f1f46f5010ce1d182021e54dbd77099c94efcc23c2925bf4d777e052b84db65a

Analysis

max time kernel
149s
max time network
96s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
02/06/2026, 00:18

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample260602-althashw4y
SHA256 f1f46f5010ce1d182021e54dbd77099c94efcc23c2925bf4d777e052b84db65a
MD5 59b7ef3876b32d6e76060afd5175647f
SHA1 477d567423562b8ade908ffc0152030e633448e5
SHA512 fc3246591d89cbfc7efa988ed2a8784ce635171cc11a9b4b1b000a48a6fde2ae54b6007a934520bae6558290547cfe66166d963b97cc4651abccd8561b05f8b2
SSDEEP 98304:yzIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:yhfefPtHxcp9ym3nltDUJV
TLSH
T15C46E101B3D695B6D1BF1638D87A56696734BC048312CBBF5794BD392E32BC04E323A6
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/3772-4-0x0000000005AC0000-0x0000000005DB2000-memory.dmp	revoked_cert_connectwise

Loads dropped DLL 11 IoCs

pid	Process
5096	MsiExec.exe
3468	rundll32.exe
3468	rundll32.exe
3468	rundll32.exe
3468	rundll32.exe
3468	rundll32.exe
3468	rundll32.exe
3468	rundll32.exe
3468	rundll32.exe
3468	rundll32.exe
1676	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)	\??\A:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\O:	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)	\??\W:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\Client.Override.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\Client.Override.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (f653106748e0c08c)\Client.resources	msiexec.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\Installer\SourceHash{9FC5F11E-4E25-8A31-F2D3-C61ACF6FC2B5}	msiexec.exe
File opened for modification	C:\Windows\Installer\{9FC5F11E-4E25-8A31-F2D3-C61ACF6FC2B5}\DefaultIcon	msiexec.exe
File created	C:\Windows\SystemTemp\~DF0153AB29BD5CDC23.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DF54664819FB6278DD.TMP	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File created	C:\Windows\SystemTemp\~DFBC4FEF61AFE396E8.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DFC9B0E7A102DD3488.TMP	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI750C.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI752C.tmp	msiexec.exe
File created	C:\Windows\Installer\e58730a.msi	msiexec.exe
File created	C:\Windows\Installer\{9FC5F11E-4E25-8A31-F2D3-C61ACF6FC2B5}\DefaultIcon	msiexec.exe
File created	C:\Windows\Installer\e587308.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\e587308.msi	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ScreenConnect.ClientSetup.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-f653106748e0c08c	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\E11F5CF952E413A82F3D6CA1FCF62C5B\Full	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\ProductName = "ScreenConnect Client (f653106748e0c08c)"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\AdvertiseFlags = "388"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\ProductIcon = "C:\\Windows\\Installer\\{9FC5F11E-4E25-8A31-F2D3-C61ACF6FC2B5}\\DefaultIcon"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\InstanceType = "0"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\AuthorizedLUAApp = "0"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\SourceList	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f653106748e0c08c\UseOriginalUrlEncoding = "1"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\DeploymentFlags = "3"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\SourceList\Media\1 = ";"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\SourceList\Net	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f653106748e0c08c\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f653106748e0c08c\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\460EF5FC91FDE9506F350176840E0CC8	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-f653106748e0c08c\shell\open\command	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f653106748e0c08c\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (f653106748e0c08c)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\E11F5CF952E413A82F3D6CA1FCF62C5B	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\Assignment = "1"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f653106748e0c08c\URL Protocol	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\460EF5FC91FDE9506F350176840E0CC8\E11F5CF952E413A82F3D6CA1FCF62C5B	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\f653106748e0c08c\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-f653106748e0c08c\shell\open	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\Language = "1033"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\Version = "419561476"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\f653106748e0c08c\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\SourceList\Media	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\Clients = 3a0000000000	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-f653106748e0c08c	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\E11F5CF952E413A82F3D6CA1FCF62C5B\PackageCode = "E11F5CF952E413A82F3D6CA1FCF62C5B"	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2280	msiexec.exe
