5a5fcb68bc9955698ede325d9b13cad4d7c3cd78b328373994910ccc99fc0777

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
03/05/2026, 12:17

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.5MB
Sample260503-pf91escs2n
SHA256 5a5fcb68bc9955698ede325d9b13cad4d7c3cd78b328373994910ccc99fc0777
MD5 1be4e3a94b664da4a470182bbc972ed2
SHA1 a8f515c21827fad3284bf764c969fdfaa152d8dd
SHA512 9361a8c4b1c39f2ef91632972b2febd875f99452457d8a1addaf711cda26a8328493a87a50ed33926c467d78401e3951dda168496acd3476e576dee776e95f95
SSDEEP 49152:1EEL5cx5xTkYJkGYYpT0+TFiH7efP8Q1yJJ4ZD1F5z97oL1YbGQ+okRPGHpRPqM8:6Es6efPNwJ4t1h0cG5FGJRPxow8O
TLSH
T14946E111B3D995B9D47F0638D87B4269AAB4BC048712C7EF5394BD2D2D32BC05E323A6
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
behavioral1/memory/4552-3-0x0000000005D00000-0x0000000005FF0000-memory.dmp	revoked_cert_connectwise

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-914486190-3969805341-592249730-1000\Control Panel\International\Geo\Nation	ScreenConnect.ClientSetup.exe

Loads dropped DLL 11 IoCs

pid	Process
5460	MsiExec.exe
4396	rundll32.exe
4396	rundll32.exe
4396	rundll32.exe
4396	rundll32.exe
4396	rundll32.exe
4396	rundll32.exe
4396	rundll32.exe
4396	rundll32.exe
4396	rundll32.exe
4972	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)	\??\J:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\Client.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\Client.Override.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\Client.Override.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (2439ff59bf8ed0fa)\ScreenConnect.Client.dll	msiexec.exe

Drops file in Windows directory 11 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\e58507c.msi	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File created	C:\Windows\Installer\SourceHash{618F65B4-ED61-73A5-22D8-C968A94AFD26}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI51B5.tmp	msiexec.exe
File created	C:\Windows\Installer\{618F65B4-ED61-73A5-22D8-C968A94AFD26}\DefaultIcon	msiexec.exe
File opened for modification	C:\Windows\Installer\{618F65B4-ED61-73A5-22D8-C968A94AFD26}\DefaultIcon	msiexec.exe
File created	C:\Windows\Installer\e58507c.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI51E5.tmp	msiexec.exe
File created	C:\Windows\Installer\e58507e.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 created	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\28	msiexec.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\CLASSES\LOCAL SETTINGS\MUICACHE\27\52C64B7E	msiexec.exe
Key deleted	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27	msiexec.exe

