2135da1fbfb04479247c4268d2002059ca335b5384929093644e4896c44a37bb

Analysis

max time kernel
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/07/2026, 14:08

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General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample260729-rfpetshm9y
SHA256 2135da1fbfb04479247c4268d2002059ca335b5384929093644e4896c44a37bb
MD5 fa1d0a6bce748dd794a27ee6179bf948
SHA1 62d290cced859110aa3d507aa52e7ffb48ea29bf
SHA512 542792f9d0e96e816c52c3f39e09a52b86fd8b0f6d804ed35ceddf57edbf760b26082f52fc25eea5247a2c7953c78ca4fd6a97c3d4243cdcd78cd41555f16d8d
SSDEEP 98304:0zIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:0hfefPtHxcp9ym3nltDUJV
TLSH
T10746E101B3D6D7B5D07F06B8D87B4A655636BE048311C7AB5394B92F2E327C04EB236A
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/4216-2-0x0000000005D50000-0x0000000006042000-memory.dmp	revoked_cert_connectwise

Loads dropped DLL 11 IoCs

pid	Process
5040	MsiExec.exe
3288	rundll32.exe
3288	rundll32.exe
3288	rundll32.exe
3288	rundll32.exe
3288	rundll32.exe
3288	rundll32.exe
3288	rundll32.exe
3288	rundll32.exe
3288	rundll32.exe
1528	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)	\??\X:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\W:	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)	\??\A:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\D:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\Client.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\Client.Override.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\app.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (a6a13dabcb54de8b)\Client.Override.resources	msiexec.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\MSI256B.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI259B.tmp	msiexec.exe
File created	C:\Windows\Installer\e5a1f24.msi	msiexec.exe
File created	C:\Windows\Installer\{A6D39409-7647-3D60-5C33-30B1C33EDFA8}\DefaultIcon	msiexec.exe
File opened for modification	C:\Windows\Installer\{A6D39409-7647-3D60-5C33-30B1C33EDFA8}\DefaultIcon	msiexec.exe
File created	C:\Windows\SystemTemp\~DF0AD3054D4F1EBEDF.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DF4FBB14EE7D974157.TMP	msiexec.exe
File created	C:\Windows\Installer\e5a1f22.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\e5a1f22.msi	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File created	C:\Windows\Installer\SourceHash{A6D39409-7647-3D60-5C33-30B1C33EDFA8}	msiexec.exe
File created	C:\Windows\SystemTemp\~DF26416E8873FFB047.TMP	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\~DF88066395CAA34A26.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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.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 = 000000000400000067831fc6f5c7bf350000000000000000000000000000000000000000000000000000000000000000000000000000000000001071020000000000c012000000000000000000000000270101000088380167831fc60000000000001071020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d0830200000000006025c501000000000000000000000700010000e8410167831fc6000000000000d08302000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030a9c701000000000000050000000000000000000000070001000098d4e367831fc600000000000030a9c7010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030a9cc0100000000000005000000000000000000000007000100009854e667831fc600000000000030a9cc01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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 (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\PackageCode = "90493D6A746706D3C533031B3CE3FD8A"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\InstanceType = "0"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\SourceList\Media\1 = ";"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-a6a13dabcb54de8b\URL Protocol	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-a6a13dabcb54de8b\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (a6a13dabcb54de8b)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\a6a13dabcb54de8b\\"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\AdvertiseFlags = "388"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-a6a13dabcb54de8b\UseOriginalUrlEncoding = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-a6a13dabcb54de8b\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\5CA0D602A02070AA6A1AD3BABC45EDB8	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\SourceList	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\SourceList\Net	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-a6a13dabcb54de8b\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\90493D6A746706D3C533031B3CE3FD8A	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\Language = "1033"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\Assignment = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\SourceList\Media	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-a6a13dabcb54de8b	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-a6a13dabcb54de8b	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-a6a13dabcb54de8b\shell\open	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\ProductName = "ScreenConnect Client (a6a13dabcb54de8b)"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\Version = "419561476"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\AuthorizedLUAApp = "0"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\DeploymentFlags = "3"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\5CA0D602A02070AA6A1AD3BABC45EDB8\90493D6A746706D3C533031B3CE3FD8A	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-a6a13dabcb54de8b\shell\open\command	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\90493D6A746706D3C533031B3CE3FD8A\Full	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\ProductIcon = "C:\\Windows\\Installer\\{A6D39409-7647-3D60-5C33-30B1C33EDFA8}\\DefaultIcon"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\Clients = 3a0000000000	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\90493D6A746706D3C533031B3CE3FD8A\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\25.2.4.9229\\a6a13dabcb54de8b\\"	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4832	msiexec.exe
4832	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4216	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	2564	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2564	msiexec.exe
Token: SeSecurityPrivilege	4832	msiexec.exe
Token: SeCreateTokenPrivilege	2564	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2564	msiexec.exe
Token: SeLockMemoryPrivilege	2564	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2564	msiexec.exe
Token: SeMachineAccountPrivilege	2564	msiexec.exe
Token: SeTcbPrivilege	2564	msiexec.exe
Token: SeSecurityPrivilege	2564	msiexec.exe
Token: SeTakeOwnershipPrivilege	2564	msiexec.exe
Token: SeLoadDriverPrivilege	2564	msiexec.exe
Token: SeSystemProfilePrivilege	2564	msiexec.exe
Token: SeSystemtimePrivilege	2564	msiexec.exe
Token: SeProfSingleProcessPrivilege	2564	msiexec.exe
Token: SeIncBasePriorityPrivilege	2564	msiexec.exe
Token: SeCreatePagefilePrivilege	2564	msiexec.exe
Token: SeCreatePermanentPrivilege	2564	msiexec.exe
Token: SeBackupPrivilege	2564	msiexec.exe
Token: SeRestorePrivilege	2564	msiexec.exe
Token: SeShutdownPrivilege	2564	msiexec.exe
Token: SeDebugPrivilege	2564	msiexec.exe
Token: SeAuditPrivilege	2564	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2564	msiexec.exe
Token: SeChangeNotifyPrivilege	2564	msiexec.exe
Token: SeRemoteShutdownPrivilege	2564	msiexec.exe
Token: SeUndockPrivilege	2564	msiexec.exe
Token: SeSyncAgentPrivilege	2564	msiexec.exe
Token: SeEnableDelegationPrivilege	2564	msiexec.exe
Token: SeManageVolumePrivilege	2564	msiexec.exe
Token: SeImpersonatePrivilege	2564	msiexec.exe
Token: SeCreateGlobalPrivilege	2564	msiexec.exe
Token: SeCreateTokenPrivilege	2564	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2564	msiexec.exe
Token: SeLockMemoryPrivilege	2564	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2564	msiexec.exe
Token: SeMachineAccountPrivilege	2564	msiexec.exe
Token: SeTcbPrivilege	2564	msiexec.exe
Token: SeSecurityPrivilege	2564	msiexec.exe
Token: SeTakeOwnershipPrivilege	2564	msiexec.exe
Token: SeLoadDriverPrivilege	2564	msiexec.exe
Token: SeSystemProfilePrivilege	2564	msiexec.exe
Token: SeSystemtimePrivilege	2564	msiexec.exe
Token: SeProfSingleProcessPrivilege	2564	msiexec.exe
Token: SeIncBasePriorityPrivilege	2564	msiexec.exe
Token: SeCreatePagefilePrivilege	2564	msiexec.exe
Token: SeCreatePermanentPrivilege	2564	msiexec.exe
Token: SeBackupPrivilege	2564	msiexec.exe
Token: SeRestorePrivilege	2564	msiexec.exe
Token: SeShutdownPrivilege	2564	msiexec.exe
Token: SeDebugPrivilege	2564	msiexec.exe
Token: SeAuditPrivilege	2564	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2564	msiexec.exe
Token: SeChangeNotifyPrivilege	2564	msiexec.exe
Token: SeRemoteShutdownPrivilege	2564	msiexec.exe
Token: SeUndockPrivilege	2564	msiexec.exe
Token: SeSyncAgentPrivilege	2564	msiexec.exe
Token: SeEnableDelegationPrivilege	2564	msiexec.exe
Token: SeManageVolumePrivilege	2564	msiexec.exe
Token: SeImpersonatePrivilege	2564	msiexec.exe
Token: SeCreateGlobalPrivilege	2564	msiexec.exe
Token: SeCreateTokenPrivilege	2564	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2564	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2564	msiexec.exe
2564	msiexec.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2564	msiexec.exe
4832	msiexec.exe
5040	MsiExec.exe
1528	MsiExec.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 2564	4216	ScreenConnect.ClientSetup.exe	89
PID 4832 wrote to memory of 5040	4832	msiexec.exe	91
PID 5040 wrote to memory of 3288	5040	MsiExec.exe	92
PID 4832 wrote to memory of 4436	4832	msiexec.exe	97
PID 4832 wrote to memory of 1528	4832	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:4216
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\25.2.4.9229\a6a13dabcb54de8b\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:2564

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:4832
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 647F4BEC71596C7CC63CC560CA5CC9EA C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5040
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID17F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240767609 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3288
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:4436
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 18FE15042FE67B15AF329DE1014297F5
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1528

