Overview
overview
10Static
static
7CraxsRat 4...me.dll
windows10-2004-x64
1CraxsRat 4....1.exe
windows10-2004-x64
10CraxsRat 4...xe.xml
windows10-2004-x64
1CraxsRat 4...rk.dll
windows10-2004-x64
1CraxsRat 4...ys.dll
windows10-2004-x64
1CraxsRat 4...ms.dll
windows10-2004-x64
1CraxsRat 4...pf.dll
windows10-2004-x64
1CraxsRat 4...ts.dll
windows10-2004-x64
1CraxsRat 4...UI.dll
windows10-2004-x64
1CraxsRat 4...io.dll
windows10-2004-x64
1CraxsRat 4...le.dll
windows10-2004-x64
1CraxsRat 4...on.dll
windows10-2004-x64
1CraxsRat 4...et.dll
windows10-2004-x64
1CraxsRat 4...ib.dll
windows10-2004-x64
1Analysis
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max time kernel
52s -
max time network
63s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
02-05-2023 17:25
Behavioral task
behavioral1
Sample
CraxsRat 4.0.1/AgileDotNet.VMRuntime.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral2
Sample
CraxsRat 4.0.1/CraxsRat 4.0.1.exe
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
CraxsRat 4.0.1/CraxsRat.exe.xml
Resource
win10v2004-20230220-en
Behavioral task
behavioral4
Sample
CraxsRat 4.0.1/DrakeUI.Framework.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral5
Sample
CraxsRat 4.0.1/GeoIPCitys.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral6
Sample
CraxsRat 4.0.1/LiveCharts.WinForms.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral7
Sample
CraxsRat 4.0.1/LiveCharts.Wpf.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral8
Sample
CraxsRat 4.0.1/LiveCharts.dll
Resource
win10v2004-20230221-en
Behavioral task
behavioral9
Sample
CraxsRat 4.0.1/MetroSet UI.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral10
Sample
CraxsRat 4.0.1/NAudio.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral11
Sample
CraxsRat 4.0.1/System.IO.Compression.ZipFile.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral12
Sample
CraxsRat 4.0.1/Vip.Notification.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral13
Sample
CraxsRat 4.0.1/WinMM.Net.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral14
Sample
CraxsRat 4.0.1/mscorlib.dll
Resource
win10v2004-20230220-en
General
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Target
CraxsRat 4.0.1/CraxsRat.exe.xml
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Size
7KB
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MD5
dd5a0508827ec5ef25064c18fbd73c79
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SHA1
32f9a8803107d28418437312fd0e52e564f0f753
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SHA256
fdd077b07e6edd22678b2a29beee104daffdf56d545bbae1f39c632208a61d74
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SHA512
6fa7e2407b412e471c42162d460625e17a7dc7b76b0a236db1746645f75cf38806026f1084b254da204ce149e960da1a7897e472c58fe71151435fb94ae012e6
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SSDEEP
96:ur71tp7K0rjtHyZ90nDP9SbujEBKgFAnuAnznVuupxZAEcHn4abLQAntYIWVv/xb:ur7rp7vrjaHyv
Malware Config
Signatures
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Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "744796484" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000038a9e23718fe574b84afdc36f043bb4c000000000200000000001066000000010000200000007b0b1997fef15e204b1f8b0ef6d65b9381776c5c6be55535cc7c6986941ffd73000000000e800000000200002000000081dbfef9793f0453045921488c0559a587b259c2617bd49e9f9db3c5cc638a3c2000000089e17ee46a1c53a327959a8ef37d92ebfda7f8d656bc731d2b5ec36081d687a040000000e86e8a1fd31fda2bc68b6862a069b4641c6469641f09a30e053522f8f2ee03fe0caef7a7f778cf52c9f7cdf6aecccebac0fcde875a393943ac51377436ba0d4d iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "726514815" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 40421c2d2c7dd901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31030572" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31030572" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 70be062d2c7dd901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\IESettingSync IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "726514815" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31030572" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000038a9e23718fe574b84afdc36f043bb4c000000000200000000001066000000010000200000003ed7ce36fde4ac769954c7ef3f26df11432f70ea3d2238b43863648310feff73000000000e800000000200002000000058c8dc873ee4c551dbdd4a164ea5313ca7d451da4839a42c85d7046525f69c5b200000006f195ef212e71603cb444d39f8ed22e10df41bbec550f25e797bb2cfbeb723444000000050b522f07981a7ff7e61c170819ba7239070ddc4d9825d905c7c28ca49b654f1311b19acb36fb62976abd4a3e94fad67038f62888d5ebe2c76aac0e5e3885836 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{56610E30-E91F-11ED-9F77-E63637889D5B} = "0" iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1948 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 1948 iexplore.exe 1948 iexplore.exe 384 IEXPLORE.EXE 384 IEXPLORE.EXE 384 IEXPLORE.EXE 384 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
MSOXMLED.EXEiexplore.exedescription pid process target process PID 1816 wrote to memory of 1948 1816 MSOXMLED.EXE iexplore.exe PID 1816 wrote to memory of 1948 1816 MSOXMLED.EXE iexplore.exe PID 1948 wrote to memory of 384 1948 iexplore.exe IEXPLORE.EXE PID 1948 wrote to memory of 384 1948 iexplore.exe IEXPLORE.EXE PID 1948 wrote to memory of 384 1948 iexplore.exe IEXPLORE.EXE
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\CraxsRat 4.0.1\CraxsRat.exe.xml"1⤵
- Suspicious use of WriteProcessMemory
PID:1816 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\CraxsRat 4.0.1\CraxsRat.exe.xml2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1948 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1948 CREDAT:17410 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:384
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