2280	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3772	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	1108	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1108	msiexec.exe
Token: SeSecurityPrivilege	2280	msiexec.exe
Token: SeCreateTokenPrivilege	1108	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1108	msiexec.exe
Token: SeLockMemoryPrivilege	1108	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1108	msiexec.exe
Token: SeMachineAccountPrivilege	1108	msiexec.exe
Token: SeTcbPrivilege	1108	msiexec.exe
Token: SeSecurityPrivilege	1108	msiexec.exe
Token: SeTakeOwnershipPrivilege	1108	msiexec.exe
Token: SeLoadDriverPrivilege	1108	msiexec.exe
Token: SeSystemProfilePrivilege	1108	msiexec.exe
Token: SeSystemtimePrivilege	1108	msiexec.exe
Token: SeProfSingleProcessPrivilege	1108	msiexec.exe
Token: SeIncBasePriorityPrivilege	1108	msiexec.exe
Token: SeCreatePagefilePrivilege	1108	msiexec.exe
Token: SeCreatePermanentPrivilege	1108	msiexec.exe
Token: SeBackupPrivilege	1108	msiexec.exe
Token: SeRestorePrivilege	1108	msiexec.exe
Token: SeShutdownPrivilege	1108	msiexec.exe
Token: SeDebugPrivilege	1108	msiexec.exe
Token: SeAuditPrivilege	1108	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1108	msiexec.exe
Token: SeChangeNotifyPrivilege	1108	msiexec.exe
Token: SeRemoteShutdownPrivilege	1108	msiexec.exe
Token: SeUndockPrivilege	1108	msiexec.exe
Token: SeSyncAgentPrivilege	1108	msiexec.exe
Token: SeEnableDelegationPrivilege	1108	msiexec.exe
Token: SeManageVolumePrivilege	1108	msiexec.exe
Token: SeImpersonatePrivilege	1108	msiexec.exe
Token: SeCreateGlobalPrivilege	1108	msiexec.exe
Token: SeCreateTokenPrivilege	1108	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1108	msiexec.exe
Token: SeLockMemoryPrivilege	1108	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1108	msiexec.exe
Token: SeMachineAccountPrivilege	1108	msiexec.exe
Token: SeTcbPrivilege	1108	msiexec.exe
Token: SeSecurityPrivilege	1108	msiexec.exe
Token: SeTakeOwnershipPrivilege	1108	msiexec.exe
Token: SeLoadDriverPrivilege	1108	msiexec.exe
Token: SeSystemProfilePrivilege	1108	msiexec.exe
Token: SeSystemtimePrivilege	1108	msiexec.exe
Token: SeProfSingleProcessPrivilege	1108	msiexec.exe
Token: SeIncBasePriorityPrivilege	1108	msiexec.exe
Token: SeCreatePagefilePrivilege	1108	msiexec.exe
Token: SeCreatePermanentPrivilege	1108	msiexec.exe
Token: SeBackupPrivilege	1108	msiexec.exe
Token: SeRestorePrivilege	1108	msiexec.exe
Token: SeShutdownPrivilege	1108	msiexec.exe
Token: SeDebugPrivilege	1108	msiexec.exe
Token: SeAuditPrivilege	1108	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1108	msiexec.exe
Token: SeChangeNotifyPrivilege	1108	msiexec.exe
Token: SeRemoteShutdownPrivilege	1108	msiexec.exe
Token: SeUndockPrivilege	1108	msiexec.exe
Token: SeSyncAgentPrivilege	1108	msiexec.exe
Token: SeEnableDelegationPrivilege	1108	msiexec.exe
Token: SeManageVolumePrivilege	1108	msiexec.exe
Token: SeImpersonatePrivilege	1108	msiexec.exe
Token: SeCreateGlobalPrivilege	1108	msiexec.exe
Token: SeCreateTokenPrivilege	1108	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1108	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1108	msiexec.exe
1108	msiexec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3772 wrote to memory of 1108	3772	ScreenConnect.ClientSetup.exe	80
PID 2280 wrote to memory of 5096	2280	msiexec.exe	82
PID 5096 wrote to memory of 3468	5096	MsiExec.exe	83
PID 2280 wrote to memory of 3272	2280	msiexec.exe	87
PID 2280 wrote to memory of 1676	2280	msiexec.exe	89

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:3772
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\f653106748e0c08c\ScreenConnect.ClientSetup.msi"
  2⤵
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:1108

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:2280
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 72FC0C1767932ACDE8B5EC5D1C6F1B36 C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5096
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3A35.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240663250 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3468
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:3272
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding A210FA490260F078739F245317538174
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1676

