547f6ecf5306f31f8fab2cdecb19b61d9539ca0500fc28a89755e2768eb6f91c

Analysis

max time kernel
149s
max time network
154s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/08/2026, 18:14

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample260817-wvb59swzfx
SHA256 547f6ecf5306f31f8fab2cdecb19b61d9539ca0500fc28a89755e2768eb6f91c
MD5 1e33111c87f6ddb0eb40f7ec79ce7740
SHA1 b3a2456f64a654c1ca80bfe324a1ba33ed2b92f2
SHA512 829005105b9968ad66528dd9947ad1092db96098200c71edede287fa640f9c9ea534f37cf440bfa3b4e024883c4607376f1f8beaa935bc5aba9dad6c83846637
SSDEEP 98304:azIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:ahfefPtHxcp9ym3nltDUJV
TLSH
T1B346E101B3D695B6D1BF1638D87A52696734BC049316CBBF5394BD392E32BC04E323A6
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/5732-2-0x0000000005590000-0x0000000005882000-memory.dmp	revoked_cert_connectwise

Loads dropped DLL 11 IoCs

pid	Process
3388	MsiExec.exe
2708	rundll32.exe
2708	rundll32.exe
2708	rundll32.exe
2708	rundll32.exe
2708	rundll32.exe
2708	rundll32.exe
2708	rundll32.exe
2708	rundll32.exe
2708	rundll32.exe
5548	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)	\??\W:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe

Drops file in Program Files directory 15 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\Client.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (e4a21ee896ec41e7)\Client.en-US.resources	msiexec.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\e59c3b4.msi	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File created	C:\Windows\SystemTemp\~DF6B4FB7610274880D.TMP	msiexec.exe
File created	C:\Windows\Installer\SourceHash{2720F3C5-7804-F475-FFB9-BD21EEEBA148}	msiexec.exe
File created	C:\Windows\Installer\e59c3b6.msi	msiexec.exe
File created	C:\Windows\Installer\{2720F3C5-7804-F475-FFB9-BD21EEEBA148}\DefaultIcon	msiexec.exe
File opened for modification	C:\Windows\Installer\{2720F3C5-7804-F475-FFB9-BD21EEEBA148}\DefaultIcon	msiexec.exe
File created	C:\Windows\Installer\e59c3b4.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\SystemTemp\~DFF72AC4C482EEDF5B.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DFD95D39CBA08DDF79.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DFB1DCB95C0FA26CEA.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\MSICAC8.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSICAE8.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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\AuthorizedLUAApp = "0"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\DeploymentFlags = "3"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-e4a21ee896ec41e7\UseOriginalUrlEncoding = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-e4a21ee896ec41e7\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\5C3F02724087574FFF9BDB12EEBE1A84	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\InstanceType = "0"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\AdvertiseFlags = "388"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\SourceList\Media\1 = ";"	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\Clients = 3a0000000000	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-e4a21ee896ec41e7\URL Protocol	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\Version = "419561476"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\ProductIcon = "C:\\Windows\\Installer\\{2720F3C5-7804-F475-FFB9-BD21EEEBA148}\\DefaultIcon"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\e4a21ee896ec41e7\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\SourceList\Media	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\e4a21ee896ec41e7\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-e4a21ee896ec41e7	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\SourceList\Net	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\SourceList	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-e4a21ee896ec41e7\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (e4a21ee896ec41e7)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\5C3F02724087574FFF9BDB12EEBE1A84\Full	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\ProductName = "ScreenConnect Client (e4a21ee896ec41e7)"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\Language = "1033"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-e4a21ee896ec41e7	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-e4a21ee896ec41e7\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-e4a21ee896ec41e7\shell\open	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\704829E9A3061F9C4E2AE18E69CE147E	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\704829E9A3061F9C4E2AE18E69CE147E\5C3F02724087574FFF9BDB12EEBE1A84	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\PackageCode = "5C3F02724087574FFF9BDB12EEBE1A84"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\Assignment = "1"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\5C3F02724087574FFF9BDB12EEBE1A84\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-e4a21ee896ec41e7\shell\open\command	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4484	msiexec.exe
4484	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5732	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	5884	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5884	msiexec.exe
Token: SeSecurityPrivilege	4484	msiexec.exe
Token: SeCreateTokenPrivilege	5884	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5884	msiexec.exe
Token: SeLockMemoryPrivilege	5884	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5884	msiexec.exe
Token: SeMachineAccountPrivilege	5884	msiexec.exe
Token: SeTcbPrivilege	5884	msiexec.exe
Token: SeSecurityPrivilege	5884	msiexec.exe
Token: SeTakeOwnershipPrivilege	5884	msiexec.exe
Token: SeLoadDriverPrivilege	5884	msiexec.exe
Token: SeSystemProfilePrivilege	5884	msiexec.exe
Token: SeSystemtimePrivilege	5884	msiexec.exe
Token: SeProfSingleProcessPrivilege	5884	msiexec.exe
Token: SeIncBasePriorityPrivilege	5884	msiexec.exe
Token: SeCreatePagefilePrivilege	5884	msiexec.exe
Token: SeCreatePermanentPrivilege	5884	msiexec.exe
Token: SeBackupPrivilege	5884	msiexec.exe
Token: SeRestorePrivilege	5884	msiexec.exe
Token: SeShutdownPrivilege	5884	msiexec.exe
Token: SeDebugPrivilege	5884	msiexec.exe
Token: SeAuditPrivilege	5884	msiexec.exe
Token: SeSystemEnvironmentPrivilege	5884	msiexec.exe
Token: SeChangeNotifyPrivilege	5884	msiexec.exe
Token: SeRemoteShutdownPrivilege	5884	msiexec.exe
Token: SeUndockPrivilege	5884	msiexec.exe
Token: SeSyncAgentPrivilege	5884	msiexec.exe
Token: SeEnableDelegationPrivilege	5884	msiexec.exe
Token: SeManageVolumePrivilege	5884	msiexec.exe
Token: SeImpersonatePrivilege	5884	msiexec.exe
Token: SeCreateGlobalPrivilege	5884	msiexec.exe
Token: SeCreateTokenPrivilege	5884	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5884	msiexec.exe
Token: SeLockMemoryPrivilege	5884	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5884	msiexec.exe
Token: SeMachineAccountPrivilege	5884	msiexec.exe
Token: SeTcbPrivilege	5884	msiexec.exe
Token: SeSecurityPrivilege	5884	msiexec.exe
Token: SeTakeOwnershipPrivilege	5884	msiexec.exe
Token: SeLoadDriverPrivilege	5884	msiexec.exe
Token: SeSystemProfilePrivilege	5884	msiexec.exe
Token: SeSystemtimePrivilege	5884	msiexec.exe
Token: SeProfSingleProcessPrivilege	5884	msiexec.exe
Token: SeIncBasePriorityPrivilege	5884	msiexec.exe
Token: SeCreatePagefilePrivilege	5884	msiexec.exe
Token: SeCreatePermanentPrivilege	5884	msiexec.exe
Token: SeBackupPrivilege	5884	msiexec.exe
Token: SeRestorePrivilege	5884	msiexec.exe
Token: SeShutdownPrivilege	5884	msiexec.exe
Token: SeDebugPrivilege	5884	msiexec.exe
Token: SeAuditPrivilege	5884	msiexec.exe
Token: SeSystemEnvironmentPrivilege	5884	msiexec.exe
Token: SeChangeNotifyPrivilege	5884	msiexec.exe
Token: SeRemoteShutdownPrivilege	5884	msiexec.exe
Token: SeUndockPrivilege	5884	msiexec.exe
Token: SeSyncAgentPrivilege	5884	msiexec.exe
Token: SeEnableDelegationPrivilege	5884	msiexec.exe
Token: SeManageVolumePrivilege	5884	msiexec.exe
Token: SeImpersonatePrivilege	5884	msiexec.exe
Token: SeCreateGlobalPrivilege	5884	msiexec.exe
Token: SeCreateTokenPrivilege	5884	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5884	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5884	msiexec.exe
5884	msiexec.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5884	msiexec.exe
4484	msiexec.exe
3388	MsiExec.exe
5548	MsiExec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5732 wrote to memory of 5884	5732	ScreenConnect.ClientSetup.exe	89
PID 4484 wrote to memory of 3388	4484	msiexec.exe	91
PID 3388 wrote to memory of 2708	3388	MsiExec.exe	92
PID 4484 wrote to memory of 2412	4484	msiexec.exe	97
PID 4484 wrote to memory of 5548	4484	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:5732
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\e4a21ee896ec41e7\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:5884

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:4484
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 77EF33A68E19A84E0BDB3E095F2383AA C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3388
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI69DC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240741093 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2708
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:2412
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 72E4235186A02518293F9283564CFD3D
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:5548

