d239568e87157f36104fe99f60c5c72e4257fb672c2c469629573837feee2143

Analysis

max time kernel
148s
max time network
127s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
13/11/2026, 00:23

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General

Target
ScreenConnect.ClientSetup.msi
Size 9.8MB
Sample261113-apylesew4k
SHA256 d239568e87157f36104fe99f60c5c72e4257fb672c2c469629573837feee2143
MD5 1b43e328e36063e58a79941967cadff2
SHA1 d6284f91d925abac2fbafd9921e13a700e606fba
SHA512 3077f86e48ca70ec14fe0ca92fc2731f17292c6b76bd2680e918e664db048f39e038b30e815c5a4ebd1d6bbaf3dc6e9040b3cf64599ba58445d6472d474fe988
SSDEEP 196608:5Frg904SOL2Y5V1vFrg904SOLmFrg904SOLeFrg904SOL:5Fri04SOLJX1vFri04SOLmFri04SOLeg
TLSH
T18BA6237262F8D125E2F34639FE7992E1583A7D51ED12C01F5B28381EA271E808A77377
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

backdoor discovery persistence privilege_escalation ransomware rat

Malware Config

Signatures

Badlisted process makes network request 2 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	1128	msiexec.exe
3	1220	rundll32.exe

Sets service image path in registry 3 TTPs 1 IoCs

This determines the executable launched when a service starts. It can be used to establish persistence.

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\ScreenConnect Client (225cb0718121ff83)\ImagePath = "\"C:\\Program Files (x86)\\ScreenConnect Client (225cb0718121ff83)\\ScreenConnect.ClientService.exe\" \"?e=Access&y=Guest&h=instance-abb4d1-relay.screenconnect.com&p=443&s=a0353651-e513-4f50-a3b1-324e14aa3ffa&k=BgIAAACkAABSU0ExAAgAAAEAAQDtxvKElQJmp7YcV1qyAfIWISD5aoi4npkKOBKTyii7iFVbMJSZLYTpR9ebQcO1vvbaDMl23dYvasgKnI8Z6rEvnm0b%2fp9E6%2bgzFSFIxbC%2bwqM2WUwI5v2oJzHkP1jso9iYYhOo9etLCDNqm36zwE5pZEQid4eFwiOqXqMifeMifEERpko8zdcTw%2br839eus2z%2bO5zgcJzkrRJlb2e656KKJjLhiwB%2bWVQnDz0KDPWCISrJT7Nh7ZmbBKxMPJp4SCzkXh15PbuxpPgO4P3IIBMysNpkntSsikw%2bMdPj%2bAgFFHNp1AOqzdjUfq6sI5i6MG3eEhn7OZ8D%2fw8wzraomwji&v=AQAAANCMnd8BFdERjHoAwE%2fCl%2bsBAAAAusb06ddXR0WYG9tN4b3RrwAAAAACAAAAAAAQZgAAAAEAACAAAADsM5dQdQ62OmCJ5qDwlTw31yRzcwqed%2byAanQQpheFcAAAAAAOgAAAAAIAACAAAAA7AMTuHXpMOI1bgam%2fjybbgzbrWqNR0CG1Mn%2bW%2fH0em6AEAADV%2bgZxNrrKQOgAkvNNagclwCyCIQV556G8TXjhUaiILGGBCz4%2f7S2k53AcBUY9fjfy%2b20gCtGCB4ujHZ16xVM6pEl6o3Nqv5Psj7%2f0b3O8lNyLCbiQ3LBXD5VOYIX99LkoORNsehuAThPqifWGlUE%2fH0a9wwISowfbDZ5SQ7Y2wSzC4XeE78qluWoqfSnWfI118np0QSXmnEI7V%2b5etid8Ry4HYS5%2bnN%2f8U94kdsXrHk9ReFAOia77GbuJ86JDw%2fzexPE97PZdQvSYENKcBYy0GsE2pgYxTOQ0inQXUlnCjU1TymJzttA6GxEXm8swsjuKG4uwInU%2f417eEOl8XRBTI6TusTgEeM%2fwF2kKi34YLuaJd396AjvEbYcBTvHaSKrfvhty3IwpWI0HydxGHEO8ftsNhDPJrwmAPbOvbpXMjjsLiJ5NhynD7rKSpSq2ToInxmIZde1U1xp8zle%2bru7P1%2fz%2bvUPvZqES3T0n2xtl8JXJhDp1UVwDypqwVGzomtVerXvFb0gTNALzPMzdUB%2bFVLP2h10gFR94ZaHHqdqHfwD9Up9h1mAfMUT74gxI172RYG%2blYc3wz%2bJG%2fi2VOFagt3p1V189Eh%2fK0yPJqAhH48%2bjJjxee1eoKfaEE%2f3oDAqwgd7mj%2bczu1VYdhqZJEzdHaEoq4RukRKe%2fw1oL4UQwq8oWhb4GRH7UzsRfR9nP9GberZXaLPnv1erDvaOGxq9ta6BKb0h7O2ukkpG9BpnICYeOrVUu1NDJ1CdibGkOWXHTw4Nrwzxs%2fvQMS2SC8TO8muVkVh8szMM8Lyr2qOnO1oMsTk8SpPawhd60OQH%2bAwG6CjKoIKN0ncQ3COnUnATlc4ww8L2orBwJW%2fRqS5RaE0qRu2WKMO7q5Ap8k%2bwACSRT4nNtuzKoiDL%2bsqdz%2fpcgj6AbYjuSavPWMreLuKYUhFoL6rEb8vACUKsp7%2f%2bJ3GQzKH0O9bMEtqhRwxqJ3zofjZ68WXmBS0gsnLVPZ0Ih85pS9SCb1Gc2S6bn12NLtAq7SmYjJE3ISEqG77ya0UcvFGnomUUTo2uk2MEP9WXszWhUvV4j40gDX%2bE%2ba0qzEPyx1E5unzI%2fyZSuypKXCViHgU0vOH85eAR9jPOkHAwEJVOe9IT1GoQPhB3xi2OZtllcoEQD028PkaxXZ9fGh8Dif19MGmXH62gEJozLCjgMT8qiEsexgGH29FA2YLnJGZpA9Zpm0XRSEnSog%2fGtD4uj4JGubi8zwnukvOhEun4uKqX4A5RgvDmESoCM6CrUvHC6OXMO5AquifCCbJYYK5ygZ6WW25zSsYAH4PwW%2bymMhGbtLmmPJuqhQ78CWWmGDvp06sK9f1a8Fla9cortXJ8H8XR%2fpSuo6Jj8sM8lsyseDpE%2bbGj4R4NF7L6eVL23FtS7KXe566kzRgHhehlN0%2bzGhLmjvvfbFxeca%2fDrIJ3h0IQczOS8boR3PL1ASs8oQJDg9AR59n9ACSP0zLnXXmuVJbU%2bzZg4s5lrmfneCN%2fWXh%2bXB%2bmqk%2fq8dO6oSo4PYKyuH9%2fDNfUsEQybu8Eb1o%2b6beyR%2f1IHvem4r90pZAt5kAAAADmJCklkwZiGuHUj2D7AAzCL8VeqCEROwHjcgJcz9cNFDrKtmK2zptpQK%2bQXUKr2jnYWpOrGPFBndFI2lqn%2f2R6&c=po&c=co&c=yo&c=y&c=&c=&c=&c=\""	ScreenConnect.ClientService.exe

