Analysis
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max time kernel
31s -
max time network
32s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
06-10-2024 11:50
General
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Target
GrabberBuilder.exe
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Size
3.4MB
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MD5
fb7b19adc02c514e4e396b0184fe4d5b
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SHA1
7067272c1aa7dcb9cbe37699da88e18ddcd4e616
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SHA256
56f44437618196097836457153108f24370c94cad2f078076e96221797ddff10
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SHA512
5df96dabef422b22d54a884289b80d028c8cc0d5cf095d032d5126002c04e826090f61ed549d800a28945f7afcbd7c74debcd65948de01b12463127d1750bc40
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SSDEEP
98304:pcO+IuSn/xejlEvsJyrNyPL3Prc/BJUvju+wp:tZr/2xyUPLYZJU6
Malware Config
Signatures
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SectopRAT payload 2 IoCs
resource yara_rule behavioral1/memory/2088-6-0x0000000000400000-0x0000000000D28000-memory.dmp family_sectoprat behavioral1/memory/2088-7-0x0000000000400000-0x0000000000D28000-memory.dmp family_sectoprat -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ GrabberBuilder.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion GrabberBuilder.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion GrabberBuilder.exe -
resource yara_rule behavioral1/memory/2088-6-0x0000000000400000-0x0000000000D28000-memory.dmp themida behavioral1/memory/2088-7-0x0000000000400000-0x0000000000D28000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA GrabberBuilder.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2088 GrabberBuilder.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 GrabberBuilder.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "8" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation iexplore.exe Key created \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "395196024" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\GPU\SoftwareFallback = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\GPU\SubSysId = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "268435456" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\VersionManager\FirstCheckForUpdateHighDateTime = "31135780" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListDomainAttributeSet = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\Protected - It is a violation of Windows Policy to modify. See aka.ms/browserpolicy\HomepagesUpgradeVersion = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPMigrationVer = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "9" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionHigh = "268435456" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\GPU\Revision = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\Protected - It is a violation of Windows Policy to modify. See aka.ms/browserpolicy iexplore.exe Key created \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\GPU\VendorId = "4318" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\Main\DisableFirstRunCustomize = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionLow = "395196024" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "13" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\GPU\DeviceId = "140" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000\Software\Microsoft\Internet Explorer\VersionManager\FirstCheckForUpdateLowDateTime = "2787366272" iexplore.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-970747758-134341002-3585657277-1000_Classes\Local Settings\MuiCache MiniSearchHost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2088 GrabberBuilder.exe 2088 GrabberBuilder.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2088 GrabberBuilder.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2096 MiniSearchHost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\GrabberBuilder.exe"C:\Users\Admin\AppData\Local\Temp\GrabberBuilder.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2088
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2096
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\SubmitApprove.gif1⤵
- Modifies Internet Explorer settings
PID:2332
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat
Filesize10KB
MD5cd6829f53a60318a54648f4ff9d694c2
SHA1eda672c23f219a9cdbe740079412f5fbe04a157d
SHA2565410184dfd5ef071de14c78cc7e9488049a85e313a3454250d53e974251ac906
SHA51225a54ac013419868211b704a9b1f4cbc7c0a5b1a0e10cec09cd8eee3fbde7497e36c8e35f0506622eb9a47939c2c6b9590bf9bbf8d43508be13d7f85f7838ec9