12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe

Windows security bypass 2 TTPs 1 IoCs

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe

Windows security modification 2 TTPs 1 IoCs

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\firewall.exe = "C:\\Users\\Admin\\AppData\\Roaming\\firewall.exe"	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1184 set thread context of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{6C065871-510C-11ED-8C11-42FEA5F7B9B2} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373099918"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d3b98f5693c0d24b85f349229339c59c00000000020000000000106600000001000020000000a823b648b4e5ffeddc96bb072476a6bc1bad7957c4839e62f7c549e91e9b1ab4000000000e8000000002000020000000be663e2d2620b15693e972316fb2bae78631d4f70c06f7ef4d7b2c2faceeb2a420000000b3da202b28ff3f9dc3f69d60acd84ea268386a3734407203cf8e845c65b7620540000000a2aeb54392fd5fc39f03d3ec50cd6c3b8625f9d55cc310e867868f740ae5fab881ada08c3f7ce007b437112b8ce2d9cd0c341d85a2d4136fcc4f64b4b14bcd2f	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 908e5d7819e5d801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeBackupPrivilege	1772	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1408	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe
1772	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe
1408	iexplore.exe
1408	iexplore.exe
648	IEXPLORE.EXE
648	IEXPLORE.EXE
648	IEXPLORE.EXE
648	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1184 wrote to memory of 1772	1184	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	26
PID 1772 wrote to memory of 1408	1772	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	27
PID 1772 wrote to memory of 1408	1772	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	27
PID 1772 wrote to memory of 1408	1772	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	27
PID 1772 wrote to memory of 1408	1772	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe	27
PID 1408 wrote to memory of 648	1408	iexplore.exe	29
PID 1408 wrote to memory of 648	1408	iexplore.exe	29
PID 1408 wrote to memory of 648	1408	iexplore.exe	29
PID 1408 wrote to memory of 648	1408	iexplore.exe	29

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"	12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe

C:\Users\Admin\AppData\Local\Temp\12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe
"C:\Users\Admin\AppData\Local\Temp\12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe
  "C:\Users\Admin\AppData\Local\Temp\12bffed9dcafd95682c6ea71674ed5e080a9215c54db1c947f8ebbf51c49e6b0.exe"
  2⤵
  - UAC bypass
  - Windows security bypass
  - Drops file in Drivers directory
  - Windows security modification
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:1772
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" http://www.sonico.com/postales/view.php?cid=27608078&se=pahola.glachavez%40hotmail.es&db=10&t=ecards_sonico&ss=1&etid=pstlview
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1408
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1408 CREDAT:275457 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:648

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

Modify Registry