ConnectWise ScreenConnect remote access tool
ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.
backdoor rat

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

Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

Suspicious Windows Authentication Registry Modification.

persistence privilege_escalation

Authentication Package

T1547.002

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Lsa\Authentication Packages = 6d007300760031005f003000000043003a005c00500072006f006700720061006d002000460069006c00650073002000280078003800360029005c00530063007200650065006e0043006f006e006e00650063007400200043006c00690065006e00740020002800320032003500630062003000370031003800310032003100660066003800330029005c00530063007200650065006e0043006f006e006e006500630074002e00570069006e0064006f0077007300410075007400680065006e007400690063006100740069006f006e005000610063006b006100670065002e0064006c006c0000000000	msiexec.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\22ffdvwz.tmp	ScreenConnect.ClientService.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\22ffdvwz.newcfg	ScreenConnect.ClientService.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\i0isbnp5.newcfg	ScreenConnect.ClientService.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\user.config	ScreenConnect.ClientService.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\i0isbnp5.newcfg	ScreenConnect.ClientService.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\rmtolvn1.tmp	ScreenConnect.ClientService.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\rmtolvn1.newcfg	ScreenConnect.ClientService.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\i0isbnp5.tmp	ScreenConnect.ClientService.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\rmtolvn1.newcfg	ScreenConnect.ClientService.exe

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Drops file in Program Files directory 16 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsCredentialProvider.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsAuthenticationPackage.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\Client.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\Client.en-US.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe

Drops file in Windows directory 17 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\MSI73C1.tmp	msiexec.exe
File created	C:\Windows\Installer\wix{28200FFC-6FCC-2688-ED46-75B015724A0F}.SchedServiceConfig.rmi	MsiExec.exe
File opened for modification	C:\Windows\Installer\{28200FFC-6FCC-2688-ED46-75B015724A0F}\DefaultIcon	msiexec.exe
File created	C:\Windows\SystemTemp\~DFCAFD5AEB09091BBD.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 opened for modification	C:\Windows\Installer\MSI70C1.tmp	msiexec.exe
File created	C:\Windows\Installer\{28200FFC-6FCC-2688-ED46-75B015724A0F}\DefaultIcon	msiexec.exe
File created	C:\Windows\Installer\e596b62.msi	msiexec.exe
File created	C:\Windows\SystemTemp\~DF40421F9DB2F5994C.TMP	msiexec.exe
File created	C:\Windows\Installer\SourceHash{28200FFC-6FCC-2688-ED46-75B015724A0F}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI7130.tmp	msiexec.exe
File created	C:\Windows\Installer\e596b64.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\e596b62.msi	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File created	C:\Windows\SystemTemp\~DF505031FDAF6C6EBB.TMP	msiexec.exe
File created	C:\Windows\SystemTemp\~DFBC91CC214C87E8FC.TMP	msiexec.exe

Executes dropped EXE 4 IoCs

pid	Process
5528	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
5228	ScreenConnect.WindowsClient.exe
5924	ScreenConnect.WindowsClient.exe