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:5432

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

e5a1f23.rbs

Path C:\Config.Msi\e5a1f23.rbs
Size 10KB
SHA256 5f00dd90152fb219bcac92ebfc21a9b726b6b3d83efb5fd91d598566827ad250
MD5 a118679e7f731c046ee8fc8c2cf766bc
SHA1 c31198435f97306141dc747c1444e6838e8380cb
SHA512 e4fb3f64cbb45f07345f40aab9aaca40b0f1e4726e6d97344d517aaef500b14d167f1a2621b87d8999535ff2831655192ffb523f71f85ca50c866e48e523c8f7
SSDEEP 192:x+I1L9A+iG+w0wMrMy/DIRXLcc6R79D92CZWoUhIWoUhj2K68lGMapSGk:x+I1L9A+iG+w0wMrMy/DIRXLx6R79D9c
TLSH
T1492234423244A1F2F61B1B71C7A72B293732ABD95721234F48CF46784D627CA677C1EA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSID17F.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSID17F.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\MSID17F.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\MSID17F.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\MSID17F.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\MSID17F.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\a6a13dabcb54de8b\ScreenConnect.ClientSetup.msi
Size 12.9MB
SHA256 e3c3cdee9cae19f219b6f31937dc562c414c530a0e2c0fe5ad64fa0483d8dae8
MD5 eb604a256768e6ffc852f48409f4386a
SHA1 5b955d52a26042df125709916ead622b16b99d37
SHA512 d7bb71dca825baa7081d329c65b73be2fc7e53f02408b9b22b7b000aefdcf35932dd32e7add330a2dee3bd4839018799121786fa7b898e398130cee1e0b64309
SSDEEP 196608:RHxcp9ym3nltDUJV0Hxcp9ym3xHxcp9ym3AHxcp9ym3GHxcp9ym31Hxcp9ym3XHm:DGplp/GpjGpuGpUGpnGpBGpt
TLSH
T1B0D623116BF8D368E0B22AF5E877AC60A5377F115D22D12E1224791F2C75A8089E377F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSI259B.tmp

Path C:\Windows\Installer\MSI259B.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 1a10b7230948a8a1f4017a52303a4809dff4f1f6c14b95f70d7773f347de6ecf
MD5 2574a078c294e45a72bf5942d37dcaad
SHA1 dbdfaea99a5f3cda350d602b75d0c1e0f303fd57
SHA512 4b91fe8fd88d4682a04cb7eb8d8fed3cdadaf7e542a3121a73654c7f91444986c1c9d7f116f627fff923dc30ea0cc506cb6743660139b068cc6395c4dbb771c2
SSDEEP 24576:WFo3DMP+doO/vvTL/SwyiCFAvre45LFB0vkwN/8qUn8aZ1jS8Ih2ibYDGuo:pHE
TLSH
T10A57B42436F92100EBF7AE3CA8F06A274D397D57AC16DE8D45511B4D0822F71E872F6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{5c754d3e-1c69-4edd-88a4-c04322b9ebb0}_OnDiskSnapshotProp

Path \??\Volume{c61f8367-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{5c754d3e-1c69-4edd-88a4-c04322b9ebb0}_OnDiskSnapshotProp
Size 6KB
SHA256 6b6aff1d7ffc3a94d632f8de076cc4e40aa23d99d703e37045fc3ee2ac09e05c
MD5 7e97803f40cb9de7f6d648c4dfc1a536
SHA1 029e389cd9caae269a46904c80a021a941ffa2f6
SHA512 7d2f10584932614d4e7995156e03c607935b143aa09da938556c3857566ce3d5d2c6026e633d4f839ccfd56651df9786c3c29ac7d1f273dcb84c7ca27618aaee
SSDEEP 96:FM2eAvlslvc6DD84LTHzbOHXOHBlBRQn8Sc9XE56tOSVQpu:C2+Zb++uVm
TLSH
T16BD178181AF54711E2B3AB3129F18557A837B911FF33CB8E0198638E6631A10F975F6B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3288-40-0x0000000005700000-0x000000000578C000-memory.dmp

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memory/3288-32-0x0000000005630000-0x000000000565E000-memory.dmp

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memory/3288-44-0x0000000005940000-0x0000000005AEC000-memory.dmp

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memory/3288-36-0x0000000005660000-0x000000000566A000-memory.dmp

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memory/4216-5-0x0000000001CA0000-0x0000000001CC2000-memory.dmp

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memory/4216-12-0x0000000074430000-0x0000000074BEC000-memory.dmp

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memory/4216-4-0x0000000005AB0000-0x0000000005B3C000-memory.dmp

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memory/4216-9-0x0000000006600000-0x0000000006BBA000-memory.dmp

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memory/4216-3-0x0000000074430000-0x0000000074BEC000-memory.dmp

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memory/4216-8-0x0000000074430000-0x0000000074BEC000-memory.dmp

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memory/4216-2-0x0000000005D50000-0x0000000006042000-memory.dmp

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memory/4216-0-0x0000000074442000-0x0000000074443000-memory.dmp

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memory/4216-10-0x0000000074430000-0x0000000074BEC000-memory.dmp

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memory/4216-1-0x0000000001BB0000-0x0000000001BB8000-memory.dmp

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memory/4216-6-0x0000000074430000-0x0000000074BEC000-memory.dmp

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memory/4216-7-0x0000000005B50000-0x0000000005CFC000-memory.dmp

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