de03e28b257b0010830be884f5a13952031bed2cdda2f211ac5326050d7634d0

Analysis

max time kernel
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
07/09/2026, 12:31

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample260907-pp7xesxajb
SHA256 de03e28b257b0010830be884f5a13952031bed2cdda2f211ac5326050d7634d0
MD5 f2dc82f79345db0581fbb29ce7501c63
SHA1 3517f004f71f7c47de6b81b670d5b93841d55d08
SHA512 6a07d5a3ec5f098db171d1d5ab6c92fa8105e0c467ea24f788b805578f3add3ac9fc5ddb0e9261a43495ea6e15d35ee59774d8952f44dc6d925215904c10a877
SSDEEP 98304:hzIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:hhfefPtHxcp9ym3nltDUJV
TLSH
T1F446E101B3D695B6D1BF1638D87A52696734BC049316CBBF5394BD392E32BC04E323A6
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/5076-2-0x0000000005CA0000-0x0000000005F92000-memory.dmp	revoked_cert_connectwise

Loads dropped DLL 11 IoCs

pid	Process
5980	MsiExec.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
4804	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)	\??\B:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\X:	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)	\??\P:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe

Drops file in Program Files directory 16 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\Client.Override.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4e7e5257628fdd8d)\Client.resources	msiexec.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC356.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\{DFF6CC3C-B1DB-B596-DD8C-EFF8E0282EDA}\DefaultIcon	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File created	C:\Windows\SystemTemp\~DF0073F58A7A16E069.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DF78D66C04CB26821E.TMP	msiexec.exe
File created	C:\Windows\Installer\{DFF6CC3C-B1DB-B596-DD8C-EFF8E0282EDA}\DefaultIcon	msiexec.exe
File opened for modification	C:\Windows\Installer\e59bc41.msi	msiexec.exe
File created	C:\Windows\Installer\e59bc43.msi	msiexec.exe
File created	C:\Windows\SystemTemp\~DF9665F17D0937C55A.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DF44FF522BA63F737E.TMP	msiexec.exe
File created	C:\Windows\Installer\e59bc41.msi	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File created	C:\Windows\Installer\SourceHash{DFF6CC3C-B1DB-B596-DD8C-EFF8E0282EDA}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC376.tmp	msiexec.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ScreenConnect.ClientSetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MsiExec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MsiExec.exe

Checks SCSI registry key(s) 3 TTPs 5 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
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
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