Loads dropped DLL 50 IoCs

pid	Process
5940	MsiExec.exe
2076	rundll32.exe
2076	rundll32.exe
2076	rundll32.exe
2076	rundll32.exe
2076	rundll32.exe
2076	rundll32.exe
2076	rundll32.exe
2076	rundll32.exe
2076	rundll32.exe
5940	MsiExec.exe
1220	rundll32.exe
1220	rundll32.exe
1220	rundll32.exe
1220	rundll32.exe
1220	rundll32.exe
1220	rundll32.exe
1220	rundll32.exe
1220	rundll32.exe
1220	rundll32.exe
5940	MsiExec.exe
4184	rundll32.exe
4184	rundll32.exe
4184	rundll32.exe
4184	rundll32.exe
4184	rundll32.exe
4184	rundll32.exe
4184	rundll32.exe
4184	rundll32.exe
4184	rundll32.exe
5496	MsiExec.exe
944	MsiExec.exe
5528	ScreenConnect.ClientService.exe
5528	ScreenConnect.ClientService.exe
5528	ScreenConnect.ClientService.exe
5528	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
5528	ScreenConnect.ClientService.exe
5528	ScreenConnect.ClientService.exe
5528	ScreenConnect.ClientService.exe
5528	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

pid	Process
1128	msiexec.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2816	5528	WerFault.exe	105

Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	ScreenConnect.ClientService.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	ScreenConnect.ClientService.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	ScreenConnect.WindowsClient.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	ScreenConnect.WindowsClient.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	ScreenConnect.ClientService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ScreenConnect.ClientService.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	rundll32.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 = 000000000400000072eafa9cea60e45e0000000000000000000000000000000000000000000000000000000000000000000000000000000000001071020000000000c012000000000000000000000000270101000088380172eafa9c0000000000001071020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d0830200000000006025c501000000000000000000000700010000e8410172eafa9c000000000000d08302000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030a9c701000000000000050000000000000000000000070001000098d4e372eafa9c00000000000030a9c7010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030a9cc0100000000000005000000000000000000000007000100009854e672eafa9c00000000000030a9cc01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	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

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ScreenConnect.WindowsClient.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ScreenConnect.WindowsClient.exe

Modifies data under HKEY_USERS 13 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	ScreenConnect.WindowsClient.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	ScreenConnect.WindowsClient.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	ScreenConnect.ClientService.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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	ScreenConnect.WindowsClient.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	ScreenConnect.WindowsClient.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	ScreenConnect.WindowsClient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	ScreenConnect.ClientService.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	ScreenConnect.ClientService.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	ScreenConnect.ClientService.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	ScreenConnect.ClientService.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\CLASSES\LOCAL SETTINGS\MUICACHE\27\52C64B7E	msiexec.exe

