Analysis
- max time kernel
150s - max time network
148s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system - submitted
15/03/2024, 17:25
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cbfdae7fe306137ec5b180a3f1cfbd40.exe
Resource
win7-20240221-en
10 signatures
150 seconds
General
- Target cbfdae7fe306137ec5b180a3f1cfbd40.exe
- Size 120KB
- Sample240315-vzf5caeb2x
- SHA256 1d8086cbd134f292febdf6bfa05b5de9ee836e9b806e088ff4f164d580d0c5b8
- MD5 cbfdae7fe306137ec5b180a3f1cfbd40
- SHA1 52aa114df59c5acf175381e50d18cf53f1dd1334
- SHA512 13587853c4a6507726220b0a2f2209393c16b6124b306448f605b0b647548608f7794eae8c6cde4c5b80e1e7f33c87dbf38c5b116bb12c49aef71e9f1a2be52d
- SSDEEP 768:8QxkwieBsIqHpcrkMEYEhA7P4RhAtmaZFb79U9MKAjBEig6/1k21m3uHRdMNDj2Y:88kwiYTEhU4HDa1KkjWXUa21mc/Mue9
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- 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 - Executes dropped EXE 1 IoCs
pid Process 2720 WaterMark.exe - Loads dropped DLL 2 IoCs
pid Process 2100 cbfdae7fe306137ec5b180a3f1cfbd40.exe 2100 cbfdae7fe306137ec5b180a3f1cfbd40.exe -
resource yara_rule behavioral1/memory/2720-15-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/2720-13-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/2100-1-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/2720-253-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/2720-415-0x0000000000400000-0x0000000000426000-memory.dmp upx - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\dmlconf.dat svchost.exe File opened for modification C:\Windows\SysWOW64\dmlconf.dat svchost.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip\7-zip.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\mshwgst.dll svchost.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\mojo_core.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\RELEASE-NOTES.html svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\codec\libspeex_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\video_chroma\libswscale_plugin.dll svchost.exe File opened for modification C:\Program Files\7-Zip\7z.dll svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\freebl3.dll svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\mozavutil.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\it\System.Speech.resources.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\audio_filter\libscaletempo_pitch_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\audio_output\libdirectsound_plugin.dll svchost.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\CPU.Gadget\fr-FR\cpu.html svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\mshwLatin.dll svchost.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.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\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\license.html svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\glib-lite.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\ja\UIAutomationTypes.resources.dll svchost.exe File opened for modification C:\Program Files\Internet Explorer\F12Tools.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\pack200.exe svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\plugin-container.exe svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\logger\libfile_logger_plugin.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\jaas_nt.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\System.Workflow.Activities.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\fr\System.Management.Instrumentation.Resources.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\libvlccore.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\offset_window.html svchost.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACEODTXT.DLL svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\video_chroma\librv32_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\video_output\libdirectdraw_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\System\msadc\msadcfr.dll svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\installer.dll svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\minidump-analyzer.exe svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\de\System.ServiceModel.Resources.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Data.Services.Design.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\packetizer\libpacketizer_mlp_plugin.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc.exe svchost.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\ink\penchs.