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-4e7e5257628fdd8d	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\Full	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\4A9A85A682084A34E4E7257526F8DDD8\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\SourceList\Net	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\4e7e5257628fdd8d\\"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4e7e5257628fdd8d\UseOriginalUrlEncoding = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4e7e5257628fdd8d\shell\open\command	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\Language = "1033"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\Assignment = "1"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\AuthorizedLUAApp = "0"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\DeploymentFlags = "3"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4e7e5257628fdd8d\URL Protocol	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\ProductIcon = "C:\\Windows\\Installer\\{DFF6CC3C-B1DB-B596-DD8C-EFF8E0282EDA}\\DefaultIcon"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\4A9A85A682084A34E4E7257526F8DDD8	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\Clients = 3a0000000000	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-4e7e5257628fdd8d\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4e7e5257628fdd8d\shell\open	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\ProductName = "ScreenConnect Client (4e7e5257628fdd8d)"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\PackageCode = "C3CC6FFDBD1B695BDDC8FE8F0E82E2AD"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\AdvertiseFlags = "388"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\InstanceType = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\SourceList\Media\1 = ";"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4e7e5257628fdd8d\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (4e7e5257628fdd8d)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\Version = "419561476"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4e7e5257628fdd8d	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4e7e5257628fdd8d\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\SourceList	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\SourceList\Media	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\C3CC6FFDBD1B695BDDC8FE8F0E82E2AD\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\4e7e5257628fdd8d\\"	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2712	msiexec.exe
2712	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5076	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	5944	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5944	msiexec.exe
Token: SeSecurityPrivilege	2712	msiexec.exe
Token: SeCreateTokenPrivilege	5944	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5944	msiexec.exe
Token: SeLockMemoryPrivilege	5944	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5944	msiexec.exe
Token: SeMachineAccountPrivilege	5944	msiexec.exe
Token: SeTcbPrivilege	5944	msiexec.exe
Token: SeSecurityPrivilege	5944	msiexec.exe
Token: SeTakeOwnershipPrivilege	5944	msiexec.exe
Token: SeLoadDriverPrivilege	5944	msiexec.exe
Token: SeSystemProfilePrivilege	5944	msiexec.exe
Token: SeSystemtimePrivilege	5944	msiexec.exe
Token: SeProfSingleProcessPrivilege	5944	msiexec.exe
Token: SeIncBasePriorityPrivilege	5944	msiexec.exe
Token: SeCreatePagefilePrivilege	5944	msiexec.exe
Token: SeCreatePermanentPrivilege	5944	msiexec.exe
Token: SeBackupPrivilege	5944	msiexec.exe
Token: SeRestorePrivilege	5944	msiexec.exe
Token: SeShutdownPrivilege	5944	msiexec.exe
Token: SeDebugPrivilege	5944	msiexec.exe
Token: SeAuditPrivilege	5944	msiexec.exe
Token: SeSystemEnvironmentPrivilege	5944	msiexec.exe
Token: SeChangeNotifyPrivilege	5944	msiexec.exe
Token: SeRemoteShutdownPrivilege	5944	msiexec.exe
Token: SeUndockPrivilege	5944	msiexec.exe
Token: SeSyncAgentPrivilege	5944	msiexec.exe
Token: SeEnableDelegationPrivilege	5944	msiexec.exe
Token: SeManageVolumePrivilege	5944	msiexec.exe
Token: SeImpersonatePrivilege	5944	msiexec.exe
Token: SeCreateGlobalPrivilege	5944	msiexec.exe
Token: SeCreateTokenPrivilege	5944	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5944	msiexec.exe
Token: SeLockMemoryPrivilege	5944	msiexec.exe
Token: SeIncreaseQuotaPrivilege	5944	msiexec.exe
Token: SeMachineAccountPrivilege	5944	msiexec.exe
Token: SeTcbPrivilege	5944	msiexec.exe
Token: SeSecurityPrivilege	5944	msiexec.exe
Token: SeTakeOwnershipPrivilege	5944	msiexec.exe
Token: SeLoadDriverPrivilege	5944	msiexec.exe
Token: SeSystemProfilePrivilege	5944	msiexec.exe
Token: SeSystemtimePrivilege	5944	msiexec.exe
Token: SeProfSingleProcessPrivilege	5944	msiexec.exe
Token: SeIncBasePriorityPrivilege	5944	msiexec.exe
Token: SeCreatePagefilePrivilege	5944	msiexec.exe
Token: SeCreatePermanentPrivilege	5944	msiexec.exe
Token: SeBackupPrivilege	5944	msiexec.exe
Token: SeRestorePrivilege	5944	msiexec.exe
Token: SeShutdownPrivilege	5944	msiexec.exe
Token: SeDebugPrivilege	5944	msiexec.exe
Token: SeAuditPrivilege	5944	msiexec.exe
Token: SeSystemEnvironmentPrivilege	5944	msiexec.exe
Token: SeChangeNotifyPrivilege	5944	msiexec.exe
Token: SeRemoteShutdownPrivilege	5944	msiexec.exe
Token: SeUndockPrivilege	5944	msiexec.exe
Token: SeSyncAgentPrivilege	5944	msiexec.exe
Token: SeEnableDelegationPrivilege	5944	msiexec.exe
Token: SeManageVolumePrivilege	5944	msiexec.exe
Token: SeImpersonatePrivilege	5944	msiexec.exe
Token: SeCreateGlobalPrivilege	5944	msiexec.exe
Token: SeCreateTokenPrivilege	5944	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	5944	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5944	msiexec.exe
5944	msiexec.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5944	msiexec.exe
2712	msiexec.exe
5980	MsiExec.exe
4804	MsiExec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 5944	5076	ScreenConnect.ClientSetup.exe	89
PID 2712 wrote to memory of 5980	2712	msiexec.exe	91
PID 5980 wrote to memory of 1596	5980	MsiExec.exe	92
PID 2712 wrote to memory of 3048	2712	msiexec.exe	97
PID 2712 wrote to memory of 4804	2712	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:5076
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\4e7e5257628fdd8d\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:5944

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:2712
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding EF0888561217FD251E338EF084F9C2B0 C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5980
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6150.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240738968 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1596
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:3048
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 02777123677EB9C7E2B11EDEB9530DB9
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4804