Modifies registry class 37 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\CFF00282CCF68862DE64570B5127A4F0	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\CFF00282CCF68862DE64570B5127A4F0\Full	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\PackageCode = "CFF00282CCF68862DE64570B5127A4F0"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\3A5299AB2C11FBE722C50B171812FF38	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\SourceList	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\Assignment = "1"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\ProductIcon = "C:\\Windows\\Installer\\{28200FFC-6FCC-2688-ED46-75B015724A0F}\\DefaultIcon"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\AuthorizedLUAApp = "0"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-225cb0718121ff83\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-225cb0718121ff83\shell\open	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-225cb0718121ff83\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\SourceList\Net	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\SourceList\Media\1 = ";"	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\Clients = 3a0000000000	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\CLSID\{6FF59A85-BC37-4CD4-27B5-39165F25DAAB}\InprocServer32	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\Version = "436666374"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\3A5299AB2C11FBE722C50B171812FF38\CFF00282CCF68862DE64570B5127A4F0	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6FF59A85-BC37-4CD4-27B5-39165F25DAAB}\InprocServer32\ = "C:\\Program Files (x86)\\ScreenConnect Client (225cb0718121ff83)\\ScreenConnect.WindowsCredentialProvider.dll"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\InstanceType = "0"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\AdvertiseFlags = "388"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-225cb0718121ff83\URL Protocol	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-225cb0718121ff83\shell\open\command	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-225cb0718121ff83	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\Language = "1033"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-225cb0718121ff83	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-225cb0718121ff83\UseOriginalUrlEncoding = "1"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-225cb0718121ff83\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (225cb0718121ff83)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\CLSID\{6FF59A85-BC37-4CD4-27B5-39165F25DAAB}	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6FF59A85-BC37-4CD4-27B5-39165F25DAAB}\ = "ScreenConnect Client (225cb0718121ff83) Credential Provider"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\ProductName = "ScreenConnect Client (225cb0718121ff83)"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\DeploymentFlags = "3"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6FF59A85-BC37-4CD4-27B5-39165F25DAAB}\InprocServer32\ThreadingModel = "Apartment"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\CFF00282CCF68862DE64570B5127A4F0\SourceList\Media	msiexec.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4208	msiexec.exe
4208	msiexec.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe
4592	ScreenConnect.ClientService.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1128	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1128	msiexec.exe
Token: SeSecurityPrivilege	4208	msiexec.exe
Token: SeCreateTokenPrivilege	1128	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1128	msiexec.exe
Token: SeLockMemoryPrivilege	1128	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1128	msiexec.exe
Token: SeMachineAccountPrivilege	1128	msiexec.exe
Token: SeTcbPrivilege	1128	msiexec.exe
Token: SeSecurityPrivilege	1128	msiexec.exe
Token: SeTakeOwnershipPrivilege	1128	msiexec.exe
Token: SeLoadDriverPrivilege	1128	msiexec.exe
Token: SeSystemProfilePrivilege	1128	msiexec.exe
Token: SeSystemtimePrivilege	1128	msiexec.exe
Token: SeProfSingleProcessPrivilege	1128	msiexec.exe
Token: SeIncBasePriorityPrivilege	1128	msiexec.exe
Token: SeCreatePagefilePrivilege	1128	msiexec.exe
Token: SeCreatePermanentPrivilege	1128	msiexec.exe
Token: SeBackupPrivilege	1128	msiexec.exe
Token: SeRestorePrivilege	1128	msiexec.exe
Token: SeShutdownPrivilege	1128	msiexec.exe
Token: SeDebugPrivilege	1128	msiexec.exe
Token: SeAuditPrivilege	1128	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1128	msiexec.exe
Token: SeChangeNotifyPrivilege	1128	msiexec.exe
Token: SeRemoteShutdownPrivilege	1128	msiexec.exe
Token: SeUndockPrivilege	1128	msiexec.exe
Token: SeSyncAgentPrivilege	1128	msiexec.exe
Token: SeEnableDelegationPrivilege	1128	msiexec.exe
Token: SeManageVolumePrivilege	1128	msiexec.exe
Token: SeImpersonatePrivilege	1128	msiexec.exe
Token: SeCreateGlobalPrivilege	1128	msiexec.exe
Token: SeCreateTokenPrivilege	1128	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1128	msiexec.exe
Token: SeLockMemoryPrivilege	1128	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1128	msiexec.exe
Token: SeMachineAccountPrivilege	1128	msiexec.exe
Token: SeTcbPrivilege	1128	msiexec.exe
Token: SeSecurityPrivilege	1128	msiexec.exe
Token: SeTakeOwnershipPrivilege	1128	msiexec.exe
Token: SeLoadDriverPrivilege	1128	msiexec.exe
Token: SeSystemProfilePrivilege	1128	msiexec.exe
Token: SeSystemtimePrivilege	1128	msiexec.exe
Token: SeProfSingleProcessPrivilege	1128	msiexec.exe
Token: SeIncBasePriorityPrivilege	1128	msiexec.exe
Token: SeCreatePagefilePrivilege	1128	msiexec.exe
Token: SeCreatePermanentPrivilege	1128	msiexec.exe
Token: SeBackupPrivilege	1128	msiexec.exe
Token: SeRestorePrivilege	1128	msiexec.exe
Token: SeShutdownPrivilege	1128	msiexec.exe
Token: SeDebugPrivilege	1128	msiexec.exe
Token: SeAuditPrivilege	1128	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1128	msiexec.exe
Token: SeChangeNotifyPrivilege	1128	msiexec.exe
Token: SeRemoteShutdownPrivilege	1128	msiexec.exe
Token: SeUndockPrivilege	1128	msiexec.exe
Token: SeSyncAgentPrivilege	1128	msiexec.exe
Token: SeEnableDelegationPrivilege	1128	msiexec.exe
Token: SeManageVolumePrivilege	1128	msiexec.exe
Token: SeImpersonatePrivilege	1128	msiexec.exe
Token: SeCreateGlobalPrivilege	1128	msiexec.exe
Token: SeCreateTokenPrivilege	1128	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1128	msiexec.exe
Token: SeLockMemoryPrivilege	1128	msiexec.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
1128	msiexec.exe
1128	msiexec.exe
5228	ScreenConnect.WindowsClient.exe
5228	ScreenConnect.WindowsClient.exe
5228	ScreenConnect.WindowsClient.exe
5228	ScreenConnect.WindowsClient.exe
5228	ScreenConnect.WindowsClient.exe

Suspicious use of SendNotifyMessage 5 IoCs

pid	Process
5228	ScreenConnect.WindowsClient.exe
5228	ScreenConnect.WindowsClient.exe
5228	ScreenConnect.WindowsClient.exe
5228	ScreenConnect.WindowsClient.exe
5228	ScreenConnect.WindowsClient.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1128	msiexec.exe
4208	msiexec.exe
5940	MsiExec.exe
5496	MsiExec.exe
944	MsiExec.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 5940	4208	msiexec.exe	91
PID 5940 wrote to memory of 2076	5940	MsiExec.exe	92
PID 5940 wrote to memory of 1220	5940	MsiExec.exe	93
PID 5940 wrote to memory of 4184	5940	MsiExec.exe	94
PID 4208 wrote to memory of 5492	4208	msiexec.exe	99
PID 4208 wrote to memory of 5496	4208	msiexec.exe	101
PID 4208 wrote to memory of 944	4208	msiexec.exe	103
PID 4592 wrote to memory of 5228	4592	ScreenConnect.ClientService.exe	110
PID 4592 wrote to memory of 5924	4592	ScreenConnect.ClientService.exe	111

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
1⤵
- Badlisted process makes network request
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:1128

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Enumerates connected drives
- Boot or Logon Autostart Execution: Authentication Package
- 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:4208
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 3E6B0EB1ED83C12D817F210A23CA38D3 C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5940
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4F8.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240715421 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2076
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB90.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240717312 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
    3⤵
    - Badlisted process makes network request
    - Loads dropped DLL
    - Reads the TCP/IP host and domain name from the registry
    - System Location Discovery: System Language Discovery
    PID:1220
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI163F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240719562 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:4184
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:5492
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding B547A9ABE5BA6F837FEBD6F9099A7F4F
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:5496
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding CA6ECAD0368C1E2223CE35E34A883E4F E Global\MSI0000
  2⤵
  - Drops file in Windows directory
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:944

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:6104

C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.ClientService.exe
"C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-abb4d1-relay.screenconnect.com&p=443&s=a0353651-e513-4f50-a3b1-324e14aa3ffa&k=BgIAAACkAABSU0ExAAgAAAEAAQDtxvKElQJmp7YcV1qyAfIWISD5aoi4npkKOBKTyii7iFVbMJSZLYTpR9ebQcO1vvbaDMl23dYvasgKnI8Z6rEvnm0bfp9E6bgzFSFIxbCbwqM2WUwI5v2oJzHkP1jso9iYYhOo9etLCDNqm36zwE5pZEQid4eFwiOqXqMifeMifEERpko8zdcTwbr839eus2zbO5zgcJzkrRJlb2e656KKJjLhiwBbWVQnDz0KDPWCISrJT7Nh7ZmbBKxMPJp4SCzkXh15PbuxpPgO4P3IIBMysNpkntSsikwbMdPjbAgFFHNp1AOqzdjUfq6sI5i6MG3eEhn7OZ8Dfw8wzraomwji&c=po&c=co&c=yo&c=y&c=&c=&c=&c="
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:5528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5528 -s 1336
  2⤵
  - Program crash
  PID:2816

C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.ClientService.exe
"C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-abb4d1-relay.screenconnect.com&p=443&s=a0353651-e513-4f50-a3b1-324e14aa3ffa&k=BgIAAACkAABSU0ExAAgAAAEAAQDtxvKElQJmp7YcV1qyAfIWISD5aoi4npkKOBKTyii7iFVbMJSZLYTpR9ebQcO1vvbaDMl23dYvasgKnI8Z6rEvnm0b%2fp9E6%2bgzFSFIxbC%2bwqM2WUwI5v2oJzHkP1jso9iYYhOo9etLCDNqm36zwE5pZEQid4eFwiOqXqMifeMifEERpko8zdcTw%2br839eus2z%2bO5zgcJzkrRJlb2e656KKJjLhiwB%2bWVQnDz0KDPWCISrJT7Nh7ZmbBKxMPJp4SCzkXh15PbuxpPgO4P3IIBMysNpkntSsikw%2bMdPj%2bAgFFHNp1AOqzdjUfq6sI5i6MG3eEhn7OZ8D%2fw8wzraomwji&c=po&c=co&c=yo&c=y&c=&c=&c=&c="
1⤵
- Sets service image path in registry
- Drops file in System32 directory
- Executes dropped EXE
- Loads dropped DLL
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsClient.exe
  "C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsClient.exe" "RunRole" "0590f796-afff-4755-8553-15c7d645baef" "User"
  2⤵
  - Executes dropped EXE
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:5228
- C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsClient.exe
  "C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsClient.exe" "RunRole" "5c315f16-d33c-4812-b6c9-83c89541dada" "System"
  2⤵
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  PID:5924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5528 -ip 5528
1⤵
PID:4848

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Authentication Package

T1547.002

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Installer Packages

T1546.016

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Authentication Package

T1547.002

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Installer Packages

T1546.016

Defense Evasion

Modify Registry

T1112

System Binary Proxy Execution

T1218

Msiexec

T1218.007

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

e596b63.rbs

Path C:\Config.Msi\e596b63.rbs
Size 214KB
SHA256 9e67fc49fc6dd85028e23dea34ac504cefbe8e23fae7142f0c243b265bac75e3
MD5 dfab581a00a494667bae2336787dd2fb
SHA1 1192f86ec828fe57871ab64e80235f43d7f689ff
SHA512 1e8333ad2c7c2a8030004245c0573ab87e89766f2d521f2071a7e3c1d0485ab2f4c2bee00cf99f25afaab0e3cf424d08e9b9b99ba9e47dba4f0b072b12121ec8
SSDEEP 3072:JEZ9LUHM7ptZ8UKOGw5vMWSuRy1YaDJkflQn3H+QDO/6Q+cxbr0qMG9+:JEZuH2aCGw1ST1wQLdqv9+
TLSH
T191247C217480807EE7FA1A32D93E9A61BE7DF6641760C59EC3888C1E5D604D06BF7763
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.Client.dll

Path C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.Client.dll
Size 413KB
SHA256 be1e3522a20c244b3e20b4f7bc2fc736b6103c930d6cf8366e0bb97cb82d5241
MD5 1ff37b4e9718566e21dfa25988ffef07
SHA1 5f33f8a149b9378ba04f37a0c5de875222f63ff6
SHA512 3d893b6822b894f2de598f697f734395f54e1529641e46541c842e2f8a01401d4d3242e0944faea7b7f22eb0ccd0c5c62ff7e788ce17569a33899d5d5a599518
SSDEEP 6144:COHlsim1vvKSuYXCD8ETEavHy+vd7JPYIYyqQni65/PTI:CeQDudDHTEavSW7OQniOI
TLSH
T14B94CF9663E8596EED9F0673F0A161284EB6BC05A152F3E94D0474F51E7B3C28780BE3
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.ClientService.dll

Path C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.ClientService.dll
Size 92KB
SHA256 67f75a75bc19288cac0071e19e7af4463f2ecf4bb75fe13af80a4f0f57144253
MD5 e4c4942ae27f24bf6378017fc1a8ee08
SHA1 2309867ac0282b01682c076ce68f33791426c666
SHA512 1a34a0ed1f8182b04c73e2f07ca023a10b08a5c0d6df33f01d0a3a5bcae45a3aa9c043d84bac97f690823e0b7c72761afe6db937e79b249b30051811659bca5b
SSDEEP 1536:qzu1ewsuwDP/2ovANyI9x9pxZUuQOV+eGQ0ZUazxvmVRo9sb7HCz:qzc2j/BAkI9lXQOVAQAUazxvmVRoGbWz
TLSH
T15E936C4293FCA92BC9DF0E387061F26106B1BA13D9E6E7D46D8860DA2E527C15F1439F
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.ClientService.exe

