c804bfbd38f4b2be398483fbb433d420bea7e542a41903999122433e21a652f4

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
04/08/2026, 00:14

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General

Target
ScreenConnect.ClientSetup.exe
Size 12.2MB
Sample260804-ajbjpszcpc
SHA256 c804bfbd38f4b2be398483fbb433d420bea7e542a41903999122433e21a652f4
MD5 7bd82cb937942b0853150b100296cc7d
SHA1 08198be92b40c1fc397899745f8ce13b811e5c99
SHA512 6eab21e0734798309dbb40688bff325e6c58a0b9eb8136ea2a9fb88318f3ab3261573d29faacc436523378630b4a946fd07fecb1e67d05537da09eabec1b1bbe
SSDEEP 393216:h2xiFxbwpa3CF2xiFxbwpaD2xiFxbwpau2xiFxbwpaT:gUFxMpKCsUFxMpxUFxMpIUFxMpw
TLSH
T1EDD61211B3D6A5B6D0BF0639D87982A55675BC058B62C6EF53D4B92C2D32BC08E32373
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

discovery ransomware

Malware Config

Signatures

Badlisted process makes network request 5 IoCs

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

flow	pid	Process
6	2384	msiexec.exe
8	2384	msiexec.exe
12	2384	msiexec.exe
14	2384	msiexec.exe
16	4052	rundll32.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)	\??\S:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\Control Panel\International\Geo\Nation	ScreenConnect.ClientSetup.exe

Drops file in Program Files directory 14 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\Client.resources	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.Client.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.Core.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.WindowsClient.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.WindowsFileManager.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.ClientService.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\system.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.ClientService.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.Windows.dll	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.WindowsBackstageShell.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.WindowsBackstageShell.exe.config	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.WindowsClient.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\ScreenConnect.WindowsFileManager.exe	msiexec.exe
File created	C:\Program Files (x86)\ScreenConnect Client (4c38e3bca398b1a1)\Client.en-US.resources	msiexec.exe

Drops file in Windows directory 11 IoCs

description	ioc	Process
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\Installer\SourceHash{28B898C3-E803-4BDA-A173-C2A138A360D8}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIFD56.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIFDB5.tmp	msiexec.exe
File created	C:\Windows\Installer\e58fb64.msi	msiexec.exe
File created	C:\Windows\Installer\{28B898C3-E803-4BDA-A173-C2A138A360D8}\DefaultIcon	msiexec.exe
File created	C:\Windows\Installer\e58fb62.msi	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\{28B898C3-E803-4BDA-A173-C2A138A360D8}\DefaultIcon	msiexec.exe
File opened for modification	C:\Windows\Installer\e58fb62.msi	msiexec.exe

Loads dropped DLL 31 IoCs

pid	Process
4988	MsiExec.exe
3316	rundll32.exe
3316	rundll32.exe
3316	rundll32.exe
3316	rundll32.exe
3316	rundll32.exe
3316	rundll32.exe
3316	rundll32.exe
3316	rundll32.exe
3316	rundll32.exe
4988	MsiExec.exe
4052	rundll32.exe
4052	rundll32.exe
4052	rundll32.exe
4052	rundll32.exe
4052	rundll32.exe
4052	rundll32.exe
4052	rundll32.exe
4052	rundll32.exe
4052	rundll32.exe
4988	MsiExec.exe
2932	rundll32.exe
2932	rundll32.exe
2932	rundll32.exe
2932	rundll32.exe
2932	rundll32.exe
2932	rundll32.exe
2932	rundll32.exe
2932	rundll32.exe
2932	rundll32.exe
2536	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 7 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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ScreenConnect.ClientSetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	vssvc.exe