Modifies registry class 32 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\Version = "402849799"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\AdvertiseFlags = "388"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\58F229CE1D8110104293FF95FBE80DAF\4B56F81616DE5A37228D9C869AA4DF62	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\SourceList	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\SourceList\Net	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\ProductName = "ScreenConnect Client (2439ff59bf8ed0fa)"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-2439ff59bf8ed0fa\URL Protocol	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-2439ff59bf8ed0fa\UseOriginalUrlEncoding = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-2439ff59bf8ed0fa\shell\open	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\Assignment = "1"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\24.3.7.9067\\2439ff59bf8ed0fa\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-2439ff59bf8ed0fa\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\4B56F81616DE5A37228D9C869AA4DF62	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\4B56F81616DE5A37228D9C869AA4DF62\Full	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\ProductIcon = "C:\\Windows\\Installer\\{618F65B4-ED61-73A5-22D8-C968A94AFD26}\\DefaultIcon"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\58F229CE1D8110104293FF95FBE80DAF	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\SourceList\Media	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\InstanceType = "0"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\Language = "1033"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\AuthorizedLUAApp = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\SourceList\Media\1 = ";"	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\Clients = 3a0000000000	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-2439ff59bf8ed0fa	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\DeploymentFlags = "3"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\24.3.7.9067\\2439ff59bf8ed0fa\\"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4B56F81616DE5A37228D9C869AA4DF62\PackageCode = "4B56F81616DE5A37228D9C869AA4DF62"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-2439ff59bf8ed0fa	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-2439ff59bf8ed0fa\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-2439ff59bf8ed0fa\shell\open\command	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-2439ff59bf8ed0fa\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (2439ff59bf8ed0fa)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5408	msiexec.exe
5408	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4552	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	5832	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5832	msiexec.exe
Token: SeSecurityPrivilege	5408	msiexec.exe
Token: SeCreateTokenPrivilege	5832	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5832	msiexec.exe
Token: SeLockMemoryPrivilege	5832	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5832	msiexec.exe
Token: SeMachineAccountPrivilege	5832	msiexec.exe
Token: SeTcbPrivilege	5832	msiexec.exe
Token: SeSecurityPrivilege	5832	msiexec.exe
Token: SeTakeOwnershipPrivilege	5832	msiexec.exe
Token: SeLoadDriverPrivilege	5832	msiexec.exe
Token: SeSystemProfilePrivilege	5832	msiexec.exe
Token: SeSystemtimePrivilege	5832	msiexec.exe
Token: SeProfSingleProcessPrivilege	5832	msiexec.exe
Token: SeIncBasePriorityPrivilege	5832	msiexec.exe
Token: SeCreatePagefilePrivilege	5832	msiexec.exe
Token: SeCreatePermanentPrivilege	5832	msiexec.exe
Token: SeBackupPrivilege	5832	msiexec.exe
Token: SeRestorePrivilege	5832	msiexec.exe
Token: SeShutdownPrivilege	5832	msiexec.exe
Token: SeDebugPrivilege	5832	msiexec.exe
Token: SeAuditPrivilege	5832	msiexec.exe
Token: SeSystemEnvironmentPrivilege	5832	msiexec.exe
Token: SeChangeNotifyPrivilege	5832	msiexec.exe
Token: SeRemoteShutdownPrivilege	5832	msiexec.exe
Token: SeUndockPrivilege	5832	msiexec.exe
Token: SeSyncAgentPrivilege	5832	msiexec.exe
Token: SeEnableDelegationPrivilege	5832	msiexec.exe
Token: SeManageVolumePrivilege	5832	msiexec.exe
Token: SeImpersonatePrivilege	5832	msiexec.exe
Token: SeCreateGlobalPrivilege	5832	msiexec.exe
Token: SeCreateTokenPrivilege	5832	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5832	msiexec.exe
Token: SeLockMemoryPrivilege	5832	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5832	msiexec.exe
Token: SeMachineAccountPrivilege	5832	msiexec.exe
Token: SeTcbPrivilege	5832	msiexec.exe
Token: SeSecurityPrivilege	5832	msiexec.exe
Token: SeTakeOwnershipPrivilege	5832	msiexec.exe
Token: SeLoadDriverPrivilege	5832	msiexec.exe
Token: SeSystemProfilePrivilege	5832	msiexec.exe
Token: SeSystemtimePrivilege	5832	msiexec.exe
Token: SeProfSingleProcessPrivilege	5832	msiexec.exe
Token: SeIncBasePriorityPrivilege	5832	msiexec.exe
Token: SeCreatePagefilePrivilege	5832	msiexec.exe
Token: SeCreatePermanentPrivilege	5832	msiexec.exe
Token: SeBackupPrivilege	5832	msiexec.exe
Token: SeRestorePrivilege	5832	msiexec.exe
Token: SeShutdownPrivilege	5832	msiexec.exe
Token: SeDebugPrivilege	5832	msiexec.exe
Token: SeAuditPrivilege	5832	msiexec.exe
Token: SeSystemEnvironmentPrivilege	5832	msiexec.exe
Token: SeChangeNotifyPrivilege	5832	msiexec.exe
Token: SeRemoteShutdownPrivilege	5832	msiexec.exe
Token: SeUndockPrivilege	5832	msiexec.exe
Token: SeSyncAgentPrivilege	5832	msiexec.exe
Token: SeEnableDelegationPrivilege	5832	msiexec.exe
Token: SeManageVolumePrivilege	5832	msiexec.exe
Token: SeImpersonatePrivilege	5832	msiexec.exe
Token: SeCreateGlobalPrivilege	5832	msiexec.exe
Token: SeCreateTokenPrivilege	5832	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5832	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5832	msiexec.exe
5832	msiexec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 5832	4552	ScreenConnect.ClientSetup.exe	85
PID 5408 wrote to memory of 5460	5408	msiexec.exe	88
PID 5460 wrote to memory of 4396	5460	MsiExec.exe	89
PID 5408 wrote to memory of 3608	5408	msiexec.exe	98
PID 5408 wrote to memory of 4972	5408	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⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4552
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\24.3.7.9067\2439ff59bf8ed0fa\ScreenConnect.ClientSetup.msi"
  2⤵
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:5832

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 WriteProcessMemory
PID:5408
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 7C9ACC6515C70833BA4CAF3C89244E49 C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5460
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI147D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240653562 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:4396
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:3608
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding F567443A6D18D48E0CF246E3EE00EBB1
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4972

