6bf0fb1192326455a8eadb19c3d45b352a25020b9cff75d80bcffc376c6f7cfb

Analysis

max time kernel
149s
max time network
123s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260618-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
23/06/2026, 17:42

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample260623-v99veaew7p
SHA256 6bf0fb1192326455a8eadb19c3d45b352a25020b9cff75d80bcffc376c6f7cfb
MD5 2ae4213c3ea5f5088f7c4dc9c7fa2cbb
SHA1 905b71caec23db475282846869b3bc4ddc04fb7a
SHA512 3d25f12e3db3d1a9ef595616376e63ea3d71a35b2c7da2c310e7c1a62e070e55209ce9a2f1b72932ca97cd82d3bbe263e01c3ca0ba5ca4a1a6f56dd9d378cf5e
SSDEEP 98304:pzIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:phfefPtHxcp9ym3nltDUJV
TLSH
T1B446E111B3D695B6D1BF1638D87A42A96774BC048316CBBF5394BD392E32BC04E32366
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/3076-2-0x0000000005B70000-0x0000000005E62000-memory.dmp	revoked_cert_connectwise

Loads dropped DLL 11 IoCs

pid	Process
5524	MsiExec.exe
1428	rundll32.exe
1428	rundll32.exe
1428	rundll32.exe
1428	rundll32.exe
1428	rundll32.exe
1428	rundll32.exe
1428	rundll32.exe
1428	rundll32.exe
1428	rundll32.exe
4880	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)	\??\H:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\G:	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)	\??\S:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\Client.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\Client.Override.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\Client.Override.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f3f02c0c60c1e196)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File created	C:\Windows\SystemTemp\~DF00B0C892C773F0D5.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\e592e69.msi	msiexec.exe
File created	C:\Windows\SystemTemp\~DFB5FAF8E20360AB59.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI33C9.tmp	msiexec.exe
File created	C:\Windows\SystemTemp\~DF7EC54FFABAA94204.TMP	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI33A9.tmp	msiexec.exe
File created	C:\Windows\Installer\{6C10E774-C4A2-4EAD-6242-135B72B94B6A}\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\~DF6E60B32D09BCEBBF.TMP	msiexec.exe
File created	C:\Windows\Installer\e592e69.msi	msiexec.exe
File created	C:\Windows\Installer\SourceHash{6C10E774-C4A2-4EAD-6242-135B72B94B6A}	msiexec.exe
File created	C:\Windows\Installer\e592e6b.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\{6C10E774-C4A2-4EAD-6242-135B72B94B6A}\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	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 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\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\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\SourceList\Media	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\SourceList\Media\1 = ";"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\f3f02c0c60c1e196\\"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f3f02c0c60c1e196\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (f3f02c0c60c1e196)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\3B05FD58E7050D893F0FC2C0061C1E69	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\Clients = 3a0000000000	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\SourceList\Net	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f3f02c0c60c1e196	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\477E01C62A4CDAE4262431B5279BB4A6\Full	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\Language = "1033"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\Assignment = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-f3f02c0c60c1e196\shell\open\command	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\DeploymentFlags = "3"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f3f02c0c60c1e196\URL Protocol	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f3f02c0c60c1e196\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\477E01C62A4CDAE4262431B5279BB4A6	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\SourceList	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f3f02c0c60c1e196\shell\open	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\AdvertiseFlags = "388"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\AuthorizedLUAApp = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\f3f02c0c60c1e196\\"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f3f02c0c60c1e196\UseOriginalUrlEncoding = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f3f02c0c60c1e196\shell	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\InstanceType = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\3B05FD58E7050D893F0FC2C0061C1E69\477E01C62A4CDAE4262431B5279BB4A6	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\PackageCode = "477E01C62A4CDAE4262431B5279BB4A6"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\Version = "419561476"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\ProductIcon = "C:\\Windows\\Installer\\{6C10E774-C4A2-4EAD-6242-135B72B94B6A}\\DefaultIcon"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\477E01C62A4CDAE4262431B5279BB4A6\ProductName = "ScreenConnect Client (f3f02c0c60c1e196)"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-f3f02c0c60c1e196	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3516	msiexec.exe