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Key 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-4c38e3bca398b1a1	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4c38e3bca398b1a1\shell\open	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\3C898B82308EADB41A372C1A833A068D\Full	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\ProductIcon = "C:\\Windows\\Installer\\{28B898C3-E803-4BDA-A173-C2A138A360D8}\\DefaultIcon"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\AuthorizedLUAApp = "0"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\DeploymentFlags = "3"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-4c38e3bca398b1a1	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Classes\sc-4c38e3bca398b1a1\shell\open\command	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4c38e3bca398b1a1\shell\open\command\ = "\"C:\\Program Files (x86)\\ScreenConnect Client (4c38e3bca398b1a1)\\ScreenConnect.WindowsClient.exe\" \"%1\""	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\AdvertiseFlags = "388"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\SourceList\PackageName = "ScreenConnect.ClientSetup.msi"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4c38e3bca398b1a1\URL Protocol	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4c38e3bca398b1a1\shell	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4c38e3bca398b1a1\shell\open\command	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\Assignment = "1"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\Language = "1033"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\Version = "436535299"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\A087BECA7CFE17BBC4833ECB3A891B1A\3C898B82308EADB41A372C1A833A068D	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\26.5.3.9691\\4c38e3bca398b1a1\\"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\sc-4c38e3bca398b1a1\UseOriginalUrlEncoding = "1"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\SourceList	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\SourceList\Media	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\SourceList\Media\1 = ";"	msiexec.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\Clients = 3a0000000000	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\ScreenConnect\\26.5.3.9691\\4c38e3bca398b1a1\\"	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\PackageCode = "3C898B82308EADB41A372C1A833A068D"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\SourceList\Net	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\3C898B82308EADB41A372C1A833A068D	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\ProductName = "ScreenConnect Client (4c38e3bca398b1a1)"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\3C898B82308EADB41A372C1A833A068D\InstanceType = "0"	msiexec.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\A087BECA7CFE17BBC4833ECB3A891B1A	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3732	msiexec.exe
3732	msiexec.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3932	ScreenConnect.ClientSetup.exe
Token: SeShutdownPrivilege	2384	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2384	msiexec.exe
Token: SeSecurityPrivilege	3732	msiexec.exe
Token: SeCreateTokenPrivilege	2384	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2384	msiexec.exe
Token: SeLockMemoryPrivilege	2384	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2384	msiexec.exe
Token: SeMachineAccountPrivilege	2384	msiexec.exe
Token: SeTcbPrivilege	2384	msiexec.exe
Token: SeSecurityPrivilege	2384	msiexec.exe
Token: SeTakeOwnershipPrivilege	2384	msiexec.exe
Token: SeLoadDriverPrivilege	2384	msiexec.exe
Token: SeSystemProfilePrivilege	2384	msiexec.exe
Token: SeSystemtimePrivilege	2384	msiexec.exe
Token: SeProfSingleProcessPrivilege	2384	msiexec.exe
Token: SeIncBasePriorityPrivilege	2384	msiexec.exe
Token: SeCreatePagefilePrivilege	2384	msiexec.exe
Token: SeCreatePermanentPrivilege	2384	msiexec.exe
Token: SeBackupPrivilege	2384	msiexec.exe
Token: SeRestorePrivilege	2384	msiexec.exe
Token: SeShutdownPrivilege	2384	msiexec.exe
Token: SeDebugPrivilege	2384	msiexec.exe
Token: SeAuditPrivilege	2384	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2384	msiexec.exe
Token: SeChangeNotifyPrivilege	2384	msiexec.exe
Token: SeRemoteShutdownPrivilege	2384	msiexec.exe
Token: SeUndockPrivilege	2384	msiexec.exe
Token: SeSyncAgentPrivilege	2384	msiexec.exe
Token: SeEnableDelegationPrivilege	2384	msiexec.exe
Token: SeManageVolumePrivilege	2384	msiexec.exe
Token: SeImpersonatePrivilege	2384	msiexec.exe
Token: SeCreateGlobalPrivilege	2384	msiexec.exe
Token: SeCreateTokenPrivilege	2384	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2384	msiexec.exe
Token: SeLockMemoryPrivilege	2384	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2384	msiexec.exe
Token: SeMachineAccountPrivilege	2384	msiexec.exe
Token: SeTcbPrivilege	2384	msiexec.exe
Token: SeSecurityPrivilege	2384	msiexec.exe
Token: SeTakeOwnershipPrivilege	2384	msiexec.exe
Token: SeLoadDriverPrivilege	2384	msiexec.exe
Token: SeSystemProfilePrivilege	2384	msiexec.exe
Token: SeSystemtimePrivilege	2384	msiexec.exe
Token: SeProfSingleProcessPrivilege	2384	msiexec.exe
Token: SeIncBasePriorityPrivilege	2384	msiexec.exe
Token: SeCreatePagefilePrivilege	2384	msiexec.exe
Token: SeCreatePermanentPrivilege	2384	msiexec.exe
Token: SeBackupPrivilege	2384	msiexec.exe
Token: SeRestorePrivilege	2384	msiexec.exe
Token: SeShutdownPrivilege	2384	msiexec.exe
Token: SeDebugPrivilege	2384	msiexec.exe
Token: SeAuditPrivilege	2384	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2384	msiexec.exe
Token: SeChangeNotifyPrivilege	2384	msiexec.exe
Token: SeRemoteShutdownPrivilege	2384	msiexec.exe
Token: SeUndockPrivilege	2384	msiexec.exe
Token: SeSyncAgentPrivilege	2384	msiexec.exe
Token: SeEnableDelegationPrivilege	2384	msiexec.exe
Token: SeManageVolumePrivilege	2384	msiexec.exe
Token: SeImpersonatePrivilege	2384	msiexec.exe
Token: SeCreateGlobalPrivilege	2384	msiexec.exe
Token: SeCreateTokenPrivilege	2384	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2384	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2384	msiexec.exe
2384	msiexec.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3932 wrote to memory of 2384	3932	ScreenConnect.ClientSetup.exe	85
PID 3732 wrote to memory of 4988	3732	msiexec.exe	90
PID 4988 wrote to memory of 3316	4988	MsiExec.exe	91
PID 4988 wrote to memory of 4052	4988	MsiExec.exe	94
PID 4988 wrote to memory of 2932	4988	MsiExec.exe	100
PID 3732 wrote to memory of 2156	3732	msiexec.exe	107
PID 3732 wrote to memory of 2536	3732	msiexec.exe	110

