d30c9d87c66d715810f77ca6db1e85b394b048a57cdd11d116a47c4536b3be18

Analysis

max time kernel
149s
max time network
114s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
16/08/2026, 12:20

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample260816-ph3dcsxwfv
SHA256 d30c9d87c66d715810f77ca6db1e85b394b048a57cdd11d116a47c4536b3be18
MD5 b98589017bd2e0ef83b4fe7dc963a784
SHA1 d215290cd61bbe0feadb98a5c23168591f56512b
SHA512 74fc0212854b0535e649df26b860d6ee1afca19af32f2c959be489a0a344a036cfd5429592b4c98b952a42357e10c2e359ba208bf9ed0e7a5cb4f72fa9d3e3f6
SSDEEP 98304:Izs6efPhFFNUhJFF3s+BoiGg1Gc977zbt:gfefPCFF3bBR1H9773
TLSH
T16A46E002B3D695B6D4BF063CD87A42A96674BC044712C7BF57D4BD692D32BC08E323A6
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/4292-2-0x0000000006280000-0x0000000006570000-memory.dmp	revoked_cert_connectwise

Loads dropped DLL 11 IoCs

pid	Process
4940	MsiExec.exe
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe
1260	rundll32.exe
3456	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)	\??\N:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Q:	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 (1059849e32002f21)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\Client.Override.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\Client.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (1059849e32002f21)\Client.Override.en-US.resources	msiexec.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File created	C:\Windows\Installer\e599b7b.msi	msiexec.exe
File created	C:\Windows\SystemTemp\~DF8727C4CD45DD5F2C.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\{A1AFF559-B6D5-70F4-3CAB-C9CA87DAA82A}\DefaultIcon	msiexec.exe
File created	C:\Windows\Installer\SourceHash{A1AFF559-B6D5-70F4-3CAB-C9CA87DAA82A}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA195.tmp	msiexec.exe
File created	C:\Windows\Installer\{A1AFF559-B6D5-70F4-3CAB-C9CA87DAA82A}\DefaultIcon	msiexec.exe
File opened for modification	C:\Windows\Installer\e599b7b.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\SystemTemp\~DFECE564E8E0F790AF.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DF33F72265E6D8514E.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DF851FE0077577E8FC.TMP	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA1C5.tmp	msiexec.exe
File created	C:\Windows\Installer\e599b7d.msi	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-1059849e32002f21	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-1059849e32002f21\shell\open\command	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\Clients = 3a0000000000	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-1059849e32002f21\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\Language = "1033"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\SourceList\Media	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\24.4.4.9118\\1059849e32002f21\\"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\Version = "402915332"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\ProductIcon = "C:\\Windows\\Installer\\{A1AFF559-B6D5-70F4-3CAB-C9CA87DAA82A}\\DefaultIcon"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\24.4.4.9118\\1059849e32002f21\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\SourceList	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-1059849e32002f21\UseOriginalUrlEncoding = "1"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-1059849e32002f21\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (1059849e32002f21)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\955FFA1A5D6B4F07C3BA9CAC78AD8AA2	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\PackageCode = "955FFA1A5D6B4F07C3BA9CAC78AD8AA2"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\InstanceType = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\F566CCF508BB3384019548E92300F212\955FFA1A5D6B4F07C3BA9CAC78AD8AA2	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\SourceList\Media\1 = ";"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\SourceList\Net	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-1059849e32002f21\URL Protocol	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-1059849e32002f21\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-1059849e32002f21	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-1059849e32002f21\shell\open	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\AdvertiseFlags = "388"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\Full	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\Assignment = "1"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\AuthorizedLUAApp = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\ProductName = "ScreenConnect Client (1059849e32002f21)"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\DeploymentFlags = "3"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\F566CCF508BB3384019548E92300F212	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\955FFA1A5D6B4F07C3BA9CAC78AD8AA2\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3860	msiexec.exe
