Analysis
- max time kernel
149s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
30/09/2026, 11:09
Static task
static1
General
- Target [email protected]
- Size 860KB
- Sample260930-m9bcvadg39
- SHA256 df2e3b2222dcdbb5e0dbdd1200ec8fd5f67fcbea99e0023df54307eab60030ff
- MD5 b3dce5c3f95a18fd076fad0f73bb9e39
- SHA1 e80cc285a77302ee221f47e4e94823d4b2eba368
- SHA512 c184436055cf74884ad0d2bd5ca00bcd5a62d6be46253fe8c71b4daaa5c710b9df34af1b6e41f6d1af94bcdec0d33679a6a1b34bf9755678b4e177f368c11d4c
- SSDEEP 24576:TkRBL2LYcyvue73Ze+RrM31N0vhMN0T4+ZI:TkRBLgiue73Ze+SWI+Z
- TLSH T12615222EFE384732C0471270664FDBA44B6AAC18275399233289791D3D327B466F79ED
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,\"C:\\Program Files (x86)\\Def Group\\PC Defender\\pcdef.exe\"" MsiExec.exe - Possible privilege escalation attempt 2 IoCs
pid Process 1300 takeown.exe 944 icacls.exe - Executes dropped EXE 2 IoCs
pid Process 1988 rundelay.exe 4680 rundelay.exe - Modifies file permissions 1 TTPs 2 IoCs
pid Process 1300 takeown.exe 944 icacls.exe - Enumerates connected drives 3 TTPs 47 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\A: msiexec.exe \??\F:\ msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\N: 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) \??\K: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\E: msiexec.exe - File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
- Drops file in Program Files directory 6 IoCs
description ioc Process File created C:\Program Files (x86)\Def Group\PC Defender\uninstall.bat msiexec.exe File created C:\Program Files (x86)\Def Group\PC Defender\proccheck.exe msiexec.exe File created C:\Program Files (x86)\Def Group\PC Defender\rundelay.exe msiexec.exe File created C:\Program Files (x86)\Def Group\PC Defender\prockill64.exe msiexec.exe File created C:\Program Files (x86)\Def Group\PC Defender\prockill32.exe msiexec.exe File created C:\Program Files (x86)\Def Group\PC Defender\pcdef.exe msiexec.exe - Drops file in Windows directory 12 IoCs
description ioc Process File created C:\Windows\Installer\{456A3B12-8FE6-41AE-9E5C-5E55F0712C09}\_368235FAFDAA3CD0178CB7.exe msiexec.exe File created C:\Windows\Installer\e59c078.msi msiexec.exe File opened for modification C:\Windows\Installer\e59c078.msi 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\{456A3B12-8FE6-41AE-9E5C-5E55F0712C09}\_368235FAFDAA3CD0178CB7.exe msiexec.exe File created C:\Windows\Installer\e59c07c.msi msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File created C:\Windows\Installer\SourceHash{456A3B12-8FE6-41AE-9E5C-5E55F0712C09} msiexec.exe File opened for modification C:\Windows\Installer\MSIC1A0.tmp msiexec.exe File created C:\Windows\Installer\{456A3B12-8FE6-41AE-9E5C-5E55F0712C09}\_FC03FB89D84E75F2C05EA5.exe msiexec.exe File opened for modification C:\Windows\Installer\{456A3B12-8FE6-41AE-9E5C-5E55F0712C09}\_FC03FB89D84E75F2C05EA5.exe msiexec.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
pid Process 1816 msiexec.exe - Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 1824 cmd.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MsiExec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundelay.exe - Checks SCSI registry key(s) 3 TTPs 5 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process 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 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 - Modifies data under HKEY_USERS 17 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\28 msiexec.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\RunOnce MsiExec.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\RunOnce\delrstrui = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CWGCXEJBAUNBMSZ.bat" MsiExec.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" MsiExec.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" rundelay.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" rundelay.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows Script\Settings\JITDebug = "0" MsiExec.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ MsiExec.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ rundelay.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" rundelay.