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.babel.nls_eclipse_ja_4.4.0.v20140623020002\epl-v10.html svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\fr\UIAutomationTypes.resources.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\ja\System.Data.Entity.Resources.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\Windows Sidebar\Gadgets\Currency.Gadget\it-IT\currency.html svchost.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\MCESidebarCtrl.dll svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.feature_3.9.0.v20140827-1444\license.html svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\olh001.htm svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\dt_socket.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 Media Player\WMPSideShowGadget.exe svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\jli.dll svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\kinit.exe svchost.exe File opened for modification C:\Program Files\Mozilla Firefox\api-ms-win-core-file-l2-1-0.dll svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\fr\System.IO.Log.Resources.dll svchost.exe File opened for modification C:\Program Files\Windows Mail\msoe.dll svchost.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPOBJS.DLL svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\es\System.IO.Log.Resources.dll svchost.exe File opened for modification C:\Program Files\Java\jre7\bin\dt_shmem.dll svchost.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACEOLEDB.DLL svchost.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\mlib_image.dll svchost.exe File opened for modification C:\Program Files\Microsoft Office\Office14\GROOVEEX.DLL svchost.exe File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\ja\System.Speech.resources.dll svchost.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\codec\libaom_plugin.dll svchost.exe File opened for modification C:\Program Files\Common Files\System\ado\msado15.dll svchost.exe - Suspicious behavior: EnumeratesProcesses 37 IoCs
pid Process 2720 WaterMark.exe 2720 WaterMark.exe 2720 WaterMark.exe 2720 WaterMark.exe 2720 WaterMark.exe 2720 WaterMark.exe 2720 WaterMark.exe 2720 WaterMark.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2720 WaterMark.exe Token: SeDebugPrivilege 2592 svchost.exe Token: SeDebugPrivilege 2720 WaterMark.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2100 wrote to memory of 2720 2100 cbfdae7fe306137ec5b180a3f1cfbd40.exe 28 PID 2100 wrote to memory of 2720 2100 cbfdae7fe306137ec5b180a3f1cfbd40.exe 28 PID 2100 wrote to memory of 2720 2100 cbfdae7fe306137ec5b180a3f1cfbd40.exe 28 PID 2100 wrote to memory of 2720 2100 cbfdae7fe306137ec5b180a3f1cfbd40.exe 28 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2556 2720 WaterMark.exe 29 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2720 wrote to memory of 2592 2720 WaterMark.exe 30 PID 2592 wrote to memory of 260 2592 svchost.exe 1 PID 2592 wrote to memory of 260 2592 svchost.exe 1 PID 2592 wrote to memory of 260 2592 svchost.exe 1 PID 2592 wrote to memory of 260 2592 svchost.exe 1 PID 2592 wrote to memory of 260 2592 svchost.exe 1 PID 2592 wrote to memory of 336 2592 svchost.exe 2 PID 2592 wrote to memory of 336 2592 svchost.exe 2 PID 2592 wrote to memory of 336 2592 svchost.exe 2 PID 2592 wrote to memory of 336 2592 svchost.exe 2 PID 2592 wrote to memory of 336 2592 svchost.exe 2 PID 2592 wrote to memory of 388 2592 svchost.exe 3 PID 2592 wrote to memory of 388 2592 svchost.exe 3 PID 2592 wrote to memory of 388 2592 svchost.exe 3 PID 2592 wrote to memory of 388 2592 svchost.exe 3 PID 2592 wrote to memory of 388 2592 svchost.exe 3 PID 2592 wrote to memory of 400 2592 svchost.exe 4 PID 2592 wrote to memory of 400 2592 svchost.exe 4 PID 2592 wrote to memory of 400 2592 svchost.exe 4 PID 2592 wrote to memory of 400 2592 svchost.exe 4 PID 2592 wrote to memory of 400 2592 svchost.exe 4 PID 2592 wrote to memory of 436 2592 svchost.exe 5 PID 2592 wrote to memory of 436 2592 svchost.exe 5 PID 2592 wrote to memory of 436 2592 svchost.exe 5 PID 2592 wrote to memory of 436 2592 svchost.exe 5 PID 2592 wrote to memory of 436 2592 svchost.exe 5 PID 2592 wrote to memory of 480 2592 svchost.exe 6 PID 2592 wrote to memory of 480 2592 svchost.exe 6 PID 2592 wrote to memory of 480 2592 svchost.exe 6 PID 2592 wrote to memory of 480 2592 svchost.exe 6 PID 2592 wrote to memory of 480 2592 svchost.exe 6 PID 2592 wrote to memory of 496 2592 svchost.exe 7 PID 2592 wrote to memory of 496 2592 svchost.exe 7 PID 2592 wrote to memory of 496 2592 svchost.exe 7 PID 2592 wrote to memory of 496 2592 svchost.exe 7 PID 2592 wrote to memory of 496 2592 svchost.exe 7 PID 2592 wrote to memory of 504 2592 svchost.exe 8 PID 2592 wrote to memory of 504 2592 svchost.exe 8 PID 2592 wrote to memory of 504 2592 svchost.exe 8 PID 2592 wrote to memory of 504 2592 svchost.exe 8 PID 2592 wrote to memory of 504 2592 svchost.exe 8