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:4856

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

e587309.rbs

Path C:\Config.Msi\e587309.rbs
Size 10KB
SHA256 8905cf0c8db8ccc2524297c4abd04bc55a48500867d3d330ddad30f84b559cad
MD5 e20d2ab44c10e1287cd269318357546a
SHA1 f5446585382b0a26978cbe217645df1a202ef9bf
SHA512 8cbaa979fc91643e77eba00e6eec4fb7bca3dd597dc14256c0316b26c8fb580f0a7538bb43484fc4ccae029d1c67157ad0462bb18817005f1cc00f82d6089c8e
SSDEEP 96:lBSZwQide2s+A9oGOjrfNidC3Nq9U+jiCsThqQU+jiC6jxvhYThqJHNLz5KD4dsM:lkzips+zdcdCUWqhI6qhvgzOS2p6
TLSH
T1C7221101370094D3EAA60B32CB871A153BB2EAECA710225F95CD957D8E9378D5B7D2C7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI3A35.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI3A35.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\MSI3A35.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\MSI3A35.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\MSI3A35.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\MSI3A35.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\f653106748e0c08c\ScreenConnect.ClientSetup.msi
Size 12.8MB
SHA256 c6c0a01f8cad3f983938cce24796209d511ef9185b4033648e81a7a5980fc016
MD5 421698e0e400a6e6542a4273bff209b1
SHA1 844ac81e4cab4ed6bb7264d28f75bf810df9c47e
SHA512 1b7cbfd76c6e1471ab57906caf9ab9cd732d078035eb73129ae0aca3f8c5bdd66101267e647146541ae50b6b7d0f11068a59e6488179b1640422abca92889945
SSDEEP 196608:OHxcp9ym3nltDUJVjHxcp9ym3nHxcp9ym3MHxcp9ym3NHxcp9ym3wHxcp9ym3gH9:cGplpUGpRGpqGp/GpeGpOGpG
TLSH
T1BFD623516BF89278F0F22A35EC7AA0B0A53B7D515D22D12E2324791E2C75EC0C9A3777
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI752C.tmp

Path C:\Windows\Installer\MSI752C.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 24.6MB
SHA256 60745b3771390ddc9cfd3c64a3379d4463f1a996a01102a69df4da0995e19f50
MD5 34a313ac5c887acf9e486bb86050fa84
SHA1 0246837b92ae8b1da7c7f7e1711b027c4b2f0096
SHA512 45d817de811b5891004ab19cfe75f0d72c914371d081f40a45bd5ab687083b759b04157715907b1d139445a7f307553922ff6a2ffffe3fa6492caa13a139ed07
SSDEEP 24576:j2gmSp1FdoO/vvTL3WcexEH6f653QIY222/t3pksV3aY0g4JoXt77Bm7B:v
TLSH
T16347062436F92150E7F39E3CA8F4AA235A397D579C19DE8D05811B8D0921FB0E872F5B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{8d4d4d45-8e70-42e3-96bc-5dd8911a749e}_OnDiskSnapshotProp

Path \??\Volume{a56ea927-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{8d4d4d45-8e70-42e3-96bc-5dd8911a749e}_OnDiskSnapshotProp
Size 6KB
SHA256 7e0cc5f39eacd3d78369ddb0503f683755909b91333a49d0ce698b6c5eb78ad7
MD5 6340cdea18342690535fb2f534a46de7
SHA1 d85d6d9cda8a76185b4a6eb3ea541994785d95c9
SHA512 338d2ae7e9e4325384a5ed8cda69cf9928eb2a28920a6de81918cc978b1822dee86b81f996cd5059b07d8c2dea55ed18e7ddc2e932e4b5a03824c4c0b2e10190
SSDEEP 96:FKie1Zvc8DD84LTHzbOHXOHBlBRQ88Sc9XE56tOSVQpu:sxb++ZVm
TLSH
T19ED199085AE54711E2B3AB722CF18557A877B911EF33CB8E0198638E6670910F875F6F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3468-35-0x00000000054C0000-0x00000000054CA000-memory.dmp

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memory/3468-39-0x0000000005560000-0x00000000055EC000-memory.dmp

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memory/3468-31-0x0000000005470000-0x000000000549E000-memory.dmp

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memory/3468-43-0x00000000057A0000-0x000000000594C000-memory.dmp

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memory/3772-7-0x0000000005880000-0x0000000005A2C000-memory.dmp

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memory/3772-8-0x0000000006360000-0x0000000006906000-memory.dmp

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memory/3772-6-0x0000000005860000-0x0000000005882000-memory.dmp

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memory/3772-9-0x00000000057B0000-0x00000000057C0000-memory.dmp

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memory/3772-0-0x00000000057B0000-0x00000000057C0000-memory.dmp

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memory/3772-5-0x00000000057C0000-0x000000000584C000-memory.dmp

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memory/3772-4-0x0000000005AC0000-0x0000000005DB2000-memory.dmp

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memory/3772-3-0x00000000057B0000-0x00000000057C0000-memory.dmp

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memory/3772-2-0x00000000057B0000-0x00000000057C0000-memory.dmp

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memory/3772-1-0x0000000003090000-0x0000000003098000-memory.dmp

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