3860	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4292	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	2104	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2104	msiexec.exe
Token: SeSecurityPrivilege	3860	msiexec.exe
Token: SeCreateTokenPrivilege	2104	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2104	msiexec.exe
Token: SeLockMemoryPrivilege	2104	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2104	msiexec.exe
Token: SeMachineAccountPrivilege	2104	msiexec.exe
Token: SeTcbPrivilege	2104	msiexec.exe
Token: SeSecurityPrivilege	2104	msiexec.exe
Token: SeTakeOwnershipPrivilege	2104	msiexec.exe
Token: SeLoadDriverPrivilege	2104	msiexec.exe
Token: SeSystemProfilePrivilege	2104	msiexec.exe
Token: SeSystemtimePrivilege	2104	msiexec.exe
Token: SeProfSingleProcessPrivilege	2104	msiexec.exe
Token: SeIncBasePriorityPrivilege	2104	msiexec.exe
Token: SeCreatePagefilePrivilege	2104	msiexec.exe
Token: SeCreatePermanentPrivilege	2104	msiexec.exe
Token: SeBackupPrivilege	2104	msiexec.exe
Token: SeRestorePrivilege	2104	msiexec.exe
Token: SeShutdownPrivilege	2104	msiexec.exe
Token: SeDebugPrivilege	2104	msiexec.exe
Token: SeAuditPrivilege	2104	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2104	msiexec.exe
Token: SeChangeNotifyPrivilege	2104	msiexec.exe
Token: SeRemoteShutdownPrivilege	2104	msiexec.exe
Token: SeUndockPrivilege	2104	msiexec.exe
Token: SeSyncAgentPrivilege	2104	msiexec.exe
Token: SeEnableDelegationPrivilege	2104	msiexec.exe
Token: SeManageVolumePrivilege	2104	msiexec.exe
Token: SeImpersonatePrivilege	2104	msiexec.exe
Token: SeCreateGlobalPrivilege	2104	msiexec.exe
Token: SeCreateTokenPrivilege	2104	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2104	msiexec.exe
Token: SeLockMemoryPrivilege	2104	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2104	msiexec.exe
Token: SeMachineAccountPrivilege	2104	msiexec.exe
Token: SeTcbPrivilege	2104	msiexec.exe
Token: SeSecurityPrivilege	2104	msiexec.exe
Token: SeTakeOwnershipPrivilege	2104	msiexec.exe
Token: SeLoadDriverPrivilege	2104	msiexec.exe
Token: SeSystemProfilePrivilege	2104	msiexec.exe
Token: SeSystemtimePrivilege	2104	msiexec.exe
Token: SeProfSingleProcessPrivilege	2104	msiexec.exe
Token: SeIncBasePriorityPrivilege	2104	msiexec.exe
Token: SeCreatePagefilePrivilege	2104	msiexec.exe
Token: SeCreatePermanentPrivilege	2104	msiexec.exe
Token: SeBackupPrivilege	2104	msiexec.exe
Token: SeRestorePrivilege	2104	msiexec.exe
Token: SeShutdownPrivilege	2104	msiexec.exe
Token: SeDebugPrivilege	2104	msiexec.exe
Token: SeAuditPrivilege	2104	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2104	msiexec.exe
Token: SeChangeNotifyPrivilege	2104	msiexec.exe
Token: SeRemoteShutdownPrivilege	2104	msiexec.exe
Token: SeUndockPrivilege	2104	msiexec.exe
Token: SeSyncAgentPrivilege	2104	msiexec.exe
Token: SeEnableDelegationPrivilege	2104	msiexec.exe
Token: SeManageVolumePrivilege	2104	msiexec.exe
Token: SeImpersonatePrivilege	2104	msiexec.exe
Token: SeCreateGlobalPrivilege	2104	msiexec.exe
Token: SeCreateTokenPrivilege	2104	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2104	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2104	msiexec.exe
2104	msiexec.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2104	msiexec.exe
3860	msiexec.exe
4940	MsiExec.exe
3456	MsiExec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4292 wrote to memory of 2104	4292	ScreenConnect.ClientSetup.exe	89
PID 3860 wrote to memory of 4940	3860	msiexec.exe	91
PID 4940 wrote to memory of 1260	4940	MsiExec.exe	92
PID 3860 wrote to memory of 2960	3860	msiexec.exe	97
PID 3860 wrote to memory of 3456	3860	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:4292
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\24.4.4.9118\1059849e32002f21\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:2104

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:3860
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding C56350FA4D431F3C1B52C7344A6D7058 C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4940
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI49A2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732906 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1260
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:2960
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 13E9656350F1AE2AB4632F7DD18AC5C1
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3456

