Analysis
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max time kernel
102s -
max time network
30s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
12-05-2021 18:45
Static task
static1
Behavioral task
behavioral1
Sample
aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe
Resource
win7v20210410
General
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Target
aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.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 1852 564 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 2096 bcdedit.exe 2108 bcdedit.exe -
Executes dropped EXE 3 IoCs
pid Process 1732 7za.exe 436 2D4F861D8D.exe 1456 2D4F861D8D.exe -
resource yara_rule behavioral1/memory/1456-84-0x0000000000400000-0x0000000000E28000-memory.dmp upx behavioral1/memory/1456-90-0x0000000000400000-0x000000000041A000-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 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 436 2D4F861D8D.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 436 set thread context of 1456 436 2D4F861D8D.exe 43 -
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 956 vssadmin.exe -
description ioc Process 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 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 (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 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\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" 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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 316 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 436 2D4F861D8D.exe 1456 2D4F861D8D.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeImpersonatePrivilege 1456 2D4F861D8D.exe Token: SeTcbPrivilege 1456 2D4F861D8D.exe Token: SeChangeNotifyPrivilege 1456 2D4F861D8D.exe Token: SeCreateTokenPrivilege 1456 2D4F861D8D.exe Token: SeBackupPrivilege 1456 2D4F861D8D.exe Token: SeRestorePrivilege 1456 2D4F861D8D.exe Token: SeIncreaseQuotaPrivilege 1456 2D4F861D8D.exe Token: SeAssignPrimaryTokenPrivilege 1456 2D4F861D8D.exe Token: SeIncreaseQuotaPrivilege 1284 WMIC.exe Token: SeSecurityPrivilege 1284 WMIC.exe Token: SeTakeOwnershipPrivilege 1284 WMIC.exe Token: SeLoadDriverPrivilege 1284 WMIC.exe Token: SeSystemProfilePrivilege 1284 WMIC.exe Token: SeSystemtimePrivilege 1284 WMIC.exe Token: SeProfSingleProcessPrivilege 1284 WMIC.exe Token: SeIncBasePriorityPrivilege 1284 WMIC.exe Token: SeCreatePagefilePrivilege 1284 WMIC.exe Token: SeBackupPrivilege 1284 WMIC.exe Token: SeRestorePrivilege 1284 WMIC.exe Token: SeShutdownPrivilege 1284 WMIC.exe Token: SeDebugPrivilege 1284 WMIC.exe Token: SeSystemEnvironmentPrivilege 1284 WMIC.exe Token: SeRemoteShutdownPrivilege 1284 WMIC.exe Token: SeUndockPrivilege 1284 WMIC.exe Token: SeManageVolumePrivilege 1284 WMIC.exe Token: 33 1284 WMIC.exe Token: 34 1284 WMIC.exe Token: 35 1284 WMIC.exe Token: SeIncreaseQuotaPrivilege 1284 WMIC.exe Token: SeSecurityPrivilege 1284 WMIC.exe Token: SeTakeOwnershipPrivilege 1284 WMIC.exe Token: SeLoadDriverPrivilege 1284 WMIC.exe Token: SeSystemProfilePrivilege 1284 WMIC.exe Token: SeSystemtimePrivilege 1284 WMIC.exe Token: SeProfSingleProcessPrivilege 1284 WMIC.exe Token: SeIncBasePriorityPrivilege 1284 WMIC.exe Token: SeCreatePagefilePrivilege 1284 WMIC.exe Token: SeBackupPrivilege 1284 WMIC.exe Token: SeRestorePrivilege 1284 WMIC.exe Token: SeShutdownPrivilege 1284 WMIC.exe Token: SeDebugPrivilege 1284 WMIC.exe Token: SeSystemEnvironmentPrivilege 1284 WMIC.exe Token: SeRemoteShutdownPrivilege 1284 WMIC.exe Token: SeUndockPrivilege 1284 WMIC.exe Token: SeManageVolumePrivilege 1284 WMIC.exe Token: 33 1284 WMIC.exe Token: 34 1284 WMIC.exe Token: 35 1284 WMIC.exe Token: SeBackupPrivilege 1596 vssvc.exe Token: SeRestorePrivilege 1596 vssvc.exe Token: SeAuditPrivilege 1596 vssvc.exe Token: SeImpersonatePrivilege 1456 2D4F861D8D.exe Token: SeTcbPrivilege 1456 2D4F861D8D.exe Token: SeChangeNotifyPrivilege 1456 2D4F861D8D.exe Token: SeCreateTokenPrivilege 1456 2D4F861D8D.exe Token: SeBackupPrivilege 1456 2D4F861D8D.exe Token: SeRestorePrivilege 1456 2D4F861D8D.exe Token: SeIncreaseQuotaPrivilege 1456 2D4F861D8D.exe Token: SeAssignPrimaryTokenPrivilege 1456 2D4F861D8D.exe Token: SeImpersonatePrivilege 1456 2D4F861D8D.exe Token: SeTcbPrivilege 1456 2D4F861D8D.exe Token: SeChangeNotifyPrivilege 1456 2D4F861D8D.exe Token: SeCreateTokenPrivilege 1456 2D4F861D8D.exe Token: SeBackupPrivilege 1456 2D4F861D8D.exe -
Suspicious use of SetWindowsHookEx 18 IoCs
pid Process 436 2D4F861D8D.exe 436 2D4F861D8D.exe 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE 316 WINWORD.EXE -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1116 wrote to memory of 1212 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 26 PID 1116 wrote to memory of 1212 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 26 PID 1116 wrote to memory of 1212 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 26 PID 1116 wrote to memory of 1212 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 26 PID 1116 wrote to memory of 1912 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 28 PID 1116 wrote to memory of 1912 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 28 PID 1116 wrote to memory of 1912 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 28 PID 1116 wrote to memory of 1912 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 28 PID 1116 wrote to memory of 1748 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 30 PID 1116 wrote to memory