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

C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
"C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\4c38e3bca398b1a1\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
  2⤵
  - Badlisted process makes network request
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:2384

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3732
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 4901BF350F85AD435B759A393939ED1F C
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4988
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9EDB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240688937 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3316
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA370.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240690046 8 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
    3⤵
    - Badlisted process makes network request
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:4052
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIADB2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240692671 15 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2932
- C:\Windows\system32\srtasks.exe
  C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
  2⤵
  PID:2156
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 9B0EF734C948614AEF6835D991A50180
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2536

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
PID:4672

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

e58fb63.rbs

Path C:\Config.Msi\e58fb63.rbs
Size 10KB
SHA256 982d23f74baea0b3ac5854bbaa7e7edabcc47d3697dcd6e7f73ca6e0c9970968
MD5 58958e01360ad65b8659b9b94e72bdfa
SHA1 2b49b8ebfd65b32ae7db03851e23dd72de190f59
SHA512 858978fdf6275d8a6cfad6a9003f6753a9e28f0af4cbbbcc133a50a4a51e2453c72e1c2c2393b1378392450c645dcdd8c7f2a26304e44d3eed3d2e671d4b76f7
SSDEEP 192:Ws6yy5AC6+ie4OUkeI2UkeXcGbn43jpmdD:Ws6yy5AslUkgUkUD4cdD
TLSH
T1EE2237417E0292E1F9821B72C7571A613F76DEEC9350630F44CD8139AE92BC91BBD1DA
MD5 SHA1 SHA512 SSDEEP TLSH

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8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
Size 727B
SHA256 78ddef999328e6680eb41442ca4d98f66916c8d223176367e1dfd76bbf94c568
MD5 c79fdd6bfaf8e8ceb59d3593a806a1e9
SHA1 71cacbaff85c484c436ae75454597e2e862becf4
SHA512 b13fad3d5363afea6ba67cfdcf53d7b3fd1af7cfb8d405bce4ff58bd9ed7e53760743634783cc61ac7094e7584a26bf1d505a7a3166fa32d42329db8d098cecd
TLSH
T1960194022FB89308D687DC21DF3DA7A0B1C61A00B6FC1A6E23B555E4F4BC5965B02754
MD5 SHA1 SHA512 TLSH