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:2040

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

e599b7c.rbs

Path C:\Config.Msi\e599b7c.rbs
Size 10KB
SHA256 7714fb4db7441dc84ed749167a47e94676cc12d0d00380558a766ce9de49384b
MD5 0495390f367d1ab0fab1cf192779a7c7
SHA1 1fd41fb7878746c2836fa9487c49dc0fa1d00ae7
SHA512 ba1ff71c65f7dbb366b2a526104bf567da74dd65b1aa5020e426573df54b287be285b9eea22d413944d64c22a124126ae084680f09f69470eb8f437bb0efe811
SSDEEP 192:PLnmFQyLwOeOzBQBCwI++YRIPz++YRSP6u00Yjjpj:PLnmFQyLwOeOzyE++Ycz++YKC06F
TLSH
T1C7220C22760495F1F9930F71C7571B043BB2EDE82610260F51CE8A3E4F62785ABBD6D6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI49A2.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI49A2.tmp
Size 1.0MB
SHA256 db51e4b70f27d0bf28789ea3345bf693035916461d22661c26f149c5bc8891ed
MD5 4abad4fd1a22bc922b457c28d1e40f1a
SHA1 fc5a486b121175b547f78d9b8fc82fd893fcf6ed
SHA512 21d52ccf5b5041319a007f72c5cd5830f2a99e7b0ab2b946a87a25adebb78d6fbe1ff95a01f26e530a0d30d838560d8acf716e0c43aeb5ad69334a897456a5a1
SSDEEP 24576:QUUGG2P+Yn1UfV9rBcWE9gvlPvaZb9xn95RivMm54Nby:jG2mY1iHJoTn977zby
TLSH
T15A35233072E0C131F26667350879327012F93A7295B4978E7F850DAEAEF1B89DA74727
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Microsoft.Deployment.WindowsInstaller.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI49A2.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\MSI49A2.tmp-\ScreenConnect.Core.dll
Size 537KB
SHA256 8377a87625c04ca5d511ceec91b8c029f9901079abf62cf29cf1134c99fa2662
MD5 665a8c1e8ba78f0953bc87f0521905cc
SHA1 fe15e77e0aef283ced5afe77b8aecadc27fc86cf
SHA512 0f9257a9c51eb92435ed4d45e2eaaa0e2f12983f6912f6542cc215709ae853364d881f184687610f88332eca0f47e85fa339ade6b2d7f0f65adb5e3236a7b774
SSDEEP 6144:JL2DLhOnlTQatfpw7TkJ9/KeZBFR/Zw7VTcWt5jv8jyEzR39GBCquqwMSRq/sreR:JLMhOeM52aBFcTbkdpRL6Ei
TLSH
T10EC46D037398EB3BEDAF573EA43151C94670EC01295AE76F1ED4D8E61E823864F442E6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.InstallerActions.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI49A2.tmp-\ScreenConnect.InstallerActions.dll
Size 11KB
SHA256 d09447d4816e248c16891361d87019156cc7664b213357a8e6c422484b8d6b4e
MD5 7572b9ae2ecf5946645863a828678b5a
SHA1 438a5be706775626768d24ba5f25c454920ad2f2
SHA512 b1cee9458be3579a02b6f7e8d0b76f67a4b2d1f170db2e09af75d9901723e80e68650fe8fbbe43c8f062df7d50889e224b7cd9767027a0d7a5121a4534f2afa4
SSDEEP 192:A8/Qp6lCJuV3jyXtyVNamVNG1YZfCrMmbfHJ7kjvLXbuLd9NEFb4/:d/cBJaGXt2NaheUrMmb/FkjvLXbuZr/
TLSH
T15332D60037DC533AE8BE1F78AAB762910A71FA64A011DF2E18C891569D367449EA07B7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.Windows.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI49A2.tmp-\ScreenConnect.Windows.dll
Size 1.6MB
SHA256 2659f660691d65628d2fcc3bfc334686cd053f162cdb73bf7a0da0ac6449db92
MD5 7099c67fe850d902106c03d07bfb773b
SHA1 f597d519a59a5fd809e8a1e097fdd6e0077f72de
SHA512 17849cb444d3ac2cd4658d4eca9dc89652beae6c6a2bd765749d8ba53e37248fd92a00af2b45371c21182135fffa6dd96dc9570bfd41459f23e084c3e122d162
SSDEEP 24576:aOgPFj+Ifz3zvnXj/zXzvAAkGz8mvgtX79S+2bfh+RfmT01krTFiH4SqfKPTsUTM:PgPJkGYYpT0+TFiH7efP
TLSH
T14985AD01E2D365F9D46B047888BF572AAA743C040325CAFB97D4BE366D33BC09A36756
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.ClientSetup.msi

Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\24.4.4.9118\1059849e32002f21\ScreenConnect.ClientSetup.msi
Size 12.8MB
SHA256 a818fa466efb152d0a19ffd1c0174f910e039d9272376c23aaf460bf14e3252a
MD5 5b8e2ee9f318e657d042aba0fe116af8
SHA1 2d97a77dde50ca3e599c870a79ed4e3382cf5588
SHA512 6eba0271da142a0b6c908ec65d9126f0878994e589b37013ce982e1d28626b6728304bffeeea0a4b8113ffa05cd367c2e81491e9ef54161f3190de40894039ef
SSDEEP 393216:eT3dRx9fnT3dqT3dFT3dBT3dJT3dOT3dq:u3dRrT3da3d53dl3dN3de3dq
TLSH
T169D6221222FC4126E5F72B3AEE7E85A05539BD709E12C06F97103A0D2A76F40C5B67B7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSIA1C5.tmp

Path C:\Windows\Installer\MSIA1C5.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 6646ad04e88a162e3b707984ef371340bb355358c2d7debda1cf71fdd9f5a215
MD5 8ce0b3d1abc791ac488cc84158e2a8e5
SHA1 a58d21953f7393ca3bc9bbb0237999c8e0bb6be7
SHA512 1fccb68186af36eedf2b0855f2d8bb7330f94dcee3f02551e4edb44c85d73a13e13379fadaabbd5f0e1f8c83d226bbb5babb67064fa7e9571d99c7a297ebbee2
SSDEEP 24576:GFo3DMPddoO/vvTL/SwJpilgfrejy7uKkkP7tknB/MnqZeIZ8YhWJwz4Nu1:GH8
TLSH
T12657F71836F92110F7F79E3CA8F0AA2749397D5B9C15DE8D45811B8E0821F71E872F6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{9707986d-643a-4f9f-95e4-7f75820f6879}_OnDiskSnapshotProp

Path \??\Volume{6392210f-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{9707986d-643a-4f9f-95e4-7f75820f6879}_OnDiskSnapshotProp
Size 6KB
SHA256 d1f8d0dde77d4596ca357cc8c38874aa7fa7106c9fbc92432916bd0fff04cf45
MD5 fc37f52fe1f704707c4aebb5f39d5122
SHA1 354378a075b6d7707d549d2706b1117aabf212d5
SHA512 65596f2d72b0e9d4816693f0d2f7f24687698b34c373566594b8fa9cb92873fcd69ae8f8235ff80445feda9df86e71c6bc1e457bd545a88c188a397cfebf6d40
SSDEEP 96:F+l8Fb8vc6DD84LTHzbOHXOHBlBRQn8Sc9XE56tOSVQpu:0l3b++uVm
TLSH
T1A2D1760C5AF54311E2B3AB3128F18557A877B911EF33CB8E0198238E6661A10F875F6B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1260-44-0x0000000005AA0000-0x0000000005C4C000-memory.dmp

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memory/1260-36-0x00000000057C0000-0x00000000057CA000-memory.dmp

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memory/1260-40-0x0000000005860000-0x00000000058EC000-memory.dmp

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memory/1260-32-0x0000000005790000-0x00000000057BE000-memory.dmp

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memory/3860-88-0x000001C4EE6D0000-0x000001C4EF074000-memory.dmp

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memory/4292-6-0x0000000005F80000-0x000000000612C000-memory.dmp

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memory/4292-13-0x0000000074CB0000-0x000000007546C000-memory.dmp

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memory/4292-10-0x0000000074CB0000-0x000000007546C000-memory.dmp

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memory/4292-9-0x0000000074CB0000-0x000000007546C000-memory.dmp

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memory/4292-8-0x0000000006B30000-0x00000000070EA000-memory.dmp

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memory/4292-5-0x00000000038C0000-0x00000000038E2000-memory.dmp

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memory/4292-0-0x0000000074CC2000-0x0000000074CC3000-memory.dmp

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memory/4292-7-0x0000000074CB0000-0x000000007546C000-memory.dmp

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memory/4292-3-0x0000000074CB0000-0x000000007546C000-memory.dmp

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memory/4292-4-0x0000000005EA0000-0x0000000005F2C000-memory.dmp

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memory/4292-2-0x0000000006280000-0x0000000006570000-memory.dmp

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memory/4292-1-0x0000000003880000-0x0000000003888000-memory.dmp

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