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows Script\Settings 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 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" MsiExec.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" rundelay.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" MsiExec.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" MsiExec.exe - Modifies registry class 64 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\AdvertiseFlags = "388" reg.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Clients = 3a0000000000 reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\ProductName = "PC Defender" msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Media reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\AuthorizedLUAApp = "0" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_ reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\ProductName = "PC Defender" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Net reg.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290 reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290 msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\SourceList\Net msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\SourceList\Media msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\ProductName = "PC Defender" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Version = "33554432" reg.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Clients = 3a0000000000 reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Assignment = "1" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\InstanceType = "0" reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Media\1 = ";" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\Language = "1033" msiexec.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\Clients = 3a0000000000 msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_ reg.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\SourceList\Media reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\DeploymentFlags = "3" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Language = "1033" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Version = "33554432" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\DeploymentFlags = "3" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\AdvertiseFlags = "388" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Language = "1033" reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\InstanceType = "0" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\InstanceType = "0" reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Media\1 = ";" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\AuthorizedLUAApp = "0" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\9E6DD28BF81ED654F84A0E1B229F9D5B\21B3A6546EF8EA14E9C5E5550F17C290 msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\PackageName = "[email protected]" reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\ProductName = "PC Defender" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Assignment = "1" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Language = "1033" reg.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\SourceList\Net reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\9E6DD28BF81ED654F84A0E1B229F9D5B msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\SourceList msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\PackageCode = "793E8A3EDC915D546911442ABED08716" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\InstanceType = "0" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\AuthorizedLUAApp = "0" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Media reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\PackageName = "[email protected]" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\21B3A6546EF8EA14E9C5E5550F17C290 msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\21B3A6546EF8EA14E9C5E5550F17C290\DefaultFeature msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\AdvertiseFlags = "388" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\Assignment = "1" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\AdvertiseFlags = "388" reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\PackageName = "[email protected]" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Net reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\Assignment = "1" msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Media\1 = ";" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_\SourceList\Media reg.