Analysis
- max time kernel
149s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
26/10/2026, 19:07
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
PC_Bypass.msi
Resource
win10v2004-20260911-en
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
PC_Bypass.msi
Resource
win11ltsc2024-20260911-en
15 signatures
150 seconds
General
- Target PC_Bypass.msi
- Size 7.9MB
- Sample261026-xsrcvayvf1
- SHA256 44c55dd508b04f3e9a1efbd64b577f4dc0baa07ca3a090e6e227d3dcb724aa36
- MD5 b45609ef7c74d58140bd864c13a16363
- SHA1 4d1587508f9d372e47b48017de4d43d8647204ad
- SHA512 a0863de5019920a4cb4c0592cd5be75f061d271100a856d6e51475ad9c14122899f5b04fbf53ecf75dabb97526c469fc05179967d0a48b0fe4e8b0be5404f1b8
- SSDEEP 49152:UZCKitd+vszAlozTy4g5z8+5eNBAkG8iAd4AHFphN/dBENJZvMdAem:4ihTy/OG8F4+FphN/d+lUd
- TLSH T1B986DF21B383C136D56D0177E968FE5E1938BE730B3102E777E8396E59B48C1A279B42
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000700000002446a-38.dat acprotect - Executes dropped EXE 1 IoCs
pid Process 4684 MSIB538.tmp - Loads dropped DLL 8 IoCs
pid Process 948 MsiExec.exe 948 MsiExec.exe 948 MsiExec.exe 948 MsiExec.exe 948 MsiExec.exe 4804 regsvr32.exe 3004 regsvr32.exe 1704 regsvr32.exe - Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\M: 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) \??\J: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\Q: msiexec.exe - Drops file in Windows directory 13 IoCs
description ioc Process File opened for modification C:\Windows\Installer\e58b1f6.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\MSIB35E.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIB3AD.tmp msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSIB4AA.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIB538.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIB263.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIB3BE.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIB41C.tmp msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File created C:\Windows\Installer\SourceHash{2304EDCF-6D56-4F93-B9D4-A8E20D5A41AF} msiexec.exe File created C:\Windows\Installer\e58b1f6.msi msiexec.exe - Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
pid Process 3668 msiexec.exe - System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSIB538.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MsiExec.exe - Checks SCSI registry key(s) 3 TTPs 18 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\HardwareID regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\FriendlyName regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_HL-DT-ST_DVD+-RW\4&215468A5&0&010000 regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\HardwareID regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\FriendlyName regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\HardwareID regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_HL-DT-ST_DVD+-RW\4&215468a5&0&010000\FriendlyName regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_HL-DT-ST_DVD+-RW\4&215468A5&0&010000 regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_HL-DT-ST_DVD+-RW\4&215468A5&0&010000 regsvr32.exe - Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 regsvr32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString regsvr32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 regsvr32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString regsvr32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 regsvr32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString regsvr32.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4804 regsvr32.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3444 msiexec.exe 3444 msiexec.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe 4804 regsvr32.exe - Suspicious use of AdjustPrivilegeToken 53 IoCs
description pid Process Token: SeShutdownPrivilege 3668 msiexec.exe Token: SeIncreaseQuotaPrivilege 3668 msiexec.exe Token: SeSecurityPrivilege 3444 msiexec.exe Token: SeCreateTokenPrivilege 3668 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 3668 msiexec.exe Token: SeLockMemoryPrivilege 3668 msiexec.exe Token: SeIncreaseQuotaPrivilege 3668 msiexec.exe Token: SeMachineAccountPrivilege 3668 msiexec.exe Token: SeTcbPrivilege 3668 msiexec.exe Token: SeSecurityPrivilege 3668 msiexec.exe Token: SeTakeOwnershipPrivilege 3668 msiexec.exe Token: SeLoadDriverPrivilege 3668 msiexec.exe Token: SeSystemProfilePrivilege 3668 msiexec.exe Token: SeSystemtimePrivilege 3668 msiexec.exe Token: SeProfSingleProcessPrivilege 3668 msiexec.exe Token: SeIncBasePriorityPrivilege 3668 msiexec.exe Token: SeCreatePagefilePrivilege 3668 msiexec.exe Token: SeCreatePermanentPrivilege 3668 msiexec.exe Token: SeBackupPrivilege 3668 msiexec.exe Token: SeRestorePrivilege 3668 msiexec.exe Token: SeShutdownPrivilege 3668 msiexec.exe Token: SeDebugPrivilege 3668 msiexec.exe Token: SeAuditPrivilege 3668 msiexec.exe Token: SeSystemEnvironmentPrivilege 3668 msiexec.exe Token: SeChangeNotifyPrivilege 3668 msiexec.exe Token: SeRemoteShutdownPrivilege 3668 msiexec.exe Token: SeUndockPrivilege 3668 msiexec.exe Token: SeSyncAgentPrivilege 3668 msiexec.exe Token: SeEnableDelegationPrivilege 3668 msiexec.exe Token: SeManageVolumePrivilege 3668 msiexec.exe Token: SeImpersonatePrivilege 3668 msiexec.exe Token: SeCreateGlobalPrivilege 3668 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeRestorePrivilege 3444 msiexec.exe Token: SeTakeOwnershipPrivilege 3444 msiexec.exe Token: SeDebugPrivilege 4804 regsvr32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3668 msiexec.exe 3668 msiexec.