Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
08-05-2021 13:01
Static task
static1
Behavioral task
behavioral1
Sample
AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe
Resource
win7v20210410
General
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Target
AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe
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Size
444KB
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MD5
fd442753c3895d868eed72f7854e2fba
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SHA1
477dc12f213dd05a15b61207926b478d3a0d04c7
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SHA256
aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202
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SHA512
1a7ff91196019abe9dfa93bfaca299ecd87693ef173560951b4d55f9d0c66355535bef724de26865205419e7638e57c762e332d7eff85187e9695f0a92e1d0c2
Malware Config
Signatures
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CrypVault
Ransomware family which makes encrypted files look like they have been quarantined by AV.
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1080 1936 cmd.exe 52 -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 988 bcdedit.exe 212 bcdedit.exe -
Executes dropped EXE 3 IoCs
pid Process 1688 7za.exe 1476 2D4F861D8D.exe 1728 2D4F861D8D.exe -
resource yara_rule behavioral1/memory/1728-84-0x0000000000400000-0x0000000000E28000-memory.dmp upx behavioral1/memory/1728-89-0x0000000000400000-0x000000000041A000-memory.dmp upx -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VAULT.hta 2D4F861D8D.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VAULT.hta 2D4F861D8D.exe -
Loads dropped DLL 5 IoCs
pid Process 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 1476 vssadmin.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1476 set thread context of 1728 1476 vssadmin.exe 45 -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Office loads VBA resources, possible macro or embedded object present
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1476 vssadmin.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main mshta.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 384 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1476 vssadmin.exe 1728 2D4F861D8D.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeImpersonatePrivilege 1728 2D4F861D8D.exe Token: SeTcbPrivilege 1728 2D4F861D8D.exe Token: SeChangeNotifyPrivilege 1728 2D4F861D8D.exe Token: SeCreateTokenPrivilege 1728 2D4F861D8D.exe Token: SeBackupPrivilege 1728 2D4F861D8D.exe Token: SeRestorePrivilege 1728 2D4F861D8D.exe Token: SeIncreaseQuotaPrivilege 1728 2D4F861D8D.exe Token: SeAssignPrimaryTokenPrivilege 1728 2D4F861D8D.exe Token: SeIncreaseQuotaPrivilege 324 WMIC.exe Token: SeSecurityPrivilege 324 WMIC.exe Token: SeTakeOwnershipPrivilege 324 WMIC.exe Token: SeLoadDriverPrivilege 324 WMIC.exe Token: SeSystemProfilePrivilege 324 WMIC.exe Token: SeSystemtimePrivilege 324 WMIC.exe Token: SeProfSingleProcessPrivilege 324 WMIC.exe Token: SeIncBasePriorityPrivilege 324 WMIC.exe Token: SeCreatePagefilePrivilege 324 WMIC.exe Token: SeBackupPrivilege 324 WMIC.exe Token: SeRestorePrivilege 324 WMIC.exe Token: SeShutdownPrivilege 324 WMIC.exe Token: SeDebugPrivilege 324 WMIC.exe Token: SeSystemEnvironmentPrivilege 324 WMIC.exe Token: SeRemoteShutdownPrivilege 324 WMIC.exe Token: SeUndockPrivilege 324 WMIC.exe Token: SeManageVolumePrivilege 324 WMIC.exe Token: 33 324 WMIC.exe Token: 34 324 WMIC.exe Token: 35 324 WMIC.exe Token: SeIncreaseQuotaPrivilege 324 WMIC.exe Token: SeSecurityPrivilege 324 WMIC.exe Token: SeTakeOwnershipPrivilege 324 WMIC.exe Token: SeLoadDriverPrivilege 324 WMIC.exe Token: SeSystemProfilePrivilege 324 WMIC.exe Token: SeSystemtimePrivilege 324 WMIC.exe Token: SeProfSingleProcessPrivilege 324 WMIC.exe Token: SeIncBasePriorityPrivilege 324 WMIC.exe Token: SeCreatePagefilePrivilege 324 WMIC.exe Token: SeBackupPrivilege 324 WMIC.exe Token: SeRestorePrivilege 324 WMIC.exe Token: SeShutdownPrivilege 324 WMIC.exe Token: SeDebugPrivilege 324 WMIC.exe Token: SeSystemEnvironmentPrivilege 324 WMIC.exe Token: SeRemoteShutdownPrivilege 324 WMIC.exe Token: SeUndockPrivilege 324 WMIC.exe Token: SeManageVolumePrivilege 324 WMIC.exe Token: 33 324 WMIC.exe Token: 34 324 WMIC.exe Token: 35 324 WMIC.exe Token: SeBackupPrivilege 1328 vssvc.exe Token: SeRestorePrivilege 1328 vssvc.exe Token: SeAuditPrivilege 1328 vssvc.exe Token: SeImpersonatePrivilege 1728 2D4F861D8D.exe Token: SeTcbPrivilege 1728 2D4F861D8D.exe Token: SeChangeNotifyPrivilege 1728 2D4F861D8D.exe Token: SeCreateTokenPrivilege 1728 2D4F861D8D.exe Token: SeBackupPrivilege 1728 2D4F861D8D.exe Token: SeRestorePrivilege 1728 2D4F861D8D.exe Token: SeIncreaseQuotaPrivilege 1728 2D4F861D8D.exe Token: SeAssignPrimaryTokenPrivilege 1728 2D4F861D8D.exe Token: SeImpersonatePrivilege 1728 2D4F861D8D.exe Token: SeTcbPrivilege 1728 2D4F861D8D.exe Token: SeChangeNotifyPrivilege 1728 2D4F861D8D.exe Token: SeCreateTokenPrivilege 1728 2D4F861D8D.exe Token: SeBackupPrivilege 1728 2D4F861D8D.exe -
Suspicious use of SetWindowsHookEx 18 IoCs
