fc9ccd56d15c5063767db3fd37317d9ac698addc02b34525118647278667b6a6

Analysis

max time kernel
4294198s
max time network
124s
platform
windows7_x64
resource
win7-20220223-en
submitted
04-03-2022 13:54

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General

Target

13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll
Size

219KB
MD5

ecce8845921a91854ab34bff2623151e
SHA1

736a4cfad1ed83a6a0b75b0474d5e01a3a36f950
SHA256

13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033
SHA512

36fda34df70629d054a55823a3cc83f9599446b36576fbc86a6aac6564460789e8b141eeb168d3e4578f28182da874dd840e57b642af1a1a315dfe08a17b53e0

Score

6^/10

bootkit persistence

Malware Config

Signatures

Drops desktop.ini file(s) 10 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Games\Solitaire\desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\SpiderSolitaire\desktop.ini	rundll32.exe
File opened for modification	C:\$Recycle.Bin\S-1-5-21-1405931862-909307831-4085185274-1000\desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\Mahjong\desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\FreeCell\desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\Hearts\desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\Purble Place\desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\desktop.ini	rundll32.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT+3	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Moscow	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.touchpoint.eclipse_2.1.200.v20140512-1650.jar	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Pacific\Tongatapu	rundll32.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.AddIn.Contract.dll	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\access_output\libaccess_output_srt_plugin.dll	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\Notes_loop_PAL.wmv	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\rectangle_specialocc_Thumbnail.bmp	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Postage_SelectionSubpicture.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\rt.jar	rundll32.exe
File opened for modification	C:\Program Files\Windows Journal\fr-FR\NBMapTIP.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Windows Mail\es-ES\msoeres.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\de-DE\msadcor.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\it-IT\msdaremr.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\en-US\F12Tools.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.rcp.product_5.5.0.165303\feature.xml	rundll32.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\epl-v10.html	rundll32.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Data.DataSetExtensions.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipskor.xml	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\BabyBoyMainToNotesBackground.wmv	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Antigua	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\icons\console_view.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Recife	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\af\LC_MESSAGES\vlc.mo	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\requests\status.json	rundll32.exe
File opened for modification	C:\Program Files\Windows Journal\es-ES\NBMapTIP.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\sqlxmlx.dll	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\bin\setNetworkClientCP.bat	rundll32.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\fr-FR\js\settings.js	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-profiling.xml	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Pacific\Pitcairn	rundll32.exe
File opened for modification	C:\Program Files\Windows Journal\Templates\Dotted_Line.jtp	rundll32.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\es-ES\css\Tmf6171.tmp	rundll32.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\de-DE\js\Tmf6191.tmp	rundll32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ast.txt	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\D3DCompiler_47.dll	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.docs.ja_5.5.0.165303.jar	rundll32.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Europe\Prague	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\misc\libgnutls_plugin.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\hwrespsh.dat	rundll32.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\asl-v20.txt	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx.ui.ja_5.5.0.165303.jar	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\codec\libcc_plugin.dll	rundll32.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\pt-BR.pak	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.emf.ecore_2.10.1.v20140901-1043\license.html	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Backgammon\es-ES\bckgzm.exe.mui	rundll32.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\vlm.html	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Push\NavigationRight_SelectionSubpicture.png	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\blackbars80.png	rundll32.exe
File opened for modification	C:\Program Files\Windows Media Player\de-DE\wmpnscfg.exe.mui	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\ext\jaccess.jar	rundll32.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\es\Microsoft.Build.Utilities.v3.5.resources.dll	rundll32.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\UIAutomationProvider.dll	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\audio_filter\libparam_eq_plugin.dll	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\stream_out\libstream_out_setid_plugin.dll	rundll32.exe
File opened for modification	C:\Program Files\Windows Journal\Tmf5F8E.tmp	rundll32.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\it-IT\js\calendar.js	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\SystemV\HST10	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\1033\Mso Example Intl Setup File A.txt	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\en-US\eula.rtf	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\JAWTAccessBridge-64.dll	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-selector-api_zh_CN.jar	rundll32.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\fr\PresentationBuildTasks.resources.dll	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1604	1692	rundll32.exe	27
PID 1692 wrote to memory of 1604	1692	rundll32.exe	27
PID 1692 wrote to memory of 1604	1692	rundll32.exe	27
PID 1692 wrote to memory of 1604	1692	rundll32.exe	27
PID 1692 wrote to memory of 1604	1692	rundll32.exe	27
PID 1692 wrote to memory of 1604	1692	rundll32.exe	27
PID 1692 wrote to memory of 1604	1692	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#1
  2⤵
  - Drops desktop.ini file(s)
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Drops file in Program Files directory
  PID:1604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1604-54-0x0000000076731000-0x0000000076733000-memory.dmp

Filesize
8KB

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