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:1472

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

e59c3b5.rbs

Path C:\Config.Msi\e59c3b5.rbs
Size 10KB
SHA256 9f30d248f66265a4cd8f690d7dfd83c5f82b659845370ef17f7c5b4aeae99870
MD5 e5f42b0190e0bf89921066a67c3f4821
SHA1 5170d6e27aa51cd0d4d6aed10848506a5745c1ec
SHA512 db4e90619cb3ca091e0f13020f32181c30683e12003336e0ceb0720af93ff3d12f983ccfde18e3ed45dca72a6aee9184bddf7ded0bf98f596a573b5cff6d2d76
SSDEEP 192:JW4rsZC39+WAhIgAhVZ7SXduJGrk5CkzaIspARjzfx+VA6:JW4rsG9hAJAPZ70eGrk5CkzaQRjzfx+v
TLSH
T184224342B60095F1FABA2B75CB070A103772EAF69340238F99CD423A5D937856F7D1E6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI69DC.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI69DC.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\MSI69DC.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\MSI69DC.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\MSI69DC.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\MSI69DC.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\e4a21ee896ec41e7\ScreenConnect.ClientSetup.msi
Size 9.5MB
SHA256 5853967c92e548a1a603c6f25fde79684aac9811b5aac7a1382b06e260cf9173
MD5 b15f6306171040af255046d8e84b368c
SHA1 7c35d8962dd87e05c911c9dd44df5a76f4acc7d2
SHA512 a21128938143e51684ba7bc7f0d2fb40dfbe79e6dfdc7908b789389bbdb27100d06afe29bcc1c5d9f0096efcf409557240d5b1069fe9624a40365031056d6ce7
SSDEEP 196608:bHxcp9ym3nltDUJVyHxcp9ym3YHxcp9ym39Hxcp9ym3XHxcp9ym3:lGplpBGpmGpvGpBGp
TLSH
T1DDA623116BF8D278F1F12A39D876A0B1A53A7D519E23C12E2324791E2C75EC0CA63777
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSICAE8.tmp

Path C:\Windows\Installer\MSICAE8.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 0e514e4d01923bcaa9f7b88a5df45eaad7fe8661f1e2bcb20acd4d66cad1b1b0
MD5 ca6521c0b969c5a562fb0db4d1a0858a
SHA1 41ce21c8eb93afd5534ab537ce5b9e54beb887c9
SHA512 e0d1802f7ba5f345a235ce890986f40765f9938fc3ba88b592e08c1d842c9de4ba02f34f3efb19199605f3d5a89cd49429990bbd4786a8002f36b5aabf792a00
SSDEEP 24576:BFo3DMPndoO/vvTL/yAsMilQPrOWX7rf0R6e9BCE65iqpLNMMoR2s12NoeG:TH4
TLSH
T1AE57B51436F92100E7F79E3CA8F06A234D397D5BAC19DE8D45511B8E0922F71E872F6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{48abcf02-0b39-4f79-8bbb-19a2ac9f1f11}_OnDiskSnapshotProp

Path \??\Volume{c61fbfff-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{48abcf02-0b39-4f79-8bbb-19a2ac9f1f11}_OnDiskSnapshotProp
Size 6KB
SHA256 75d25c6729465eba19dc4016f7cd08404e540cc4acc2e22903d29b6152ead9ee
MD5 a4d53e3f8e57f8a49b5c8f6139ed4daa
SHA1 34a7717927ff114e793c7d934820a1e1547cf12e
SHA512 05ea95d9f84096f9925e3e81e4dba21a9b156c46e8f79b66ab9993d8d07fb74baf052c2692ec97fd86dfa1cadb2595918e3e151c0e9d0021d8eeabb3a85b8311
SSDEEP 96:FH6W5mflDvc6DD84LTHzbOHXOHBlBRQn8Sc9XE56tOSVQpu:dtml/b++uVm
TLSH
T1C5D188080AE54311E2F3AB7129F18557A837B911EF33CB8E0298238E6671910F935F6B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2708-44-0x0000000005CE0000-0x0000000005E8C000-memory.dmp

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memory/2708-36-0x00000000059C0000-0x00000000059CA000-memory.dmp

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memory/2708-40-0x0000000005AA0000-0x0000000005B2C000-memory.dmp

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memory/2708-32-0x00000000059D0000-0x00000000059FE000-memory.dmp

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memory/4484-86-0x0000020902400000-0x0000020902DA4000-memory.dmp

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memory/5732-7-0x0000000074B70000-0x000000007532C000-memory.dmp

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memory/5732-13-0x0000000074B70000-0x000000007532C000-memory.dmp

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memory/5732-10-0x0000000074B70000-0x000000007532C000-memory.dmp

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memory/5732-9-0x0000000074B70000-0x000000007532C000-memory.dmp

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memory/5732-8-0x0000000005E40000-0x00000000063FA000-memory.dmp

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memory/5732-5-0x0000000005320000-0x0000000005342000-memory.dmp

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memory/5732-0-0x0000000074B82000-0x0000000074B83000-memory.dmp

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memory/5732-6-0x0000000005350000-0x00000000054FC000-memory.dmp

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memory/5732-4-0x0000000074B70000-0x000000007532C000-memory.dmp

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memory/5732-3-0x0000000005290000-0x000000000531C000-memory.dmp

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memory/5732-2-0x0000000005590000-0x0000000005882000-memory.dmp

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memory/5732-1-0x0000000002D90000-0x0000000002D98000-memory.dmp

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