Processes
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C:\Windows\System32\smss.exe\SystemRoot\System32\smss.exe1⤵PID:260
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C:\Windows\system32\csrss.exe%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=161⤵PID:336
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C:\Windows\system32\wininit.exewininit.exe1⤵PID:388
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C:\Windows\system32\services.exeC:\Windows\system32\services.exe2⤵PID:480
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch3⤵PID:600
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}4⤵PID:1856
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C:\Windows\system32\wbem\wmiprvse.exeC:\Windows\system32\wbem\wmiprvse.exe -Embedding4⤵PID:2780
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k RPCSS3⤵PID:676
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted3⤵PID:752
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted3⤵PID:816
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"4⤵PID:1060
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs3⤵PID:844
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C:\Windows\system32\wbem\WMIADAP.EXEwmiadap.exe /F /T /R4⤵PID:2716
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService3⤵PID:968
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkService3⤵PID:240
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C:\Windows\system32\taskhost.exe"taskhost.exe"3⤵PID:1080
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C:\Windows\System32\spoolsv.exeC:\Windows\System32\spoolsv.exe3⤵PID:1088
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNoNetwork3⤵PID:1168
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation3⤵PID:2104
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C:\Windows\system32\sppsvc.exeC:\Windows\system32\sppsvc.exe3⤵PID:2960
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C:\Windows\system32\lsass.exeC:\Windows\system32\lsass.exe2⤵PID:496
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C:\Windows\system32\lsm.exeC:\Windows\system32\lsm.exe2⤵PID:504
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C:\Windows\system32\csrss.exe%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=161⤵PID:400
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:436
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1152
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C:\Users\Admin\AppData\Local\Temp\cbfdae7fe306137ec5b180a3f1cfbd40.exe"C:\Users\Admin\AppData\Local\Temp\cbfdae7fe306137ec5b180a3f1cfbd40.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Drops file in Program Files directory
PID:2556
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\Microsoft\WaterMark.exe
- Size 120KB
- SHA256 1d8086cbd134f292febdf6bfa05b5de9ee836e9b806e088ff4f164d580d0c5b8
- MD5 cbfdae7fe306137ec5b180a3f1cfbd40
- SHA1 52aa114df59c5acf175381e50d18cf53f1dd1334
- SHA512 13587853c4a6507726220b0a2f2209393c16b6124b306448f605b0b647548608f7794eae8c6cde4c5b80e1e7f33c87dbf38c5b116bb12c49aef71e9f1a2be52d
- SSDEEP 768:8QxkwieBsIqHpcrkMEYEhA7P4RhAtmaZFb79U9MKAjBEig6/1k21m3uHRdMNDj2Y:88kwiYTEhU4HDa1KkjWXUa21mc/Mue9
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\epl-v10.html
- Size 254KB
- SHA256 0b0e20564972c9a2580c624053b6063d721a69b07767551103d8c343e3c70840
- MD5 4a5c131bd889a329fcd3a56c30a2e626
- SHA1 0402535b88634f4432f0abcb8790a11a27c2870d
- SHA512 1909a8512574c8b66674382feb49106ea24cd277f1645d7f9a9cb6cb314ae9d20116b0b9ad47b7f79742c4a185179560a8e26dd2173b5ad7a5d6d01e7a8dd60c
- SSDEEP 1536:+0nv+YboXRJFqBLXq33ffMiW6RGke4v9YPDZ/ciJoKuy0daWZSjK3LDgrnrLjMs4:+svhq/q/wvST/5k
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\license.html
- Size 250KB
- SHA256 6edcf7eee06d4c7d6e73588d5a2e176b159a8b74bdd7a7b5a2a408ed117415d4
- MD5 c72f85d65453751b457943dc1031287f
- SHA1 ef8ec74fa9b1672dc187779daf0663068e5b96bc
- SHA512 55adffa1d9d46dd1b001a65923dad021a5cf4c639c4affa1396f0d102a708c15a418821feda88693494985ec8abc2338121ec37c825c79259e16999e16dd7835
- SSDEEP 1536:BK1Sy6K6v+YboXRJFqBLXq33ffMiW6RGke4v9YPDZ/ciJoKuy0daWZSjK3LDgrnM:s6vhq/q/wvST/5uZ
- MD5 SHA1 SHA512 SSDEEP