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3444 wrote to memory of 948 3444 msiexec.exe 87 PID 3444 wrote to memory of 4684 3444 msiexec.exe 88 PID 4940 wrote to memory of 4804 4940 regsvr32.exe 90 PID 1036 wrote to memory of 3004 1036 regsvr32.exe 101 PID 4688 wrote to memory of 1704 4688 regsvr32.exe 103
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\PC_Bypass.msi1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3668
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3444 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 4721C3AFE6FE6D89E0C5420C4BCA65102⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:948
-
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C:\Windows\Installer\MSIB538.tmp"C:\Windows\Installer\MSIB538.tmp" /DontWait regsvr32.exe /s /i "C:\ProgramData\ApplicationData\FC9978.dat"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4684
-
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C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s /i "C:\ProgramData\ApplicationData\FC9978.dat"1⤵
- Suspicious use of WriteProcessMemory
PID:4940 -
C:\Windows\SysWOW64\regsvr32.exe/s /i "C:\ProgramData\ApplicationData\FC9978.dat"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
- Checks processor information in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4804
-
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C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe /s /i C:\ProgramData\ApplicationData\FC9978.dat1⤵
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Windows\SysWOW64\regsvr32.exe/s /i C:\ProgramData\ApplicationData\FC9978.dat2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
- Checks processor information in registry
PID:3004
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C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe /s /i C:\ProgramData\ApplicationData\FC9978.dat1⤵
- Suspicious use of WriteProcessMemory
PID:4688 -
C:\Windows\SysWOW64\regsvr32.exe/s /i C:\ProgramData\ApplicationData\FC9978.dat2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
- Checks processor information in registry
PID:1704
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Config.Msi\e58b1f9.rbs
- Size 1KB
- SHA256 d6104880e04e7caedd9bef0a9ccc1822e28d23843849bd1f058b472faacb86e8
- MD5 150c8665732681a451f24bed66b8a5ee
- SHA1 0c06e9dd6d308ee371d07803b2b2f1af9ba196e9
- SHA512 de27b6c9c307b8ed94f1be9f3116f974c271ab4b4d53d34adfc63dc22eb7c042f64c4a5c155775c6d0ef77ad5e6889cf4daa5b7906ed73a70675370d3c6a8eee
- TLSH T1DD2103479292D5DBC6C6D0FA271176128CAE0872DBAD457F498E520D67648FC6FEC0C0
- MD5 SHA1 SHA512 TLSH
- Path C:\ProgramData\ApplicationData\FC9978.dat
- Size 1.3MB
- SHA256 f39f1fe8a9bc200b99817b422db44a1d53646f1576c1da5c9702a628c1f0e984
- MD5 3d1314cf9ae4a40df3436252e85d4114
- SHA1 9e91034c82a8019ef65ef8bb723f93ddcd1dcc0e
- SHA512 31a901ebc4c2209f926bdb9ffa851bae9c94ff4ea1c9373f9a13a2f56628abe39ad90c411d8aa5b3af67aeb232a03b41218a535badcdceab904f755b9d410ba9
- SSDEEP 24576:IpYdmw88AoIWkWgqCWBqhMw0pH/TJDE6YtaZpDjZClMb6sWMIU7iyIrm1:IpYjAtWkJ+qhMVLBENCZdbFIQiygm
- TLSH T1C95533C5A6FB2DA1F9E1077392186746134B10C02231776FABAE720FEADDD847A417B0
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\Installer\MSIB263.tmp
- Size 721KB
- SHA256 52f41817669af7ac55b1516894ee705245c3148f2997fa0e6617e9cc6353e41e
- MD5 5a1f2196056c0a06b79a77ae981c7761
- SHA1 a880ae54395658f129e24732800e207ecd0b5603
- SHA512 9afc180ebc10c0ee0d7306f4b7085608a4e69321044d474691587bf7e63f945888781a9fc5e69568d351ac690b0335214bd04bdf5c75fd8a3bd1ec4be5d3475a
- SSDEEP 6144:NNNRBgD0EottR4BKvUNBHZQCAU9m9d98HyFGsDXTuph0lhSMXlBXBW/n6JTJU5h5:NNbIUOl3HasHowph0lhSMXlesu5eNBAp
- TLSH T1F9F46B203695C03AD66E46B029BCCBAB55697E760B7254CB73C86E3A19F18C39335F13
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\Installer\MSIB538.tmp
- Size 412KB
- SHA256 428272d3077ca3091dd81f3690a9b9c607687fb31e9e4ca8a054bc94793c492d
- MD5 c2ad4a9d9cdcc2f5e44f9409748ec003
- SHA1 ddc6727a06004da7d71e25c476b14a0d8cd5f397
- SHA512 7e7e749eee884ee06c54de2e9bad71ba1ea06023ca6bc2ff857887e0a4cd873af9044197dc03236172929b9c3f9246744b0fc13e30bdee74a3c5aaf9e3ae92a9
- SSDEEP 12288:op5jy7Ntd+vszAlogMTycgQbS753HVK09N:opZy7Ntd+vszAlozTyDUS75X1N
- TLSH T195948D217A84D037D97310315FA9EABAA73DB9300F6209CBB3D46E6D0A746C25732B57
- MD5 SHA1 SHA512 SSDEEP TLSH