Path C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.ClientService.exe
Size 93KB
SHA256 bc19602c59b0ba4a7a99f791c87298df76d8d62f86a928e112dca285a88a5a77
MD5 5fb9ee48afabedc5139695e0c4ef963a
SHA1 d48ce756eaebe56a6a82c0e9a4bee79f5f5f23ae
SHA512 505b93ab84a6278b70ba8c4417f75e82351ebba8b6b706065fd86f815fd4186cfd8688b4c7c4fd5eed2766d0e5648e2bf259fd4d6e21072f12e221038b29e4c7
SSDEEP 1536:xg1s9pgbNBAklbZfe2+zRVdHeDxGXAorrCnBsWBcd6myJkgkU0HMP7uSFy:ChbNDxZGXfdHrX7rAc6myJkgkU0Ha6SA
TLSH
T1BF935B13B5C28871E573093158E0DAB09A7FF9615E61DEAB3788022E4F341C1AE75EB7
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.Core.dll

Path C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.Core.dll
Size 583KB
SHA256 91ae86fd5439c7d8a54b75cbb60c2ff9bdff84657b962d340d48cdf656c4928d
MD5 ad5711de3b03ebab051156c6d4a50a00
SHA1 138c0a70418d47fa1f67249606157eeec6f722a6
SHA512 d954202c34ede28ff0ee2fe26d2eae63730ac2a4585484885c8219619af8719da29b8523a624872a411ec062afb8c4bd52bcd4fc5f6c0f5051cc13dc94c6e0ec
SSDEEP 6144:MqphefLh1hWOcIl4hootKghzI9nR3DIagtqXyn4wFB0/chwDHax4kpmIlmlW6c:NhHiwVehRTIxtqOB8c
TLSH
T15FC48C1037A8877AC5EE17BBE073B6128771F417615AE79BB684E4A92CC23C64F103E5
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.Windows.dll

Path C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.Windows.dll
Size 1.7MB
SHA256 9ddaf17f7f802e58c645d42184e0ac33dc755a885bc3637a7d837a4f6ae5fdea
MD5 1340093893b49768aa505b19146d39f8
SHA1 a94d5316b6eadf7c51c07e10dd9d1e603152ac5a
SHA512 dbdf176f57b91a00bab7ddab3a2bd8607dc5d288a7e13d992b2cfc91c3e65f8e22bcc9d3fcaa654bf064ee757e4e6296f71eb776c27e8766d4b053b5d3681a2b
SSDEEP 24576:ys7eFj+Ifz3zvnXj/zXzvAAkGz8mvgtX79S+2bfh+RfmT01krTFiH4SqfKPTsUTy:D7eJkGYYpT0+TFiH7efP/
TLSH
T1CC85AD41E2C364F5D46B047888BF576ABA743C080365CAFB93D4AE366D33BC09A36756
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.WindowsAuthenticationPackage.dll

Path C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\ScreenConnect.WindowsAuthenticationPackage.dll
Size 254KB
SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
MD5 5adcb5ae1a1690be69fd22bdf3c2db60
SHA1 09a802b06a4387b0f13bf2cda84f53ca5bdc3785
SHA512 812be742f26d0c42fdde20ab4a02f1b47389f8d1acaa6a5bb3409ba27c64be444ac06d4129981b48fa02d4c06b526cb5006219541b0786f8f37cf2a183a18a73
SSDEEP 3072:qJvChyA4m2zNGvxDd6Q6dtaVNVrlaHpFahvJ9ERnWtMG8Ff2lt9Bgcld5aaYxg:0IvxDdL6d8VNdlC3g0RCXh5D
TLSH
T1C5448E15B7A40CB4EC77823888535A06E776BC160760E6CF03E0825ADF6F7D1A63E762
MD5 SHA1 SHA512 SSDEEP TLSH

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system.config

Path C:\Program Files (x86)\ScreenConnect Client (225cb0718121ff83)\system.config
Size 962B
SHA256 6a840d1f1e59044d21acb215aa3d6ef0faeca2c76bd4d7f09472e73c4167d95a
MD5 6481bd9aa3c700e11de1d0ed63e55401
SHA1 b7d2a010532e83fa9428f1043abb4907044f60f4
SHA512 8770faa231603adf38f186abf5450f17c1d7e4eef5da52688d405238d030a3b02b0e2641b6b27514572734c683d7eca9528b677e9e19fcfc8cc802dd2a5f866f
TLSH
T1E6111C667284EE5B03B31E62C6154204BEBA259B284010D974AF823F6F311CA0B932CE
MD5 SHA1 SHA512 TLSH

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MSI4F8.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI4F8.tmp
Size 1.1MB
SHA256 d39e53d74c6840d331b91b9c949db26f7c93a824e9fb104c532346a8c465b6e2
MD5 60c17bdfff5e210386dfea1f1de70b3f
SHA1 434fd7cdc1b2236111fb6c7b8fc1570fcd8871bc
SHA512 4bcf7bae6fe5e7eb1466a2ffbbf3b2a7393bcf58f9c508a30f08f040cef6bfc8a6140745fd99ff8ca8d41f96e2d9a464fe47a2b633aa15a13f7980928c9c6a6c
SSDEEP 24576:RUUGGx0Eq0amjMfFFbL0PWsEcsLTMRju4oK9+lXFVtXx3dB:iGx6j5Lsbs/8uUmfdB
TLSH
T13335232075A48974F3D7A7305D74F22269FE3961A6B1C09F6B4A0A3C1FB4791AA74333
MD5 SHA1 SHA512 SSDEEP TLSH