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\SourceList reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\AuthorizedLUAApp = "0" msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290\SourceList\Media\1 = ";" msiexec.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3464 msiexec.exe 3464 msiexec.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 1816 msiexec.exe Token: SeIncreaseQuotaPrivilege 1816 msiexec.exe Token: SeSecurityPrivilege 3464 msiexec.exe Token: SeCreateTokenPrivilege 1816 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1816 msiexec.exe Token: SeLockMemoryPrivilege 1816 msiexec.exe Token: SeIncreaseQuotaPrivilege 1816 msiexec.exe Token: SeMachineAccountPrivilege 1816 msiexec.exe Token: SeTcbPrivilege 1816 msiexec.exe Token: SeSecurityPrivilege 1816 msiexec.exe Token: SeTakeOwnershipPrivilege 1816 msiexec.exe Token: SeLoadDriverPrivilege 1816 msiexec.exe Token: SeSystemProfilePrivilege 1816 msiexec.exe Token: SeSystemtimePrivilege 1816 msiexec.exe Token: SeProfSingleProcessPrivilege 1816 msiexec.exe Token: SeIncBasePriorityPrivilege 1816 msiexec.exe Token: SeCreatePagefilePrivilege 1816 msiexec.exe Token: SeCreatePermanentPrivilege 1816 msiexec.exe Token: SeBackupPrivilege 1816 msiexec.exe Token: SeRestorePrivilege 1816 msiexec.exe Token: SeShutdownPrivilege 1816 msiexec.exe Token: SeDebugPrivilege 1816 msiexec.exe Token: SeAuditPrivilege 1816 msiexec.exe Token: SeSystemEnvironmentPrivilege 1816 msiexec.exe Token: SeChangeNotifyPrivilege 1816 msiexec.exe Token: SeRemoteShutdownPrivilege 1816 msiexec.exe Token: SeUndockPrivilege 1816 msiexec.exe Token: SeSyncAgentPrivilege 1816 msiexec.exe Token: SeEnableDelegationPrivilege 1816 msiexec.exe Token: SeManageVolumePrivilege 1816 msiexec.exe Token: SeImpersonatePrivilege 1816 msiexec.exe Token: SeCreateGlobalPrivilege 1816 msiexec.exe Token: SeBackupPrivilege 2112 vssvc.exe Token: SeRestorePrivilege 2112 vssvc.exe Token: SeAuditPrivilege 2112 vssvc.exe Token: SeBackupPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe Token: SeTakeOwnershipPrivilege 3464 msiexec.exe Token: SeRestorePrivilege 3464 msiexec.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1816 msiexec.exe 1816 msiexec.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3464 wrote to memory of 1700 3464 msiexec.exe 102 PID 3464 wrote to memory of 3540 3464 msiexec.exe 104 PID 3540 wrote to memory of 1372 3540 MsiExec.exe 110 PID 3540 wrote to memory of 204 3540 MsiExec.exe 112 PID 3540 wrote to memory of 4744 3540 MsiExec.exe 114 PID 3540 wrote to memory of 332 3540 MsiExec.exe 116 PID 3540 wrote to memory of 1824 3540 MsiExec.exe 118 PID 3540 wrote to memory of 1988 3540 MsiExec.exe 120 PID 1988 wrote to memory of 4680 1988 rundelay.exe 122 - Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\[email protected]1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1816
-
C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- 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:3464 -
C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:22⤵PID:1700
-
-
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding E9F5C286E626BBDC83AA70ED6655E9B1 E Global\MSI00002⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Windows\SysWOW64\reg.exe"C:\Windows\SysWOW64\reg.exe" COPY HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290 HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_ /s /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:1372
-
-
C:\Windows\SysWOW64\reg.exe"C:\Windows\SysWOW64\reg.exe" COPY HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290 HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_ /s /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:204
-
-
C:\Windows\SysWOW64\reg.exe"C:\Windows\SysWOW64\reg.exe" COPY HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290 HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290_ /s /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:4744
-
-