pid Process 1476 2D4F861D8D.exe 1476 2D4F861D8D.exe 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE 384 WINWORD.EXE -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1088 wrote to memory of 1704 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 29 PID 1088 wrote to memory of 1704 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 29 PID 1088 wrote to memory of 1704 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 29 PID 1088 wrote to memory of 1704 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 29 PID 1088 wrote to memory of 608 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 31 PID 1088 wrote to memory of 608 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 31 PID 1088 wrote to memory of 608 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 31 PID 1088 wrote to memory of 608 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 31 PID 1088 wrote to memory of 1652 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 33 PID 1088 wrote to memory of 1652 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 33 PID 1088 wrote to memory of 1652 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 33 PID 1088 wrote to memory of 1652 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 33 PID 1088 wrote to memory of 1688 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 35 PID 1088 wrote to memory of 1688 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 35 PID 1088 wrote to memory of 1688 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 35 PID 1088 wrote to memory of 1688 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 35 PID 1088 wrote to memory of 1312 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 37 PID 1088 wrote to memory of 1312 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 37 PID 1088 wrote to memory of 1312 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 37 PID 1088 wrote to memory of 1312 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 37 PID 1088 wrote to memory of 384 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 39 PID 1088 wrote to memory of 384 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 39 PID 1088 wrote to memory of 384 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 39 PID 1088 wrote to memory of 384 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 39 PID 1088 wrote to memory of 616 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 40 PID 1088 wrote to memory of 616 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 40 PID 1088 wrote to memory of 616 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 40 PID 1088 wrote to memory of 616 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 40 PID 1088 wrote to memory of 1476 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 42 PID 1088 wrote to memory of 1476 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 42 PID 1088 wrote to memory of 1476 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 42 PID 1088 wrote to memory of 1476 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 42 PID 1088 wrote to memory of 816 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 43 PID 1088 wrote to memory of 816 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 43 PID 1088 wrote to memory of 816 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 43 PID 1088 wrote to memory of 816 1088 AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe 43 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1476 wrote to memory of 1728 1476 vssadmin.exe 45 PID 1728 wrote to memory of 1592 1728 2D4F861D8D.exe 47 PID 1728 wrote to memory of 1592 1728 2D4F861D8D.exe 47 PID 1728 wrote to memory of 1592 1728 2D4F861D8D.exe 47 PID 1728 wrote to memory of 1592 1728 2D4F861D8D.exe 47 PID 1728 wrote to memory of 324 1728 2D4F861D8D.exe 49 PID 1728 wrote to memory of 324 1728 2D4F861D8D.exe 49 PID 1728 wrote to memory of 324 1728 2D4F861D8D.exe 49 PID 1728 wrote to memory of 324 1728 2D4F861D8D.exe 49 PID 1080 wrote to memory of 1476 1080 cmd.exe 55 PID 1080 wrote to memory of 1476 1080 cmd.exe 55 PID 1080 wrote to memory of 1476 1080 cmd.exe 55 PID 1080 wrote to memory of 988 1080 cmd.exe 58 PID 1080 wrote to memory of 988 1080 cmd.exe 58 PID 1080 wrote to memory of 988 1080 cmd.exe 58 PID 1080 wrote to memory of 212 1080 cmd.exe 59 PID 1080 wrote to memory of 212 1080 cmd.exe 59 PID 1080 wrote to memory of 212 1080 cmd.exe 59
Processes
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C:\Users\Admin\AppData\Local\Temp\AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe"C:\Users\Admin\AppData\Local\Temp\AADDE71205336CCDD048F0B5029BECBBCD03E741045F4.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1088 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:1704
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ren "C:\Users\Admin\AppData\Local\Temp\CF8C8F" 7za.exe2⤵PID:608
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:1652
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C:\Users\Admin\AppData\Local\Temp\7za.exe"C:\Users\Admin\AppData\Local\Temp\7za.exe" e "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D" -y -p2D4F861D8D2⤵
- Executes dropped EXE
PID:1688
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:1312
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.doc"2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:384
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:616
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C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1476 -
C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"3⤵
- Executes dropped EXE
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\VAULT.hta"4⤵
- Modifies Internet Explorer settings
PID:1592
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C:\Windows\SysWOW64\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" process call create "cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures"4⤵
- Suspicious use of AdjustPrivilegeToken
PID:324
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:816
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C:\Windows\system32\cmd.execmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1080 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Interacts with shadow copies
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1476
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C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} recoveryenabled no2⤵
- Modifies boot configuration data using bcdedit
PID:988
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C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} bootstatuspolicy ignoreallfailures2⤵
- Modifies boot configuration data using bcdedit
PID:212
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1328