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:3788

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

e58507d.rbs

Path C:\Config.Msi\e58507d.rbs
Size 10KB
SHA256 96241b0880dca424af90d204e969060815bae9fad2a50c8bcf6a23bd41101b0f
MD5 18aa2746ad5a529d71c73f273628981d
SHA1 001cc04ee2d8903a10121d3cea694ca110e651f9
SHA512 ab6f2779e6a483975ba730d868673a4e56056f41923e67447dc6a910d4e327efe15d2144dd49ef7f5cbf3153a69038977ae2cde128c0901b0615d474f7e8f7fc
SSDEEP 96:WCVCWK/CN6GVjaHazHeSkfmUA9MHCsThqSUA9MHC6jniGnpThqsHGO5PQz09adCd:WsK/hWVHerZwMiI8wMiW7qWgpy
TLSH
T14A222212BA01A1E1F5A36F76D3031A143F72A9E4E754225F4ACC90788DA27CD5B7D3C9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI147D.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI147D.tmp
Size 1.0MB
SHA256 0918d8ab2237368a5cec8ce99261fb07a1a1beeda20464c0f91af0fe3349636b
MD5 8a8767f589ea2f2c7496b63d8ccc2552
SHA1 cc5de8dd18e7117d8f2520a51edb1d165cae64b0
SHA512 518231213ca955acdf37b4501fde9c5b15806d4fc166950eb8706e8d3943947cf85324faee806d7df828485597eceffcfa05ca1a5d8ab1bd51ed12df963a1fe4
SSDEEP 24576:QUUGGHn+rUGemcPe9MpKL4Plb2sZWV+tLv0QYu5OPthT+gd:jGHpRPqMpvlqs0O4iO2k
TLSH
T18C35231873E9C436F5E679385E32A1D205FCBE764E70904E6B99292C0DB0F82D6B4763
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Microsoft.Deployment.WindowsInstaller.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI147D.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\MSI147D.tmp-\ScreenConnect.Core.dll
Size 536KB
SHA256 a2e9752de49d18e885cbd61b29905983d44b4bc0379a244bfabdaa3188c01f0a
MD5 14e7489ffebbb5a2ea500f796d881ad9
SHA1 0323ee0e1faa4aa0e33fb6c6147290aa71637ebd
SHA512 2110113240b7d803d8271139e0a2439dbc86ae8719ecd8b132bbda2520f22dc3f169598c8e966ac9c0a40e617219cb8fe8aac674904f6a1ae92d4ac1e20627cd
SSDEEP 12288:xC2YKhQCNc6kVTplfWL/YTHUYCBdySISYz:HhE6O7WL/EC
TLSH
T12BC47D2233AC9A2EC56E133BB072915DC5F0E906351AF79F76C5E5BC2EC27450E112EA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.InstallerActions.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI147D.tmp-\ScreenConnect.InstallerActions.dll
Size 11KB
SHA256 d727a640723d192aa3ece213a173381682041cb28d8bd71781524dbae3ddbf62
MD5 73a24164d8408254b77f3a2c57a22ab4
SHA1 ea0215721f66a93d67019d11c4e588a547cc2ad6
SHA512 650d4320d9246aaecd596ac8b540bf7612ec7a8f60ecaa6e9c27b547b751386222ab926d0c915698d0bb20556475da507895981c072852804f0b42fdda02b844
SSDEEP 192:V8/Qp6lCJuV3jHXtyVNamVNG1YZfCrMmbfHJ7kjvLjbuLd9NEFbM64:y/cBJaLXt2NaheUrMmb/FkjvLjbuZj64
TLSH
T1F932E70077DC533AE8BE1F78EEB361910A71FB64A011DF2E18CCA1569C367449EA07A3
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.Windows.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI147D.tmp-\ScreenConnect.Windows.dll
Size 1.6MB
SHA256 84a09ed81afc5ff9a17f81763c044c82a2d9e26f852de528112153ee9ab041d0
MD5 9ad3964ba3ad24c42c567e47f88c82b2
SHA1 6b4b581fc4e3ecb91b24ec601daa0594106bcc5d
SHA512 ce557a89c0fe6de59046116c1e262a36bbc3d561a91e44dcda022bef72cb75742c8b01bedcc5b9b999e07d8de1f94c665dd85d277e981b27b6bfebeaf9e58097
SSDEEP 24576:dx5xeYkYFj+Ifz3zvnXj/zXzvAAkGz8mvgtX79S+2bfh+RfmT01krTFiH4SqfKPo:dx5xTkYJkGYYpT0+TFiH7efP
TLSH
T1DC85BD41E2C365F5D46B047888BF572ABA743C080315CAFB97D4AE396D33BC09A36756
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ScreenConnect.ClientSetup.msi

Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\24.3.7.9067\2439ff59bf8ed0fa\ScreenConnect.ClientSetup.msi
Size 13.1MB
SHA256 7ddf9ea16c79d3706a3bd6941d7e5214681594a00cf5db98b99dd15b9545373a
MD5 7bbe59b2cf8184f654ab1b19ba625897
SHA1 b837e5b435f6c0932c961ad3ace8732390c88377
SHA512 3673289007f6681dc1890ed02e1d42d19598cc901759149b3c741a4dce73730726e8b10d6de19eec6c36e76b8ec33b91f06a48b6a86a135c18d10a2f2601ee68
SSDEEP 196608:dWh0cGwyWh0cGzWh0cG7Wh0cGUWh0cGHWh0cGgWh0cG:dWac8WacGWacgWac7Wac+Wac7Wac
TLSH
T1F4D6231523FC445AE8B75B38ED7743A87E72BE64CE21C11E5228791C2D34E809A727B7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI51E5.tmp

Path C:\Windows\Installer\MSI51E5.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 24.1MB
SHA256 2f7108ab921a131637d4c1134dc3f8bdb0755b1b0a3a7accd77814ddd57ad016
MD5 c9290f19aae86a8ca27dfae588d942e5
SHA1 7e4d4d8484bb7a42854128a5fd4243ee8dbea535
SHA512 8863af7c54229473b969f8fa2512c8eb3365041673d48cbc82d2d534ac8e495dd6c9c104bd8a5bd28909568deb5a4dd638d95a5bb651b0251c227f8e9dc037ce
SSDEEP 24576:Wu8m+1zQdoO/vvTLb23+SmKDmeEjfVXSLB2tlYG1vkaG+wOq4flu/BMBy:t
TLSH
T1CD47A52436F92100E7F79F3CA8F06A63893D7D579C15DE8D45411B8E0922BB1E872F6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{0361b171-11dd-469c-be22-37fa9dc8d276}_OnDiskSnapshotProp

Path \??\Volume{568a4ae8-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{0361b171-11dd-469c-be22-37fa9dc8d276}_OnDiskSnapshotProp
Size 6KB
SHA256 21ee45c054f2fba4d2c46b34bf3ad51430b749e48519008f708b4a8106451613
MD5 a61c591cc260c2f1e130cb08d2e3c7a3
SHA1 99f7fefa98fff6d2c8778d562ef7f9dc40c145cc
SHA512 0b03218d302712b9e82f2d4d6e113154b18dc3415222a7c0b3727cbece40fd826775ed610fb4a5d4aa643f6e09139ac7457fbd366a2e1af2d040a8272b553460
SSDEEP 96:FyhkhF6vc8DD84LTHzbOHXOHBlBRQ88Sc9XE56tOSVQpu:Mnb++ZVm
TLSH
T1E0D178085AE54711E2B3AB7128F54557A877B911EF33CB8E0298238E6671A10F835F6F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3608-91-0x0000021179620000-0x00000211796C9000-memory.dmp

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memory/3788-49-0x0000022428BE0000-0x0000022428C89000-memory.dmp

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memory/4396-42-0x0000000004E60000-0x000000000500A000-memory.dmp

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memory/4396-38-0x0000000004C20000-0x0000000004CAC000-memory.dmp

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memory/4396-34-0x0000000004B70000-0x0000000004B7A000-memory.dmp

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memory/4396-30-0x0000000004B30000-0x0000000004B5E000-memory.dmp

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memory/4552-4-0x0000000005900000-0x000000000598C000-memory.dmp

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memory/4552-7-0x00000000065A0000-0x0000000006B44000-memory.dmp

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memory/4552-0-0x00000000059F0000-0x0000000005A00000-memory.dmp

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memory/4552-6-0x0000000005A00000-0x0000000005BAA000-memory.dmp

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memory/4552-5-0x00000000059A0000-0x00000000059C2000-memory.dmp

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memory/4552-8-0x00000000059F0000-0x0000000005A00000-memory.dmp

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memory/4552-3-0x0000000005D00000-0x0000000005FF0000-memory.dmp

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memory/4552-2-0x00000000059F0000-0x0000000005A00000-memory.dmp

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memory/4552-1-0x0000000003290000-0x0000000003298000-memory.dmp

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memory/5408-48-0x000002D510630000-0x000002D5106DC000-memory.dmp

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memory/5408-92-0x000002D510630000-0x000002D5106DC000-memory.dmp

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