3516	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3076	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	4596	msiexec.exe
Token: SeIncreaseQuotaPrivilege	4596	msiexec.exe
Token: SeSecurityPrivilege	3516	msiexec.exe
Token: SeCreateTokenPrivilege	4596	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	4596	msiexec.exe
Token: SeLockMemoryPrivilege	4596	msiexec.exe
Token: SeIncreaseQuotaPrivilege	4596	msiexec.exe
Token: SeMachineAccountPrivilege	4596	msiexec.exe
Token: SeTcbPrivilege	4596	msiexec.exe
Token: SeSecurityPrivilege	4596	msiexec.exe
Token: SeTakeOwnershipPrivilege	4596	msiexec.exe
Token: SeLoadDriverPrivilege	4596	msiexec.exe
Token: SeSystemProfilePrivilege	4596	msiexec.exe
Token: SeSystemtimePrivilege	4596	msiexec.exe
Token: SeProfSingleProcessPrivilege	4596	msiexec.exe
Token: SeIncBasePriorityPrivilege	4596	msiexec.exe
Token: SeCreatePagefilePrivilege	4596	msiexec.exe
Token: SeCreatePermanentPrivilege	4596	msiexec.exe
Token: SeBackupPrivilege	4596	msiexec.exe
Token: SeRestorePrivilege	4596	msiexec.exe
Token: SeShutdownPrivilege	4596	msiexec.exe
Token: SeDebugPrivilege	4596	msiexec.exe
Token: SeAuditPrivilege	4596	msiexec.exe
Token: SeSystemEnvironmentPrivilege	4596	msiexec.exe
Token: SeChangeNotifyPrivilege	4596	msiexec.exe
Token: SeRemoteShutdownPrivilege	4596	msiexec.exe
Token: SeUndockPrivilege	4596	msiexec.exe
Token: SeSyncAgentPrivilege	4596	msiexec.exe
Token: SeEnableDelegationPrivilege	4596	msiexec.exe
Token: SeManageVolumePrivilege	4596	msiexec.exe
Token: SeImpersonatePrivilege	4596	msiexec.exe
Token: SeCreateGlobalPrivilege	4596	msiexec.exe
Token: SeCreateTokenPrivilege	4596	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	4596	msiexec.exe
Token: SeLockMemoryPrivilege	4596	msiexec.exe
Token: SeIncreaseQuotaPrivilege	4596	msiexec.exe
Token: SeMachineAccountPrivilege	4596	msiexec.exe
Token: SeTcbPrivilege	4596	msiexec.exe
Token: SeSecurityPrivilege	4596	msiexec.exe
Token: SeTakeOwnershipPrivilege	4596	msiexec.exe
Token: SeLoadDriverPrivilege	4596	msiexec.exe
Token: SeSystemProfilePrivilege	4596	msiexec.exe
Token: SeSystemtimePrivilege	4596	msiexec.exe
Token: SeProfSingleProcessPrivilege	4596	msiexec.exe
Token: SeIncBasePriorityPrivilege	4596	msiexec.exe
Token: SeCreatePagefilePrivilege	4596	msiexec.exe
Token: SeCreatePermanentPrivilege	4596	msiexec.exe
Token: SeBackupPrivilege	4596	msiexec.exe
Token: SeRestorePrivilege	4596	msiexec.exe
Token: SeShutdownPrivilege	4596	msiexec.exe
Token: SeDebugPrivilege	4596	msiexec.exe
Token: SeAuditPrivilege	4596	msiexec.exe
Token: SeSystemEnvironmentPrivilege	4596	msiexec.exe
Token: SeChangeNotifyPrivilege	4596	msiexec.exe
Token: SeRemoteShutdownPrivilege	4596	msiexec.exe
Token: SeUndockPrivilege	4596	msiexec.exe
Token: SeSyncAgentPrivilege	4596	msiexec.exe
Token: SeEnableDelegationPrivilege	4596	msiexec.exe
Token: SeManageVolumePrivilege	4596	msiexec.exe
Token: SeImpersonatePrivilege	4596	msiexec.exe
Token: SeCreateGlobalPrivilege	4596	msiexec.exe
Token: SeCreateTokenPrivilege	4596	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	4596	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4596	msiexec.exe
4596	msiexec.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4596	msiexec.exe
3516	msiexec.exe
5524	MsiExec.exe
4880	MsiExec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3076 wrote to memory of 4596	3076	ScreenConnect.ClientSetup.exe	88
PID 3516 wrote to memory of 5524	3516	msiexec.exe	90
PID 5524 wrote to memory of 1428	5524	MsiExec.exe	91
PID 3516 wrote to memory of 2392	3516	msiexec.exe	96
PID 3516 wrote to memory of 4880	3516	msiexec.exe	98

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:3076
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\f3f02c0c60c1e196\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:4596

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:3516
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 58D117E53C9C11553D3C9ECAFCF34425 C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5524
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIE990.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240708125 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1428
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:2392
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding BD8B1C46B35A426DD6835DBC49AE7128
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4880

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:2264

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

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Downloads

e592e6a.rbs

Path C:\Config.Msi\e592e6a.rbs
Size 10KB
SHA256 c28f83981473979071fbac3a6ffbdd76000fb160c3ca279b1e34c15a6cb8cc15
MD5 5eb79cb62f5a3ec87d2c52693a57ab10
SHA1 f527dcaf3e118e1de4421512c3cbd6de1a55c50b
SHA512 1cfc2faedbbd2476eb1d6bbf8baacc4f889ef24530ad30491ef4379a14a97f64ebfc464dbf30dd932df583799f523d4ca484f01c0e05da434fb5fdd3cd454ac9
SSDEEP 192:K/iH5beqA9i+S4aKN+WRDibE6hr4vmwHCXWmhIXmhTF0kUO1Gdph:QiHReqA9i+S4aKN+WRDibE6V4vmwtmO5
TLSH
T18E221E01361191F2E5665B72C7871A983BB2EAE95360634F89CC903D8E23F8C1B7D5DB
MD5 SHA1 SHA512 SSDEEP TLSH

