Resubmissions
24/12/2024, 19:02
241224-xp5fastrdy1016/07/2024, 19:04
240716-xq4v6aydlf16/07/2024, 19:00
240716-xn2b9avhmm1029/04/2024, 18:50
240429-xhbjmsac4x1029/04/2024, 18:47
240429-xffetahh2310Analysis
- max time kernel
90s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20241007-en - resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system - submitted
24/12/2024, 19:02
Behavioral task
behavioral1
Sample
BRUH WTF/bin/settings.xml
Resource
win11-20241007-en
10 signatures
150 seconds
General
- Target BRUH WTF/bin/settings.xml
- Size 688B
- Sample241224-xp5fastrdy
- SHA256 a5828dc580978f8e1f37459d33e8158416b6c8a0c2881e9eabced034ecfbd15c
- MD5 5769c0618b9fe4873c9256b5cbbf2b95
- SHA1 e123705e308feb804baf0f23949f966e78162dd5
- SHA512 15f80ce7cb33125c856dd7b6ed032dedc0ea30c40eb72d44e0c4f7cecefe33e54449c51f70efe88154dc35f52bdaa78b6fa6079cc55425aefcd7088d3f25acae
- MD5 SHA1 SHA512
Score
4/10
Malware Config
Signatures
- Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\Panther\UnattendGC\setupact.log UserOOBEBroker.exe File opened for modification C:\Windows\Panther\UnattendGC\setuperr.log UserOOBEBroker.exe File opened for modification C:\Windows\Panther\UnattendGC\diagerr.xml UserOOBEBroker.exe File opened for modification C:\Windows\Panther\UnattendGC\diagwrn.xml UserOOBEBroker.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 FileCoAuth.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\GPU\SoftwareFallback = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionLow = "395196024" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListDomainAttributeSet = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "9" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\VersionManager\FirstCheckForUpdateHighDateTime = "31151713" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "8" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\GPU\Revision = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "13" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\VersionManager\FirstCheckForUpdateLowDateTime = "1345588499" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\GPU\SubSysId = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Main\DisableFirstRunCustomize = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionHigh = "268435456" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\GPU\DeviceId = "140" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "268435456" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Toolbar explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPMigrationVer = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\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-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\GPU\VendorId = "4318" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "395196024" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Internet Explorer\Protected - It is a violation of Windows Policy to modify. See aka.ms/browserpolicy\HomepagesUpgradeVersion = "1" iexplore.exe - Modifies data under HKEY_USERS 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" svchost.exe - Modifies registry class 10 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings control.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings\MuiCache BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:" BackgroundTransferHost.exe Key created \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2253712635-4068079004-3870069674-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix BackgroundTransferHost.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2496 explorer.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2496 explorer.exe - Suspicious behavior: LoadsDriver 6 IoCs
pid Process 4 Process not Found 4 Process not Found 4 Process not Found 4 Process not Found 4 Process not Found 680 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2496 explorer.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3096 wrote to memory of 5016 3096 MSOXMLED.EXE 77 PID 3096 wrote to memory of 5016 3096 MSOXMLED.EXE 77 PID 2496 wrote to memory of 4924 2496 explorer.exe 100 PID 2496 wrote to memory of 4924 2496 explorer.exe 100
Processes
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C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE"C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE" /verb open "C:\Users\Admin\AppData\Local\Temp\BRUH WTF\bin\settings.xml"1⤵
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\BRUH WTF\bin\settings.xml2⤵
- Modifies Internet Explorer settings
PID:5016
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc1⤵PID:4196
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C:\Windows\System32\oobe\UserOOBEBroker.exeC:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding1⤵
- Drops file in Windows directory
PID:4424
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C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exeC:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding1⤵
- System Location Discovery: System Language Discovery
PID:1576
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C:\Windows\system32\BackgroundTransferHost.exe"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.131⤵
- Modifies registry class
PID:5032
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C:\Windows\system32\control.exe"C:\Windows\system32\control.exe" netconnections1⤵
- Modifies registry class
PID:1272
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{5BD95610-9434-43C2-886C-57852CC8A120} -Embedding1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" devmgr.dll,DeviceProperties_RunDLL /DeviceId "PCI\VEN_10EC&DEV_8139&SUBSYS_11001AF4&REV_20\3&11583659&0&18"2⤵PID:4924
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
PID:1652
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\0c0f3547-3700-4061-a8ab-378fc715816c.down_data
- Size 555KB
- SHA256 855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e
- MD5 5683c0028832cae4ef93ca39c8ac5029
- SHA1 248755e4e1db552e0b6f8651b04ca6d1b31a86fb
- SHA512 aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3
- SSDEEP 6144:m4W6OWkK0An6PtQ3VG7Gz3AW/ZPfMKUPIbs7aGU4toNNQQPi/+sMT/TtpNkppXsb:hW6O/k1zQWZz/QtGo2saBKZIxWoOu
- MD5 SHA1 SHA512 SSDEEP