Overview
overview
10Static
static
7CraxsRat 4...me.dll
windows10-2004-x64
1CraxsRat 4...g.html
windows10-2004-x64
6CraxsRat 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
55s -
max time network
59s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
04-05-2023 14:06
Behavioral task
behavioral1
Sample
CraxsRat 4.0.1/AgileDotNet.VMRuntime.dll
Resource
win10v2004-20230221-en
Behavioral task
behavioral2
Sample
CraxsRat 4.0.1/ChangeLog.html
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
CraxsRat 4.0.1/CraxsRat 4.0.1.exe
Resource
win10v2004-20230220-en
Behavioral task
behavioral4
Sample
CraxsRat 4.0.1/CraxsRat.exe.xml
Resource
win10v2004-20230220-en
Behavioral task
behavioral5
Sample
CraxsRat 4.0.1/DrakeUI.Framework.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral6
Sample
CraxsRat 4.0.1/GeoIPCitys.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral7
Sample
CraxsRat 4.0.1/LiveCharts.WinForms.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral8
Sample
CraxsRat 4.0.1/LiveCharts.Wpf.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral9
Sample
CraxsRat 4.0.1/LiveCharts.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral10
Sample
CraxsRat 4.0.1/MetroSet UI.dll
Resource
win10v2004-20230221-en
Behavioral task
behavioral11
Sample
CraxsRat 4.0.1/NAudio.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral12
Sample
CraxsRat 4.0.1/System.IO.Compression.ZipFile.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral13
Sample
CraxsRat 4.0.1/Vip.Notification.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral14
Sample
CraxsRat 4.0.1/WinMM.Net.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral15
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
-
SSDEEP
96:ur71tp7K0rjtHyZ90nDP9SbujEBKgFAnuAnznVuupxZAEcHn4abLQAntYIWVv/xb:ur7rp7vrjaHyv
Malware Config
Signatures
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Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" 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 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\Main\WindowsSearch 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\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3167355824" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive 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 (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000038a9e23718fe574b84afdc36f043bb4c0000000002000000000010660000000100002000000082d46c084d94173c2e7ae0639a31479ee5ada0b6511683d93b3b0251b9a00bae000000000e80000000020000200000009eb9a269087216912e883fac9ac4bd04a5bd9fb42ff7a2516ec0dcde7a60f34a20000000627e15f6968f85b3e1241b4fc5b9426dbefc3aecf94ed894e2a54a6b8b12304340000000dcd484fe56769418ef775040a12777dfb40bb7bd68a13d28cfbfeed6e67ce4fc4d905d01bb83ccf6d73574887b412dfd5979c4b6657d943d1f77f3f33606ae71 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 70e73dbea27ed901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery 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\LastCheckForUpdateLowDateTime = "3167355824" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31030946" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000038a9e23718fe574b84afdc36f043bb4c00000000020000000000106600000001000020000000a7654b8c05fba59ad8f98e0b27481acbb8bf323208e79ab01100324ad6d6964f000000000e80000000020000200000003baef124988c676948b9616400667766a58487d44fbcfb3a9a658f1a3dbba09f20000000d6c7ed20debd219d58ba022c34ebf87d2c313e97a9217a43d480bc297f6e256e40000000cb22cab717ac6f3e9e78c5f7287c40f96d91f444cf87838174ad6a9705765c2e6ac10d076bf3dec7e787d40ab01a72ca1692c86cf05a70ed765d9870ff084e5f 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\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing 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\LastUpdateHighDateTime = "31030946" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = b01926bea27ed901 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\AdminActive\{E6CFEC73-EA95-11ED-9F77-62080863D4B5} = "0" 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\IESettingSync\SlowSettingTypesChanged = "2" IEXPLORE.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 628 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 628 iexplore.exe 628 iexplore.exe 1068 IEXPLORE.EXE 1068 IEXPLORE.EXE 1068 IEXPLORE.EXE 1068 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
MSOXMLED.EXEiexplore.exedescription pid process target process PID 4988 wrote to memory of 628 4988 MSOXMLED.EXE iexplore.exe PID 4988 wrote to memory of 628 4988 MSOXMLED.EXE iexplore.exe PID 628 wrote to memory of 1068 628 iexplore.exe IEXPLORE.EXE PID 628 wrote to memory of 1068 628 iexplore.exe IEXPLORE.EXE PID 628 wrote to memory of 1068 628 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
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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
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:628 CREDAT:17410 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/4988-133-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB
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memory/4988-134-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB
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memory/4988-135-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB
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memory/4988-136-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB
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memory/4988-137-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB
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memory/4988-138-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB
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memory/4988-139-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB
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memory/4988-140-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB
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memory/4988-141-0x00007FFC0D490000-0x00007FFC0D4A0000-memory.dmpFilesize
64KB