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MSIE990.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSIE990.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

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Microsoft.Deployment.WindowsInstaller.dll

Path C:\Users\Admin\AppData\Local\Temp\MSIE990.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

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ScreenConnect.Core.dll

Path C:\Users\Admin\AppData\Local\Temp\MSIE990.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\MSIE990.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\MSIE990.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

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ScreenConnect.ClientSetup.msi

Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\f3f02c0c60c1e196\ScreenConnect.ClientSetup.msi
Size 12.9MB
SHA256 e8600b599348f423f0dda8e9954a8ba202bb5e4a865b40f8d9fbb2df3a1e7805
MD5 d54bbf02891e525caab0e7365f4cbac4
SHA1 ae2f4ece271d79c93958c3e99ca93ab1aa8459d0
SHA512 437c78f92c61650eb9d163fee0745d96db96f55b7f0ce7effa6348933b3474398659822573492591046fc8ed99b4b5d003f5372375cefda3edd7dbddc4948f91
SSDEEP 196608:QHxcp9ym3nltDUJV1Hxcp9ym3hHxcp9ym3wHxcp9ym3gHxcp9ym3ZHxcp9ym3THk:+GplpWGpTGpeGpOGprGp9Gp
TLSH
T178D623156BF89668F1F22A35EC76A0B0A5377D125E27D12E2324B51E2C75EC0C9A3733
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI33C9.tmp

Path C:\Windows\Installer\MSI33C9.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 1ec8858bba64b4606ef23fdc8940055208be2f6c8726514d4d54fc61f971417e
MD5 5f8f8b94411c3b4d04ba2c1076927a6b
SHA1 7301d2e1d10e29dd2a04614d28c513b237db3f4b
SHA512 bacc62feed019318606954cf6b3022969ccb003f7b32d50df946a829cd857dcc993f9a34e42d180bc7481c40e606b3c4e665a9604c63eed0bca9a1eb1bb02751
SSDEEP 24576:dFo3DMPFdoO/vvTL/SgFlClwvbev+7iGUYTXNo79zwLqJiU1MIRmlcPEB+Z:dHs
TLSH
T1A857B41436F92210F7F79E3CA8F06A23493A7D5BAC15DE8D45411B8E0862F71E872F66
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{498d3167-bb92-4aeb-86f8-96df3cbbcd14}_OnDiskSnapshotProp

Path \??\Volume{64a8eebf-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{498d3167-bb92-4aeb-86f8-96df3cbbcd14}_OnDiskSnapshotProp
Size 6KB
SHA256 24cc6d6039f5c8d615bb0652ea470b2e797faef4f61ce619cb6e33ba2d025704
MD5 a40dfdae124ea7a45da64261400a4161
SHA1 618de23a803f45d84edb09e630ef403e9a90f35b
SHA512 d5880c73bb5ad576fee745f952e4b92669d7c56f8717de62920a452396459f063c0f32371d70c38aadb8e28272112bd857e46d0e9f622355de04860c408e8fc3
SSDEEP 96:FY9bkFvc6DD84LTHzbOHXOHBlBRQn8Sc9XE56tOSVQpu:WCb++uVm
TLSH
T148D1870C1AF54311E2B3AB7128F18557A837B911FF33CB8E0298238E6661910F975F6B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1428-44-0x0000000005620000-0x00000000057CC000-memory.dmp

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memory/1428-40-0x00000000053E0000-0x000000000546C000-memory.dmp

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memory/1428-36-0x00000000032A0000-0x00000000032AA000-memory.dmp

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memory/1428-32-0x00000000032C0000-0x00000000032EE000-memory.dmp

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memory/3076-4-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/3076-1-0x0000000001970000-0x0000000001978000-memory.dmp

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memory/3076-7-0x0000000006420000-0x00000000069DA000-memory.dmp

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memory/3076-13-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/3076-3-0x0000000005670000-0x00000000056FC000-memory.dmp

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memory/3076-10-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/3076-5-0x00000000032E0000-0x0000000003302000-memory.dmp

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memory/3076-8-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/3076-9-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/3076-0-0x0000000074232000-0x0000000074233000-memory.dmp

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memory/3076-6-0x0000000005870000-0x0000000005A1C000-memory.dmp

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memory/3076-2-0x0000000005B70000-0x0000000005E62000-memory.dmp

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memory/3516-79-0x000001FE08790000-0x000001FE0885D000-memory.dmp

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memory/3516-91-0x000001FE08790000-0x000001FE0885D000-memory.dmp

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