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BA74182F76F15A9CF514DEF352303C95

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\BA74182F76F15A9CF514DEF352303C95
Size 737B
SHA256 8e1136ed51666cc5b9f9b98847c67ce35ff60a6a54cf9a5734dc1e8defd26aa7
MD5 565f16a83bf23ee5027df4e567db359b
SHA1 40e1664e12edfae1b015a9f326663bc19aab0c95
SHA512 76d755b8fb556dece926a1d2f24f80f0bbfffab403edda0509ea5608471aecd0644b78cae3bfefd9a14b9bb65548efc69888ac6b87d7479c99275adc9fc99feb
TLSH
T19D0160F09410092905778D562A00C52A6C7296A4E60680AA0A11C16E3BFFF8BE6A279B
MD5 SHA1 SHA512 TLSH

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8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
Size 404B
SHA256 e2820c3028fe604747c48213809a9ba9162698cc0e0c436cf7ae83d444d63dde
MD5 878f9c7aca267c6e1e22979a52fa8de4
SHA1 5c9d9e1b4779e06af825bd6fe48937da837bb203
SHA512 236b1025038b692b251ea4e177d5ce4c42c37fa259536df1de0d3d6f3fed67a8c26c420e12c32d24a02e9f49f1f45a12866899d030cff2b656c2d3b171daf4a5
TLSH
T1FFE0203431F9895DF0F2D43583F6DD235859F1961541C26E154017555A1AB409CA1624
MD5 SHA1 SHA512 TLSH

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BA74182F76F15A9CF514DEF352303C95

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\BA74182F76F15A9CF514DEF352303C95
Size 248B
SHA256 c56509bc3adffd86fc3e18185a39d155d1464800d397b140596b9e6562b8c352
MD5 30e9b2680907520a8eba72c5b0cd0272
SHA1 2549efee7b13417aa653d2755ef58882f1cdea05
SHA512 84286b51a957f4848387c8df67ae6c78be3b33d8944e3cc12f72555bfe0ba6bd9670227f117a50f150d73b40bccbd42fb366d438b6995c630a3323a9a8fddcfc
TLSH
T1EAD012142BEE9227F267563B5DF08B416F24BD6BB942CF090BB4024E942DF011D72A5B
MD5 SHA1 SHA512 TLSH

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rundll32.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
Size 746B
SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
MD5 768929616b943159a05e24024951fa13
SHA1 56bbd9a00695ab7aa25180fe31dff0c254aa9df3
SHA512 f078e880106f93eb86cf66f77e9425fc3cfb82aaf7c7a354b9d55bb8a6a0d87b4326289f2ab6861dad6122f1fcc560125b813b366f84184ee71ac54078ccbbb5
TLSH
T10F017B703322F5D589032F430C5D6A9507FF0769A664FE1CB96E225ED82A1276B322E3
MD5 SHA1 SHA512 TLSH

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MSI9EDB.tmp

Path C:\Users\Admin\AppData\Local\Temp\MSI9EDB.tmp
Size 1.1MB
SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
MD5 9d80e2156021752a97d9235737b2be48
SHA1 8767acf50f641589d0002902e2b1e1905f9a451a
SHA512 eaa64b6b51ad1b1f6bfd54747bdcf4cfcebba426cb067670d7a354cc140991a9b5af62f77622a2b11e75bbd609cb34283f5b2121f6c7792505fb47138a6674af
SSDEEP 24576:RUUGGA+cVsmmpjGDlajmMdwKQM37nz/ofVg2z1U/0i0FeNQVEh2:iGA+cVsmymlmndHZ3jzgfVg2Je0rNyc
TLSH
T167352320B2E59035E5AA2A716D3993A06DBD797169B4C1CD37CA427E4EF0F82F530363
MD5 SHA1 SHA512 SSDEEP TLSH