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:3668

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

e59bc42.rbs

Path C:\Config.Msi\e59bc42.rbs
Size 10KB
SHA256 f92fb5882ed5a435dd67d497d55b6dd6d429d246e68a899c8c2dbc7d453fde99
MD5 46e8c8d8f8e735a5157089bc7d669063
SHA1 a0da6be7e027c7ec735e51b151375a1b3221f75e
SHA512 dffead2b3113b7f237f0419008debf4ba9631b88d6e453c7b45369d39d760fd8c5f48847ac250853db5a8406020f687d656003a826b778abedbc448ad451e253
SSDEEP 192:BrI+GbGXqtqDinGCEWrhIMlrhw3LcJ3MpW:BrI+GbGXqtqD+prrlrIIJ1
TLSH
T1C22264423A07E2E8E5572F31CB2326143F36BBA58311624B59CC907A5DE738947FD2DA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI6150.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI6150.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\MSI6150.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\MSI6150.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\MSI6150.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\MSI6150.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\4e7e5257628fdd8d\ScreenConnect.ClientSetup.msi
Size 11.1MB
SHA256 0ca251a6f00f56a711f643a3f7d73f809ebfd28a6a105ab7baab10bd40aba1aa
MD5 349a62e2291b26bec9040eb7ff90f3ee
SHA1 8c2479329e376529a01cf2399f2b51d0b389ed9a
SHA512 36a5fb2297f3e59a1830f2155a3380845f55b7d7d35f636aaeba8b2eb42795a11971780d1a1c1db2143ac4226e0e557d7173f4d36079c202b07ff718a12b7c15
SSDEEP 196608:NHxcp9ym3nltDUJVnHxcp9ym3vHxcp9ym3QHxcp9ym3FHxcp9ym3mHxcp9ym3:/GplpIGp5Gp+Gp3Gp0Gp
TLSH
T134C623116BF89278F1F22A39E876A0B1A5367D119E23D12E2324791E2C75EC0C973777
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSIC376.tmp

Path C:\Windows\Installer\MSIC376.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 51e5e9b46fdeb89849a393a0e542ed0916a19a2c9b33fd9044dbfdef08a1c2de
MD5 32b19ac062b2baf2c061d5bd744e1a78
SHA1 ef9cd564e495e96b1ae3931602d22054320c7162
SHA512 0d8deea002a6a333927a374d110e537053074f7c927be7a6e7e9b64368436a577d44e406cddc4114a53c6e32ebd93e0af62c22d11a3354f99a0991dafa9cfca4
SSDEEP 24576:CFo3DMP+doO/vvTL/yAjDilQP7eJY7Eg0+1xNudb1WtqJESTsIRmD6pin+X:pHM
TLSH
T1F357B31436F92200E7B79E3DB8F06A234D397D5BAC15DE8D45511B8E0822F71E872F6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{603da45c-d86a-4ad5-a1d1-afc16345f9a4}_OnDiskSnapshotProp

Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{603da45c-d86a-4ad5-a1d1-afc16345f9a4}_OnDiskSnapshotProp
Size 6KB
SHA256 300e037fc60576f68becd871b97c3da618c974f14f05ae2885eccad06aeb4923
MD5 e25318b120a9723db0fa52e16dd2d32d
SHA1 612d8c1c1b2266c1369a04f22a35224b5a176e2b
SHA512 5ed43cc7f77f2f28adf6f579e5b6a24d898031e21e7e68b0e6d86bf57fec3349dc17f690b7bcf184afce7cd1e082de101a150e4588fcc974adaa31dd0fa224c9
SSDEEP 96:FaIzDbwvc6DD84LTHzbOHXOHBlBRQn8Sc9XE56tOSVQpu:IIgb++uVm
TLSH
T115D177085AF54311E2B3AB7228F14557A877B911EF33CB8E0198238E6631A10F975F6F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1596-32-0x0000000006090000-0x00000000060BE000-memory.dmp

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memory/1596-44-0x00000000063B0000-0x000000000655C000-memory.dmp

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memory/1596-40-0x0000000006170000-0x00000000061FC000-memory.dmp

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memory/1596-36-0x00000000060D0000-0x00000000060DA000-memory.dmp

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memory/5076-6-0x0000000005930000-0x0000000005952000-memory.dmp

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memory/5076-13-0x0000000074AE0000-0x000000007529C000-memory.dmp

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memory/5076-10-0x0000000074AE0000-0x000000007529C000-memory.dmp

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memory/5076-9-0x0000000006550000-0x0000000006B0A000-memory.dmp

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memory/5076-8-0x0000000074AE0000-0x000000007529C000-memory.dmp

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memory/5076-7-0x0000000005A30000-0x0000000005BDC000-memory.dmp

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memory/5076-0-0x0000000074AF2000-0x0000000074AF3000-memory.dmp

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memory/5076-5-0x0000000074AE0000-0x000000007529C000-memory.dmp

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memory/5076-4-0x00000000059A0000-0x0000000005A2C000-memory.dmp

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memory/5076-3-0x0000000074AE0000-0x000000007529C000-memory.dmp

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memory/5076-2-0x0000000005CA0000-0x0000000005F92000-memory.dmp

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memory/5076-1-0x0000000003390000-0x0000000003398000-memory.dmp

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