of 1748 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 30 PID 1116 wrote to memory of 1748 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 30 PID 1116 wrote to memory of 1748 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 30 PID 1116 wrote to memory of 1732 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 32 PID 1116 wrote to memory of 1732 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 32 PID 1116 wrote to memory of 1732 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 32 PID 1116 wrote to memory of 1732 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 32 PID 1116 wrote to memory of 784 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 35 PID 1116 wrote to memory of 784 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 35 PID 1116 wrote to memory of 784 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 35 PID 1116 wrote to memory of 784 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 35 PID 1116 wrote to memory of 316 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 37 PID 1116 wrote to memory of 316 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 37 PID 1116 wrote to memory of 316 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 37 PID 1116 wrote to memory of 316 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 37 PID 1116 wrote to memory of 524 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 38 PID 1116 wrote to memory of 524 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 38 PID 1116 wrote to memory of 524 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 38 PID 1116 wrote to memory of 524 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 38 PID 1116 wrote to memory of 436 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 40 PID 1116 wrote to memory of 436 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 40 PID 1116 wrote to memory of 436 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 40 PID 1116 wrote to memory of 436 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 40 PID 1116 wrote to memory of 1304 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 41 PID 1116 wrote to memory of 1304 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 41 PID 1116 wrote to memory of 1304 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 41 PID 1116 wrote to memory of 1304 1116 aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe 41 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 436 wrote to memory of 1456 436 2D4F861D8D.exe 43 PID 1456 wrote to memory of 1908 1456 2D4F861D8D.exe 46 PID 1456 wrote to memory of 1908 1456 2D4F861D8D.exe 46 PID 1456 wrote to memory of 1908 1456 2D4F861D8D.exe 46 PID 1456 wrote to memory of 1908 1456 2D4F861D8D.exe 46 PID 1456 wrote to memory of 1284 1456 2D4F861D8D.exe 47 PID 1456 wrote to memory of 1284 1456 2D4F861D8D.exe 47 PID 1456 wrote to memory of 1284 1456 2D4F861D8D.exe 47 PID 1456 wrote to memory of 1284 1456 2D4F861D8D.exe 47 PID 1852 wrote to memory of 956 1852 cmd.exe 55 PID 1852 wrote to memory of 956 1852 cmd.exe 55 PID 1852 wrote to memory of 956 1852 cmd.exe 55 PID 1852 wrote to memory of 2096 1852 cmd.exe 59 PID 1852 wrote to memory of 2096 1852 cmd.exe 59 PID 1852 wrote to memory of 2096 1852 cmd.exe 59 PID 1852 wrote to memory of 2108 1852 cmd.exe 60 PID 1852 wrote to memory of 2108 1852 cmd.exe 60 PID 1852 wrote to memory of 2108 1852 cmd.exe 60
Processes
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C:\Users\Admin\AppData\Local\Temp\aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe"C:\Users\Admin\AppData\Local\Temp\aadde71205336ccdd048f0b5029becbbcd03e741045f406b2fa819b909809202.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1116 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:1212
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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:1912
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:1748
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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:1732
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:784
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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:316 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵PID:2152
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:524
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C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"C:\Users\Admin\AppData\Local\Temp\2D4F861D8D.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:436 -
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:1456 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\VAULT.hta"4⤵
- Modifies Internet Explorer settings
PID:1908
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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:1284
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 2D4F861D8DCF8C8F2⤵PID:1304
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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:1852 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:956
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C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} recoveryenabled no2⤵
- Modifies boot configuration data using bcdedit
PID:2096
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C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} bootstatuspolicy ignoreallfailures2⤵
- Modifies boot configuration data using bcdedit
PID:2108
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1596