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Microsoft.Deployment.WindowsInstaller.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI4F8.tmp-\Microsoft.Deployment.WindowsInstaller.dll
Size 172KB
SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
MD5 5ef88919012e4a3d8a1e2955dc8c8d81
SHA1 c0cfb830b8f1d990e3836e0bcc786e7972c9ed62
SHA512 4544565b7d69761f9b4532cc85e7c654e591b2264eb8da28e60a058151030b53a99d1b2833f11bfc8acc837eecc44a7d0dbd8bc7af97fc0e0f4938c43f9c2684
SSDEEP 3072:FkfZS7FUguxN+77b1W5GR69UgoCaf8TpCnfKlRUjW01Ky4:x+c7b1W4R6joxfQE
TLSH
T14E045B2563FC473ECAEF87B4E2624251E7B2E2E97113DB0DDC8541AA2522780F792753
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.Core.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI4F8.tmp-\ScreenConnect.Core.dll
Size 573KB
SHA256 399ab0c1bcf2bf0c7618066d676b6958c2a5f4fed2d8f769f0eeea5492720e4f
MD5 a1fd1e0b857d8f4c83d5c0db65027be0
SHA1 88b30f16153d6666cf52c59ec90c2c167eb958d6
SHA512 2bae456e99ffbc8a318af9731b44c64bc61f1ea8febbaf7924187140376428a1f9a24b1ea052e0185c058747e4789086793277e38253155cc33da0af9ac4c1d6
SSDEEP 6144:ZqphefLh1hWOcIl4hootKghzI9nR3DIagtqXyn4wFB0/chwDHax4kpmIlmlW6:yhHiwVehRTIxtqOB8
TLSH
T10CC47C1037B8877AC5EE17BBE073B6128771F417615AE79BB684A4E92C823C64F103E5
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.InstallerActions.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI4F8.tmp-\ScreenConnect.InstallerActions.dll
Size 24KB
SHA256 f35f007dcb154d0346745309630b8cc21fe49638e76dc8dd77a3c62cb0aa754a
MD5 2b5e159d82a691b088ad142a25ab6510
SHA1 19cdc5300313af100e400f947e15365c5de115cf
SHA512 0526b74ec317b7bdae9214461cce97432ea99c74aab5e1af90c958c7a483a28b2f290f81a4bdb8aac104d206365e72a3da1395db728e2114190231b438386c8f
SSDEEP 384:LbazzV1VTsaS8hQlLkmoA8V7NaNeirM0dbMsFkjvZBL206Q5e:PazC98VMcLv52
TLSH
T141B2C630674DE27AF9EA1634B563FBA001B3BDB3CCE9DA8565A420153D253E04FB5B06
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.Windows.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI4F8.tmp-\ScreenConnect.Windows.dll
Size 1.7MB
SHA256 4c281797c351fed77890634006a51bc3a6c60efa4c831fe21934353f304cdf61
MD5 74a49646471dc45de9152a87b1ad5e66
SHA1 368d84c14dd84888ce32c87629f8138b14cbc87c
SHA512 528fec703c6f6fcfd0ce67fb33c6e1d0cd06e9c990071306b3430e93479a5fbb34978680f1774943edf34b27e0b21a7f1782d0748b6bcd159f4e290c6e1eaf8a
SSDEEP 24576:Ms7eFj+Ifz3zvnXj/zXzvAAkGz8mvgtX79S+2bfh+RfmT01krTFiH4SqfKPTsUTM:57eJkGYYpT0+TFiH7efP
TLSH
T1E985AD41E2C364F5D46B047888BF576ABA743C080365CAFB93D4AE366D33BC09A36756
MD5 SHA1 SHA512 SSDEEP TLSH

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CustomAction.config

Path C:\Users\Admin\AppData\Local\Temp\MSIB90.tmp-\CustomAction.config
Size 234B
SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
MD5 6f52ebea639fd7cefca18d9e5272463e
SHA1 b5e8387c2eb20dd37df8f4a3b9b0e875fa5415e3
SHA512 b5960066430ed40383d39365eadb3688cadadfeca382404924024c908e32c670afabd37ab41ff9e6ac97491a5eb8b55367d7199002bf8569cf545434ab2f271a
TLSH
T18CD0A70405D0FD1B5E231A2337524559FF34B1E290A44408B06F3A130A220CD4757317
MD5 SHA1 SHA512 TLSH

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ScreenConnect.WindowsInstaller.dll

Path C:\Users\Admin\AppData\Local\Temp\MSIB90.tmp-\ScreenConnect.WindowsInstaller.dll
Size 137KB
SHA256 7fcba418fd772a38e420238d49e8301f23caf47eadcef400ecab8738813d9694
MD5 7c6dd06051409a1c54dfc9e264e2a218
SHA1 e869a68b82b7bcfd8e6683b0a6a6486868e949d7
SHA512 1d2ef1b436a7faeb2dc32685ee47a6b494d5c73bdf3d6fee96238e015fedba8c814ba6c7ab84519462a39be4e0e43029d9ba02bb99384ecfb2722753555e1036
SSDEEP 1536:HU7AWOVH+oj12lAW5SDVzdi43b12vPDKukpQBhX6dhloGDutUVfh5U3KiQtlJUMR:HUADVZ12l4L12v2ukpQQ/Vfj5H6o3
TLSH
T186D3393463AC9A77E6EF5ABDE470B1400BF2B527B4D3F78E594864F818127D14A2036B
MD5 SHA1 SHA512 SSDEEP TLSH

