433070A4DD15CDF29C4C	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\04C5284FED35433070A4DD15CDF29C4C\Full	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\DeploymentFlags = "3"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\Assignment = "1"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\8092cf85c22e0ed2\\"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\Version = "419561476"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\ProductIcon = "C:\\Windows\\Installer\\{F4825C40-53DE-0334-074A-DD51DC2FC9C4}\\DefaultIcon"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-8092cf85c22e0ed2	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-8092cf85c22e0ed2\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (8092cf85c22e0ed2)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\Language = "1033"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\8092cf85c22e0ed2\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-8092cf85c22e0ed2\shell\open\command	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\ProductName = "ScreenConnect Client (8092cf85c22e0ed2)"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\SourceList\Net	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\SourceList\Media\1 = ";"	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\Clients = 3a0000000000	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-8092cf85c22e0ed2\URL Protocol	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\PackageCode = "04C5284FED35433070A4DD15CDF29C4C"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\AdvertiseFlags = "388"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\InstanceType = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\B1C0CE5BA59C133E0829FC582CE2E02D\04C5284FED35433070A4DD15CDF29C4C	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-8092cf85c22e0ed2\shell\open	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-8092cf85c22e0ed2\shell\open\command	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\04C5284FED35433070A4DD15CDF29C4C\AuthorizedLUAApp = "0"	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4592	msiexec.exe
4592	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4772	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	5912	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5912	msiexec.exe
Token: SeSecurityPrivilege	4592	msiexec.exe
Token: SeCreateTokenPrivilege	5912	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5912	msiexec.exe
Token: SeLockMemoryPrivilege	5912	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5912	msiexec.exe
Token: SeMachineAccountPrivilege	5912	msiexec.exe
Token: SeTcbPrivilege	5912	msiexec.exe
Token: SeSecurityPrivilege	5912	msiexec.exe
Token: SeTakeOwnershipPrivilege	5912	msiexec.exe
Token: SeLoadDriverPrivilege	5912	msiexec.exe
Token: SeSystemProfilePrivilege	5912	msiexec.exe
Token: SeSystemtimePrivilege	5912	msiexec.exe
Token: SeProfSingleProcessPrivilege	5912	msiexec.exe
Token: SeIncBasePriorityPrivilege	5912	msiexec.exe
Token: SeCreatePagefilePrivilege	5912	msiexec.exe
Token: SeCreatePermanentPrivilege	5912	msiexec.exe
Token: SeBackupPrivilege	5912	msiexec.exe
Token: SeRestorePrivilege	5912	msiexec.exe
Token: SeShutdownPrivilege	5912	msiexec.exe
Token: SeDebugPrivilege	5912	msiexec.exe
Token: SeAuditPrivilege	5912	msiexec.exe
Token: SeSystemEnvironmentPrivilege	5912	msiexec.exe
Token: SeChangeNotifyPrivilege	5912	msiexec.exe
Token: SeRemoteShutdownPrivilege	5912	msiexec.exe
Token: SeUndockPrivilege	5912	msiexec.exe
Token: SeSyncAgentPrivilege	5912	msiexec.exe
Token: SeEnableDelegationPrivilege	5912	msiexec.exe
Token: SeManageVolumePrivilege	5912	msiexec.exe
Token: SeImpersonatePrivilege	5912	msiexec.exe
Token: SeCreateGlobalPrivilege	5912	msiexec.exe
Token: SeCreateTokenPrivilege	5912	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5912	msiexec.exe
Token: SeLockMemoryPrivilege	5912	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5912	msiexec.exe
Token: SeMachineAccountPrivilege	5912	msiexec.exe
Token: SeTcbPrivilege	5912	msiexec.exe
Token: SeSecurityPrivilege	5912	msiexec.exe
Token: SeTakeOwnershipPrivilege	5912	msiexec.exe
Token: SeLoadDriverPrivilege	5912	msiexec.exe
Token: SeSystemProfilePrivilege	5912	msiexec.exe
Token: SeSystemtimePrivilege	5912	msiexec.exe
Token: SeProfSingleProcessPrivilege	5912	msiexec.exe
Token: SeIncBasePriorityPrivilege	5912	msiexec.exe
Token: SeCreatePagefilePrivilege	5912	msiexec.exe
Token: SeCreatePermanentPrivilege	5912	msiexec.exe
Token: SeBackupPrivilege	5912	msiexec.exe
Token: SeRestorePrivilege	5912	msiexec.exe
Token: SeShutdownPrivilege	5912	msiexec.exe
Token: SeDebugPrivilege	5912	msiexec.exe
Token: SeAuditPrivilege	5912	msiexec.exe
Token: SeSystemEnvironmentPrivilege	5912	msiexec.exe
Token: SeChangeNotifyPrivilege	5912	msiexec.exe
Token: SeRemoteShutdownPrivilege	5912	msiexec.exe
Token: SeUndockPrivilege	5912	msiexec.exe
Token: SeSyncAgentPrivilege	5912	msiexec.exe
Token: SeEnableDelegationPrivilege	5912	msiexec.exe
Token: SeManageVolumePrivilege	5912	msiexec.exe
Token: SeImpersonatePrivilege	5912	msiexec.exe
Token: SeCreateGlobalPrivilege	5912	msiexec.exe
Token: SeCreateTokenPrivilege	5912	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5912	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5912	msiexec.exe
5912	msiexec.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5912	msiexec.exe
4592	msiexec.exe
124	MsiExec.exe
1592	MsiExec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 5912	4772	ScreenConnect.ClientSetup.exe	89
PID 4592 wrote to memory of 124	4592	msiexec.exe	91
PID 124 wrote to memory of 4116	124	MsiExec.exe	92
PID 4592 wrote to memory of 2000	4592	msiexec.exe	97
PID 4592 wrote to memory of 1592	4592	msiexec.exe	99