C:\Windows\SysWOW64\reg.exe"C:\Windows\SysWOW64\reg.exe" DELETE HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\21B3A6546EF8EA14E9C5E5550F17C290 /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:332
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\SysWOW64\cmd.exe" /C "DEL /F /Q C:\Windows\Prefetch\pcdef*"3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:1824
-
-
C:\Program Files (x86)\Def Group\PC Defender\rundelay.exe"C:\Program Files (x86)\Def Group\PC Defender\rundelay.exe" "shutdown -r -t 0"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Program Files (x86)\Def Group\PC Defender\rundelay.exe"C:\Program Files (x86)\Def Group\PC Defender\rundelay.exe" "shutdown -r -t 0" 14⤵
- Executes dropped EXE
PID:4680
-
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:2112
-
C:\Windows\system32\takeown.exetakeown /f "C:\Windows\System32\rstrui.exe"1⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1300
-
C:\Windows\system32\icacls.exeicacls "C:\Windows\System32\rstrui.exe" /grant Admin:F1⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:944
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Event Triggered Execution
1Installer Packages
1Privilege Escalation
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Event Triggered Execution
1Installer Packages
1Defense Evasion
File and Directory Permissions Modification
2Windows File and Directory Permissions Modification
1Modify Registry
1System Binary Proxy Execution
1Msiexec
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Config.Msi\e59c07b.rbs
- Size 14KB
- SHA256 6a22cb5bad7c5589d1f21056b34807f5137cc67da3479fd1256a76fd16bf8e4d
- MD5 be7f3f754f1cf4b0d4eca2dc252d25d9
- SHA1 95cf5c23662449291dceee6d8891d8ab5b559170
- SHA512 4ba452feaf868ac6bd84e0570c33604cdbc50d2623d6943049556ee6cf1786476139c4e019af40c82fb67403fe63d74e738333bf3b7f4519e4bd47908a635c22
- SSDEEP 384:INkN7Ep0NkRpRi2i2iohHDQuSyGDSyGmbb:INRp++Dbsf
- TLSH T1F562B301B52286F3E5622B35C71A2E267FB2D3D99254520F36CCD471DF126891BBC2EE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files (x86)\Def Group\PC Defender\rundelay.exe
- Size 43KB
- SHA256 0d58d2b03e3f6d5f32216e74badae8ad0d7f94cc4f207d06883ba953a1594cba
- MD5 c05ccc260692e8bfb5b6ba7238dbb943
- SHA1 4ad185a7acb1c4ffcb3c03daa77cc77a833ae7e6
- SHA512 7707d1c3f9085a710527e2d1559c8268ca3a1fb70fca9f1cf391a02cd81002193c6971cefd7b00b371e14adf5ae7b83b63206b88ead13b04a20ad08c7154ac22
- SSDEEP 768:rbc3VfZE4TghNr1GHRJhPuEDA8nBTFmucFka:rbczEPNr1QPnBAFka
- TLSH T13F135A1235E1C072D4626A380938D7B19BBFB852627480DE2B88D17E9FB17C1DF7935A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\Installer\e59c078.msi
- Size 860KB
- SHA256 df2e3b2222dcdbb5e0dbdd1200ec8fd5f67fcbea99e0023df54307eab60030ff
- MD5 b3dce5c3f95a18fd076fad0f73bb9e39
- SHA1 e80cc285a77302ee221f47e4e94823d4b2eba368
- SHA512 c184436055cf74884ad0d2bd5ca00bcd5a62d6be46253fe8c71b4daaa5c710b9df34af1b6e41f6d1af94bcdec0d33679a6a1b34bf9755678b4e177f368c11d4c
- SSDEEP 24576:TkRBL2LYcyvue73Ze+RrM31N0vhMN0T4+ZI:TkRBLgiue73Ze+SWI+Z
- TLSH T12615222EFE384732C0471270664FDBA44B6AAC18275399233289791D3D327B466F79ED
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
- Size 24.1MB
- SHA256 91eef2a75906d0d19c2f7dd672b3b46b5c7eb8e931d75e72d5fbf187e8e61a8a
- MD5 441b3b6660abc0745ad0937a1c55cef7
- SHA1 a1784830ca1425c6d4fba0daba5e072a44ea8d2c
- SHA512 40ee765770bacb5f0885ecc078b69c33d6cc15284ed2bd276d6166269ec94180707cc3885420ceea3a1cbfa98529f06ac5060808fd277fedccb0b281560d5b67
- SSDEEP 24576:lu8m+1zodoO/vvTL7W6O/m6u7jkTSlKSGsWtIl71SEKr+9znovlzC8Rxv:i
- TLSH T1BD47C32436F92210F7F79E3CA8F46A23493A7D5B9C259E8D05411B4E0921FB1E872F5B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path \??\Volume{ba718129-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{ffa2105e-7b6b-404b-b331-97ec61bb2894}_OnDiskSnapshotProp
- Size 6KB
- SHA256 a82db12c3e31ad3a287cdd3c3e89993e2a7db9dda8aeb53e68dd35e0dfccd0e0
- MD5 f0bbfb1ed87088dd5d3826ee9d6e71a9
- SHA1 17c6cbf1b1176e8fc1c2c66aff69ccfd03856e51
- SHA512 8d2375e4e29cef1cb4a50c0f7dbe0b44366b4a62edf4bc9e856d4751a38851427da55890c92c81d85af47770e8eeb80801b85daeefb8d54d8c0f1658e199f302
- SSDEEP 96:FOwKZzmvc8DD84LTHzbOHXOHBlBRQ88Sc9XE56tOSVQpu:gw5b++ZVm
- TLSH T180D188085AE54311F2B3AB7129F18557A877B911EF33CB8E0298638E6670A10F875F5F
- MD5 SHA1 SHA512 SSDEEP TLSH