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MSI7130.tmp

Path C:\Windows\Installer\MSI7130.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

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e596b64.msi

Path C:\Windows\Installer\e596b64.msi
Size 9.8MB
SHA256 d239568e87157f36104fe99f60c5c72e4257fb672c2c469629573837feee2143
MD5 1b43e328e36063e58a79941967cadff2
SHA1 d6284f91d925abac2fbafd9921e13a700e606fba
SHA512 3077f86e48ca70ec14fe0ca92fc2731f17292c6b76bd2680e918e664db048f39e038b30e815c5a4ebd1d6bbaf3dc6e9040b3cf64599ba58445d6472d474fe988
SSDEEP 196608:5Frg904SOL2Y5V1vFrg904SOLmFrg904SOLeFrg904SOL:5Fri04SOLJX1vFri04SOLmFri04SOLeg
TLSH
T18BA6237262F8D125E2F34639FE7992E1583A7D51ED12C01F5B28381EA271E808A77377
MD5 SHA1 SHA512 SSDEEP TLSH

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i0isbnp5.newcfg

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\i0isbnp5.newcfg
Size 683B
SHA256 f20ddf0d40ccd7b022b2c45c28a87567f3720dc6d4ce8e999bd45d48a37c550e
MD5 bb02e943c6a2ce56461f9472de5d46b5
SHA1 1c7188c2db022c5b31d929e528688e579bc4260a
SHA512 2c57c1acd21cf90f676500a5e1bda6a135ffd8d0897ef6014398d1a2be22289e46d0c7d11e6a658ce9250a779a4396013b884319fe3a6100bbb49740ca17d3c1
TLSH
T14201F95971C4AE5602A35E32D6214745FE71569B026520D874AE213B9F315CB03E32DA
MD5 SHA1 SHA512 TLSH

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rmtolvn1.newcfg

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\rmtolvn1.newcfg
Size 884B
SHA256 113c1dc054a1842630a2ff0fa9d140e37fbc0c996831aced398cb82a92b62bbe
MD5 96ffe4019bd1e317be06cf51a2c1326c
SHA1 3651e0c142e63fb247a780a27813f1ad525a5031
SHA512 011a90ed8fb12bfb9990dd8c08d9168f4033d3c41e098a62bbcb582414f80e22010455b242b3f7705950269cd06c75e1bbad61d9745e500d4f7c983011bcd875
TLSH
T10011895C72C0AE5612B32A32D6214385FD721A9B027960D874EE213B5F705DB03E32EB
MD5 SHA1 SHA512 TLSH

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user.config

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (225cb0718121ff83)\user.config
Size 520B
SHA256 a1b1543f03422e08cdb67acb028047dbb3d21b954a0527487e51f449de00e1c7
MD5 02661ef26646917c1d0d0a0038c1cdcc
SHA1 8b943a8a3ef0e4c5ba7221d396ebccd8f2fe3168
SHA512 9514bacb4eea6fcfab5940373bf35caa4cd678721cdc6a2a43f1f93dad5408347c583d566d385eac58374f9b89abe769bc9cf293539132429955135d8547c206
TLSH
T10EF0E9A531846D5703A35E23C6124745FE726A9B0555249874AF217B9F315CE03A31CE
MD5 SHA1 SHA512 TLSH

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memory/1220-64-0x0000000005F60000-0x0000000005F88000-memory.dmp

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memory/2076-33-0x0000000005820000-0x00000000059D0000-memory.dmp

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memory/2076-21-0x0000000003450000-0x000000000347E000-memory.dmp

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memory/2076-29-0x0000000005550000-0x00000000055E6000-memory.dmp

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memory/2076-34-0x0000000005F90000-0x000000000654A000-memory.dmp

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memory/2076-25-0x0000000003490000-0x000000000349C000-memory.dmp

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memory/4592-173-0x0000000004220000-0x0000000004270000-memory.dmp

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memory/4592-198-0x0000000004810000-0x00000000048E6000-memory.dmp

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memory/4592-194-0x00000000042E0000-0x000000000434C000-memory.dmp

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memory/4592-197-0x0000000004270000-0x00000000042B1000-memory.dmp

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memory/4592-195-0x0000000004620000-0x00000000046B2000-memory.dmp

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memory/5228-211-0x0000000000ED0000-0x0000000000F80000-memory.dmp

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memory/5228-212-0x000000001BB50000-0x000000001BBBC000-memory.dmp

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memory/5228-215-0x000000001BF90000-0x000000001C026000-memory.dmp

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memory/5228-216-0x000000001C1E0000-0x000000001C390000-memory.dmp

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memory/5228-217-0x00000000031B0000-0x00000000031CA000-memory.dmp

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memory/5228-218-0x000000001C520000-0x000000001C6A8000-memory.dmp

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memory/5528-152-0x00000000052F0000-0x0000000005386000-memory.dmp

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memory/5528-141-0x0000000002D80000-0x0000000002D9A000-memory.dmp

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memory/5528-157-0x00000000055B0000-0x0000000005760000-memory.dmp

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