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:4772
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\8092cf85c22e0ed2\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:5912

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:4592
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding E4F80B716D080F4799B4C65B7AF3F9B2 C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:124
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI813C.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240746953 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:4116
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:2000
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 8740DE64DF690AED611DE7C10BAF515C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1592

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:4300

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

e59c7db.rbs

Path C:\Config.Msi\e59c7db.rbs
Size 10KB
SHA256 506118219f46cb6f468abedd97232380b0e967533c7192778d4b5aeb596cee40
MD5 38457036dca0ad487e0e4c90580f6c97
SHA1 382e812fffdd5786de85a86395a2ba5ae737e81f
SHA512 7bf16ea90a1f5697f679de20f457d8190f46b7fe399a3a6c8cc083b37160c294de28da94bf3766605db320efe7f5dde98931950ae973cc1cccef182844880c75
SSDEEP 192:+KsnD0pwCjpp5W6hIP6h8k2ujfJdmXAfjQCZtpVmietcj8Ux:+KsnDeXppY6a6qk2ef7mXAfjQCPmiety
TLSH
T151220E067E009AE2FE524F36CB4B0B103B739BD45745224FA1CE91385DA27C96BBD1D6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI813C.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI813C.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\MSI813C.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\MSI813C.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\MSI813C.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\MSI813C.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\8092cf85c22e0ed2\ScreenConnect.ClientSetup.msi
Size 12.9MB
SHA256 d613e1e5bb7e4ab43fd8e1d4dc07501d29d392ee8d059b1234ff5b04bbf52a5e
MD5 012660518e2f49aa84340a410f8a9fc3
SHA1 0be7caa8a06e2e6ea2d32f854f94bcd7741dda44
SHA512 41eaf93e416724ab1856cecd848a01285c554acc123d6b03075bc2169888161bd60657b530c3e4825b36e1e7a35e2153545f175c9dfa33f7d6b116fc7b9b5dcf
SSDEEP 196608:SHxcp9ym3nltDUJVrHxcp9ym3VHxcp9ym3eHxcp9ym38Hxcp9ym3mHxcp9ym3jH6:gGplpEGpHGpsGpaGp0GpNGpp
TLSH
T1B4D623116BF89278F0F26E39E876A0B1A5377C515E22D12E2324791E2C75EC0C9A3737
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSICEA2.tmp

Path C:\Windows\Installer\MSICEA2.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 d4f92b566050cf74fcec812a87636dd08173687f72b23851f250bec1ce33c59b
MD5 754e96a10969eeed58a263d6184dfdbe
SHA1 0d8c51496a1c2a11e884c4f39e0e6019e11212b7
SHA512 8e62afb9c1d184b5a1de0a274a7d43a073bc73eff35cc292e3666f8272492eacb72079a48e17615d2b7e667aabd93b0d568daf1a8c3352ef3f1ce404f56000a6
SSDEEP 24576:qFo3DMPPdoO/vvTL/yAsMilQPrOWX7rf0R6e9BCE65iqpLNMMoR2s12Noea:kHM
TLSH
T10B57B51436F92100E7F79E3CA8F06A234D397D5BAC19DE8D45511B8E0922F71E872F6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{def4e90c-2901-451a-91af-273c99a01756}_OnDiskSnapshotProp

Path \??\Volume{c61fbfff-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{def4e90c-2901-451a-91af-273c99a01756}_OnDiskSnapshotProp
Size 6KB
SHA256 fd48d78c386773ee05bc2f2d651a31b4e8935981eb6a197cd34a4a8b802a652f
MD5 c34c7808546337028334818bd20f6e99
SHA1 54b605efa456855ad3c5eedf77eb155e9d0ba9f8
SHA512 84d8292b9b5bbea70c762936a63355fa18b18b9b923dd66707caf6a4fd7e5420c4156d67173060637fbc56ae328dfe6c42dc70f6c4e2a3d42771fdae0e74a126
SSDEEP 96:FupW5mvlDvc6DD84LTHzbOHXOHBlBRQn8Sc9XE56tOSVQpu:QMml/b++uVm
TLSH
T157D1780C1AE54311E2B3AB7229F14557A877B911EF33CB8E0198238E6671A14F935F6B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4116-40-0x0000000005BF0000-0x0000000005C7C000-memory.dmp

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memory/4116-32-0x0000000003AE0000-0x0000000003B0E000-memory.dmp

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memory/4116-44-0x0000000005E30000-0x0000000005FDC000-memory.dmp

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memory/4116-36-0x0000000003AC0000-0x0000000003ACA000-memory.dmp

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memory/4772-7-0x00000000065B0000-0x0000000006B6A000-memory.dmp

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memory/4772-8-0x0000000074240000-0x00000000749FC000-memory.dmp

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memory/4772-9-0x0000000074240000-0x00000000749FC000-memory.dmp

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memory/4772-12-0x0000000074240000-0x00000000749FC000-memory.dmp

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memory/4772-0-0x0000000074252000-0x0000000074253000-memory.dmp

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memory/4772-6-0x0000000005A90000-0x0000000005C3C000-memory.dmp

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memory/4772-5-0x00000000034D0000-0x00000000034F2000-memory.dmp

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memory/4772-10-0x0000000074240000-0x00000000749FC000-memory.dmp

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memory/4772-3-0x0000000074240000-0x00000000749FC000-memory.dmp

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memory/4772-4-0x0000000005A00000-0x0000000005A8C000-memory.dmp

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memory/4772-2-0x0000000005D00000-0x0000000005FF2000-memory.dmp

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memory/4772-1-0x0000000003310000-0x0000000003318000-memory.dmp

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