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Microsoft.Deployment.WindowsInstaller.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI9EDB.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\MSI9EDB.tmp-\ScreenConnect.Core.dll
Size 569KB
SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
MD5 cba9b2f6ef85937971599bb0cf0266db
SHA1 d60bc37f7290cff778a6a949203b39582aade582
SHA512 1f9b4b5aa827954b813312f94f59998297a52d6b4bca565838760754e4f39fd48627c00f9d0a804b5c10ec82359cac7e68675353757f156e594c70bd82c123c3
SSDEEP 6144:j3IGbCeeMkZBRqj1xcvWlEfu37PtJp71A/J7ysZVFeEjIfR9BwnNXJyS/chwDTaM:DpbCeMmxnFrtyFQEq+NXJyLA
TLSH
T12EC46D1273D8B767C5BE1B7BE0B061144270E40A7CBBE79B1994F4A9ACA73854E413B3
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.InstallerActions.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI9EDB.tmp-\ScreenConnect.InstallerActions.dll
Size 24KB
SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
MD5 2181e7bb9c5d9f01130b71ce995be3ed
SHA1 1dc41ecd120ce26a5fe95132ee0549d446c8dfdf
SHA512 1eb9f83e713f847ef6658f155aa9addc8b611244adbf2befaaf73cb83c3dd52f685cc18331cdf9948667215ef95c4ee32a12478139922b053e04b08332d31832
SSDEEP 384:6gazzV1VTsaS8hQlLkmoAUV7NaNeirM0dbMsFkjvZBo20kRF:tazC9UVMcLvgU
TLSH
T1C6B2D720678DE17AF9EA1634B563FBB011B3BDB3CCE9DA8525A420153D253E04FB5B06
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.Windows.dll

Path C:\Users\Admin\AppData\Local\Temp\MSI9EDB.tmp-\ScreenConnect.Windows.dll
Size 1.7MB
SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
MD5 3f7e109c4ac473ac1db7be8dae02eeda
SHA1 45eff8a6d123768dff98f69f5c7e1df101d4e383
SHA512 82225b7e709318e19dde2d85ae70b3dedf7518d46db146d23b1f22162c2a74253b0128857ed10626a3bab730134041515a80103e092af8d818410af7b1738a36
SSDEEP 24576:UBjf54NHFj+Ifz3zvnXj/zXzvAAkGz8mvgtX79S+2bfh+RfmT01krTFiH4SqfKPo:I4NHJkGYYpT0+TFiH7efP
TLSH
T17485AD41E2C364F5D46B047888BF972ABA743C040365CAFB97D4AE366D33BC09A36756
MD5 SHA1 SHA512 SSDEEP TLSH

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CustomAction.config

Path C:\Users\Admin\AppData\Local\Temp\MSIA370.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\MSIA370.tmp-\ScreenConnect.WindowsInstaller.dll
Size 137KB
SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
MD5 da6df22c282c0395721fa0340263ddd5
SHA1 768cdee6b95f34e85af5abe53f227ec5fab40351
SHA512 cfa596e52982565483ce9f01997cd54852eca1428ed4b9296ece0e3dbaef36568b880f1ce4fb284a75113f274b8b5217be50deca2a942edcd012ac922a722a24
SSDEEP 1536:w6PudmhTuM6szFfJ49H/8P43rO6A16dTKjkvDutUVfh5U3KiQtlJgWq8qo0yn:lPudRM6oT4bXmk1VfjgDnK
TLSH
T1A1D3393463AC9A37E6EF5AB9E431B1440BF2B527B4E3F78D694864F81C127914B20367
MD5 SHA1 SHA512 SSDEEP TLSH

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ScreenConnect.ClientSetup.msi

Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\4c38e3bca398b1a1\ScreenConnect.ClientSetup.msi
Size 9.8MB
SHA256 0560d314f24029beae2abadb232fc2d6928e5d03a5b18a7122590cf53e278429
MD5 20cf856178f7ac2e84ac2b2e83ec8866
SHA1 7480df0fb513179318855aa5ec134a7e5431d17b
SHA512 34f77592472961d425a60a18926380e5bcc3dd0cdf376111b25275f597dc3898a00c04d28e116a9617a0cd47f2f445a5a0ebf4b1282c80e576d9895d05f87865
SSDEEP 196608:SgHxiFSsYwwSA/OdB+Z4xzeeogHxiFSsYwwSA/OdB+EgHxiFSsYwwSA/OdB+ngHJ:S2xiFxbwpa3CF2xiFxbwpaD2xiFxbwpN
TLSH
T16CA6232063E58466F1B70A3EEE3586F4597A7E25DE12C08F63A4791C6D32E50CA72373
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

MSIFDB5.tmp

Path C:\Windows\Installer\MSIFDB5.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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metadata-2

Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
Size 24.1MB
SHA256 ef60ec617dba0b441a1d0c82876d563ca2370aa1f7032bfaa03f5fa7204fb4c7
MD5 23d9b1ccd240710d2f8fa5eb3454559b
SHA1 de05ce9e010cbfcc95a494eeb1e396aa40a8cf23
SHA512 aec81ae8ad9ae892ffe8a1581eff657d3c2cb0146e6e406e2a3a84533f059dcff516bacff2e09c3a2c651ac31974366892a4308bd313aa70c97844b0bcd251d4
SSDEEP 24576:pu8m+1z5doO/vvTLrWceJG64dl0zEVMiwKmNeTtlU06tuLlBovVFk6XRp:3
TLSH
T11647E42436F92110E7F79E3CA8F16A234D3A7D5B8C159E8D05411B4E0962FB1E872F6B
MD5 SHA1 SHA512 SSDEEP TLSH

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{77468af9-e4f0-44dd-8816-bb70017769e1}_OnDiskSnapshotProp

Path \??\Volume{20c84cf9-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{77468af9-e4f0-44dd-8816-bb70017769e1}_OnDiskSnapshotProp
Size 6KB
SHA256 bac757f1f2b9e4b736e66556b167c8472bb2279edd6ff2b3eae2051c643f2c74
MD5 adde76c2d3495668fe53a925ba114e1a
SHA1 8764883f84fe62b9ed55935b18ccd3a1975ccf5f
SHA512 8c47c21b1bbf10f31f5e223b1d50623306d3e2e1696b9ea73b479b9fd48f65d4771489422ff193559927711842b2000a18edfd7799cfc6c1c57bda667f1af22d
SSDEEP 96:Fi3fcAnVvc8DD84LTHzbOHXOHBlBRQ88Sc9XE56tOSVQpu:k3Vb++ZVm
TLSH
T143D18B0C5AF54311E2B3AB7129F18557A877B911EF33CB8E0298238E2671910F935F6B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3316-43-0x0000000004800000-0x000000000480C000-memory.dmp

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memory/3316-39-0x00000000047C0000-0x00000000047EE000-memory.dmp

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memory/3316-47-0x00000000048B0000-0x0000000004944000-memory.dmp

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memory/3316-51-0x0000000004B10000-0x0000000004CC0000-memory.dmp

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memory/3932-7-0x0000000006700000-0x0000000006CA4000-memory.dmp

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memory/3932-8-0x00000000039C0000-0x00000000039D0000-memory.dmp

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memory/3932-0-0x00000000039C0000-0x00000000039D0000-memory.dmp

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memory/3932-6-0x0000000005F90000-0x0000000006140000-memory.dmp

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memory/3932-5-0x0000000005F60000-0x0000000005F88000-memory.dmp

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memory/3932-4-0x0000000005ED0000-0x0000000005F64000-memory.dmp

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memory/3932-3-0x0000000003990000-0x000000000399C000-memory.dmp

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memory/3932-2-0x00000000039C0000-0x00000000039D0000-memory.dmp

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memory/3932-1-0x0000000003970000-0x0000000003978000-memory.dmp

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memory/4052-83-0x00000000055D0000-0x00000000055F8000-memory.dmp

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