15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe

Windows security bypass 2 TTPs 2 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe = "0"	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe = "0"	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1716 set thread context of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 3007a6fa7df6d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "3"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000002bccc567d90a0b479b49b1b2d43318c3000000000200000000001066000000010000200000003c3ff375c50185eca09db8437e983334edff30a720c9f5997ac7ca9d3a2f87f3000000000e8000000002000020000000c8c9c202f5497e79cdfe8b523199aa6f6ffe67fc35b0a4e6e26235529303079a20000000dcf818ca9a088903917900e3537c0201a8d0b44328c4ee04e075e7289ae70b4b40000000eff017149505feaf26f2145932468a2e68678adac38aac4dc0718012be96340a3d1909bbf45e2847b5e862d31b88a6bb322d5ad2206b8eeb2204324613d5bd3e	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "402556728"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{251A6791-6271-11EE-8DA3-C6004B6B9118} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2312	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2624	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2312	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2624	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2624	iexplore.exe
2624	iexplore.exe
2516	IEXPLORE.EXE
2516	IEXPLORE.EXE
2516	IEXPLORE.EXE
2516	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2312	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	28
PID 1716 wrote to memory of 2312	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	28
PID 1716 wrote to memory of 2312	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	28
PID 1716 wrote to memory of 2312	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	28
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 1716 wrote to memory of 2596	1716	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe	30
PID 2596 wrote to memory of 2624	2596	aspnet_wp.exe	31
PID 2596 wrote to memory of 2624	2596	aspnet_wp.exe	31
PID 2596 wrote to memory of 2624	2596	aspnet_wp.exe	31
PID 2596 wrote to memory of 2624	2596	aspnet_wp.exe	31
PID 2624 wrote to memory of 2516	2624	iexplore.exe	33
PID 2624 wrote to memory of 2516	2624	iexplore.exe	33
PID 2624 wrote to memory of 2516	2624	iexplore.exe	33
PID 2624 wrote to memory of 2516	2624	iexplore.exe	33

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe

C:\Users\Admin\AppData\Local\Temp\15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe
"C:\Users\Admin\AppData\Local\Temp\15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe"
1⤵
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1716
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\15d27c669c13bcb799ef7b656ee45944469650b8c2821de397d3dc4ae9740f67.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2312
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=aspnet_wp.exe&platform=0009&osver=5&isServer=0&shimver=4.0.30319.0
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2624
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2624 CREDAT:275457 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry