Analysis
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max time kernel
120s -
max time network
72s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
09-11-2024 04:08
Static task
static1
Behavioral task
behavioral1
Sample
d4975c23a357e8c162b119162a83493a75f808b9bf8e21319d9a144be0aa8a64N.dll
Resource
win7-20240903-en
General
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Target
d4975c23a357e8c162b119162a83493a75f808b9bf8e21319d9a144be0aa8a64N.dll
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Size
1.8MB
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MD5
ef1a0fdec5f39d901ad0f933984ac6d0
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SHA1
3ccfd034c5f8f0d6ae6b5c299c9ae18490ebd801
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SHA256
d4975c23a357e8c162b119162a83493a75f808b9bf8e21319d9a144be0aa8a64
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SHA512
7a235aefe2c74d85252303d6c1bc3447d31c1fe3fa531fdda4a854fb567992096bd756efbd1f010c2a14d8ad01c41ff79fc9f84e99cf530710c0470305db7edf
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SSDEEP
24576:87IY7a9IRCRqRPkHQo411810cNScGKJydXTZDwmzRMo3DP7x5nbiQjs:8IY5RMHMf810Knor5zqo3zNJuQj
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,c:\\program files (x86)\\microsoft\\watermark.exe" svchost.exe -
Ramnit family
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Executes dropped EXE 4 IoCs
pid Process 2912 rundll32Srv.exe 2120 rundll32Srv.exe 2688 WaterMark.exe 2704 WaterMark.exe -
Loads dropped DLL 6 IoCs
pid Process 1660 rundll32.exe 1660 rundll32.exe 2912 rundll32Srv.exe 2120 rundll32Srv.exe 2120 rundll32Srv.exe 2688 WaterMark.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe File created C:\Windows\SysWOW64\dmlconf.dat svchost.exe File opened for modification C:\Windows\SysWOW64\dmlconf.dat svchost.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2912 set thread context of 2120 2912 rundll32Srv.exe 33 PID 2688 set thread context of 2704 2688 WaterMark.exe 35 -
resource yara_rule behavioral1/memory/2120-17-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2120-24-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2120-22-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2120-21-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2704-48-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2704-70-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral1/memory/2704-76-0x0000000000400000-0x0000000000418000-memory.dmp upx -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Common Files\System\ado\msadrh15.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\javaw.exe svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.ssl.feature_1.0.0.v20140827-1444\about.html svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\visualization\libglspectrum_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\tpcps.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\jfxwebkit.dll svchost.exe File opened for modification C:\Program Files\Microsoft Office\Office14\URLREDIR.DLL svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\ja\System.RunTime.Serialization.Resources.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\access\libscreen_plugin.dll svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\glib-lite.dll svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\api-ms-win-crt-string-l1-1-0.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\demux\libnuv_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\System\msadc\msadcs.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\sawindbg.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\WindowsAccessBridge-64.dll svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.exe svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\d3dcompiler_47.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\libxslt.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\ja\Microsoft.Build.Utilities.v3.5.resources.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\video_output\libwingdi_plugin.dll svchost.exe File opened for modification C:\Program Files\Internet Explorer\MemoryAnalyzer.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\jfr.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\stream_filter\libaribcam_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\VGX\VGX.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaw.exe svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\dtplugin\deployJava1.dll svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\jsound.dll svchost.exe File opened for modification C:\Program Files\Microsoft Office\Office14\GROOVEEX.DLL svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\video_chroma\libyuvp_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\video_filter\libposterize_plugin.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jmap.exe svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.e4.rcp_1.3.100.v20141007-2033\license.html svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\ja\System.Data.Linq.Resources.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\libvlc.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\audio_filter\libscaletempo_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Bears.htm svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Green Bubbles.htm svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\jli.dll svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\api-ms-win-core-file-l1-2-0.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\stream_out\libstream_out_gather_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\packetizer\libpacketizer_vc1_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\IpsPlugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\mshwjpn.dll svchost.exe File opened for modification C:\Program Files\Common Files\System\msadc\msdarem.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\codec\libaribsub_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\demux\libh26x_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\codec\libmft_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\OFFICE14\MSOXMLMF.DLL svchost.exe File opened for modification C:\Program Files\Internet Explorer\perf_nt.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\de\PresentationFramework.resources.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\fr\Microsoft.Build.Engine.resources.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\ja\System.Xml.Linq.Resources.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\MSInfo\msinfo32.exe svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\demux\libmod_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\mux\libmux_ts_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\services_discovery\libmicrodns_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Garden.htm svchost.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\vk_swiftshader.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\de\PresentationBuildTasks.resources.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\es\System.Management.Instrumentation.Resources.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\audio_filter\libremap_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\access\libaccess_concat_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\video_output\libflaschen_plugin.dll svchost.exe File opened for modification C:\Program Files\Windows NT\Accessories\wordpad.exe svchost.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1780 1660 WerFault.exe 30 -
System Location Discovery: System Language Discovery 1 TTPs 6 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 WaterMark.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32Srv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32Srv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WaterMark.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2704 WaterMark.exe 2704 WaterMark.exe 2704 WaterMark.exe 2704 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2704 WaterMark.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2912 rundll32Srv.exe 2688 WaterMark.exe -
Suspicious use of WriteProcessMemory 47 IoCs
description pid Process procid_target PID 2280 wrote to memory of 1660 2280 rundll32.exe 30 PID 2280 wrote to memory of 1660 2280 rundll32.exe 30 PID 2280 wrote to memory of 1660 2280 rundll32.exe 30 PID 2280 wrote to memory of 1660 2280 rundll32.exe 30 PID 2280 wrote to memory of 1660 2280 rundll32.exe 30 PID 2280 wrote to memory of 1660 2280 rundll32.exe 30 PID 2280 wrote to memory of 1660 2280 rundll32.exe 30 PID 1660 wrote to memory of 2912 1660 rundll32.exe 31 PID 1660 wrote to memory of 2912 1660 rundll32.exe 31 PID 1660 wrote to memory of 2912 1660 rundll32.exe 31 PID 1660 wrote to memory of 2912 1660 rundll32.exe 31 PID 1660 wrote to memory of 1780 1660 rundll32.exe 32 PID 1660 wrote to memory of 1780 1660 rundll32.exe 32 PID 1660 wrote to memory of 1780 1660 rundll32.exe 32 PID 1660 wrote to memory of 1780 1660 rundll32.exe 32 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2912 wrote to memory of 2120 2912 rundll32Srv.exe 33 PID 2120 wrote to memory of 2688 2120 rundll32Srv.exe 34 PID 2120 wrote to memory of 2688 2120 rundll32Srv.exe 34 PID 2120 wrote to memory of 2688 2120 rundll32Srv.exe 34 PID 2120 wrote to memory of 2688 2120 rundll32Srv.exe 34 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2688 wrote to memory of 2704 2688 WaterMark.exe 35 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36 PID 2704 wrote to memory of 2616 2704 WaterMark.exe 36
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\d4975c23a357e8c162b119162a83493a75f808b9bf8e21319d9a144be0aa8a64N.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\d4975c23a357e8c162b119162a83493a75f808b9bf8e21319d9a144be0aa8a64N.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1660 -
C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2912 -
C:\Windows\SysWOW64\rundll32Srv.exe"C:\Windows\SysWOW64\rundll32Srv.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"5⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2688 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2704 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe7⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2616
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 2283⤵
- Program crash
PID:1780
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\epl-v10.html
Filesize151KB
MD58f91179e0d119bb413ed77f27127342b
SHA12ce532228678c0be8f3fa1b8996872fc8f9eeea9
SHA2561006a05a1bff9bee4edee6ddf2889a9fc2b64e4d7fd6a4acd757ea0ae0d715af
SHA5128e0c4f5cc999bb6c9436acf60de876c15db69102a2f34bbb60def41f3f1a60740d2efa3a3c3e91a9697f88fbfd5220336adc4cf12301021fa0c5c6c2e5990bf1
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C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\license.html
Filesize148KB
MD54095157371434b5efce5eacceb3cac49
SHA1e843b7f54f4e6caa37291cec42b840082bd31c31
SHA2566c02ffdbfd9969fd5cb984bba8d84bb07bac13ef0d5fafbfa68c5c50b9806031
SHA512ff589847446d43f524239174e02c01648a1c9c05ef7d43bbf54245a4f5707c141232a0235818a2480e96a4e2f5ae9a998d4ce09505e81b0815815ef575396e11
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Filesize
69KB
MD53284b0d95ae1f80355da5e04e79a6be1
SHA1642bbb026f238a4eed9931772869b637621d98c8
SHA256f2cf33052bb9ed658351e1ff0687d0602a1f619e0976cd45852d3eb109aacf60
SHA51213712a19409818ecb66ecb2bb045a5800e4362f0ff0e9b2d158590fd501c35861ceae195f8171301ef6e72dd3b6f28184af31188836d92c171bfa6bedeb98547