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Analysis
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max time kernel
94s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19/09/2024, 19:56
Static task
static1
Behavioral task
behavioral1
Sample
ec15f2c5b92ad849e29afd3e0281b8c9_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ec15f2c5b92ad849e29afd3e0281b8c9_JaffaCakes118.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
FLVTubeSvc.exe
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
FLVTubeSvc.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
flvtubetb.dll
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
flvtubetb.dll
Resource
win10v2004-20240802-en
General
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Target
flvtubetb.dll
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Size
1.1MB
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MD5
40a251b7cb268221c52f05bfa5129552
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SHA1
c70cb58e0ee5181bc1b072607aab044d5edae958
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SHA256
4019dd8f0b1b3ba29caf6cfec094e46bbf21121b989591b3232d2ebb4af017eb
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SHA512
f63131956abf8e977bfcab19d7fdcdbb3ffd5c95c3a09e2804688400d4063ea4770caa73a3d0eefad57bbd8f4521ad93bca426773864cda30504758da0a9d559
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SSDEEP
24576:yvIElTvQjW95M4bPQU0FKLc7HjULXcDKM:MBlDfnbIUG7HjyXcDKM
Malware Config
Signatures
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System Location Discovery: System Language Discovery 1 TTPs 3 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 regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ielowutil.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Internet Explorer\Toolbar regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\MINIE iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3711CE01-76C1-11EF-818E-F2CBF1DCE4A5} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Toolbar IEXPLORE.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar\{851552F5-B878-4b03-904F-2AD6A4CC8994} regsvr32.exe Set value (int) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{851552F5-B878-4b03-904F-2AD6A4CC8994} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{851552F5-B878-4b03-904F-2AD6A4CC8994}\ = "FlvTube Toolbar" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{851552F5-B878-4b03-904F-2AD6A4CC8994}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{851552F5-B878-4b03-904F-2AD6A4CC8994}\InProcServer32\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\flvtubetb.dll\"" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{851552F5-B878-4b03-904F-2AD6A4CC8994}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 5000 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 5000 iexplore.exe 5000 iexplore.exe 2772 IEXPLORE.EXE 2772 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2892 wrote to memory of 2288 2892 regsvr32.exe 82 PID 2892 wrote to memory of 2288 2892 regsvr32.exe 82 PID 2892 wrote to memory of 2288 2892 regsvr32.exe 82 PID 5000 wrote to memory of 2772 5000 iexplore.exe 85 PID 5000 wrote to memory of 2772 5000 iexplore.exe 85 PID 5000 wrote to memory of 2772 5000 iexplore.exe 85
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\flvtubetb.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\flvtubetb.dll2⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Modifies registry class
PID:2288
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C:\Program Files (x86)\Internet Explorer\ielowutil.exe"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding1⤵
- System Location Discovery: System Language Discovery
PID:4284
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5000 CREDAT:17410 /prefetch:22⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2772
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