Analysis
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max time kernel
239s -
max time network
277s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
07-07-2021 16:18
Static task
static1
Behavioral task
behavioral1
Sample
073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe
Resource
win10v20210410
General
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Target
073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe
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Size
31.2MB
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MD5
4ffd999d6ac629c27e1a9229c8e0ddd6
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SHA1
00b8e8cce15d86bf05ea1dfdc6a6bc779c24dedc
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SHA256
073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3
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SHA512
b91ef53301c2d9e3324f50b96d20f7d24c5db747679a10a30520a68f362487c8f48721c4bf92ad4635023ac4899184260e4b2def2ff31040bc0afbee77ffb825
Malware Config
Signatures
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Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
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Executes dropped EXE 1 IoCs
pid Process 292 drpbx.exe -
Modifies extensions of user files 6 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File created C:\Users\Admin\Pictures\MeasureDebug.tif.fun drpbx.exe File created C:\Users\Admin\Pictures\OpenTrace.tif.fun drpbx.exe File created C:\Users\Admin\Pictures\ProtectConfirm.png.fun drpbx.exe File created C:\Users\Admin\Pictures\StepConvertFrom.png.fun drpbx.exe File created C:\Users\Admin\Pictures\UnblockInvoke.tif.fun drpbx.exe File created C:\Users\Admin\Pictures\EnterUninstall.tif.fun drpbx.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" 073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsMainToNotesBackground.wmv drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\images\delete_over.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\images\rssBackBlue_docked.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\attention.gif.fun drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\bg_Premium.gif.fun drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\logo.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Horizon.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_it.jar drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\images\play_rest.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\spacebackupiconsmask.bmp.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgePackages.h.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-uisupport.jar.fun drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipskor.xml drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\bg_SlateBlue.gif drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\attention.gif drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.emf.ecore_2.10.1.v20140901-1043.jar.fun drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskmenu.xml drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\NavigationRight_ButtonGraphic.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ecf.filetransfer_5.0.0.v20140827-1444.jar.fun drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.w3c.css.sac_1.3.1.v200903091627.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-host.xml.fun drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\FlickAnimation.avi drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\jconsole.jar drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\images\bg-dock.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\43.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\WSSFilesToolIconImages.jpg.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.jface.nl_zh_4.4.0.v20140623020002.jar.fun drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\bg_FormsHomePageSlice.gif.fun drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormToolImages.jpg.fun drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\rectangle_postage_Thumbnail.bmp drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\InfoPathOM\Microsoft.Office.InfoPath.xml.fun drpbx.exe File opened for modification C:\Program Files\Java\jre7\lib\security\US_export_policy.jar drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_black_hail.png drpbx.exe File created C:\Program Files\7-Zip\Lang\sv.txt.fun drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\SpecialNavigationRight_ButtonGraphic.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\ext\dnsns.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-oql_ja.jar drpbx.exe File created C:\Program Files\7-Zip\Lang\be.txt.fun drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\images\bNext-hot.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.director.nl_ja_4.4.0.v20140623020002.jar.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-api-annotations-common.jar.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\locale\org-openide-modules_zh_CN.jar.fun drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Aspect.xml drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\settings_box_left.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.net.nl_ja_4.4.0.v20140623020002.jar.fun drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\images\in_sidebar\slideshow_glass_frame.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\rtf_alignright.gif drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\images\winXPHandle.png.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-openide-dialogs.xml.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-options-keymap_zh_CN.jar.fun drpbx.exe File opened for modification C:\Program Files\Windows Media Player\Network Sharing\wmpnss_bw48.bmp drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.bindings_0.10.200.v20140424-2042.jar.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.frameworkadmin.nl_ja_4.4.0.v20140623020002.jar.fun drpbx.exe File opened for modification C:\Program Files (x86)\Windows Media Player\Media Renderer\connectionmanager_dmr.xml drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_right_rest.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\notConnectedStateIcon.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.osgi.services.nl_ja_4.4.0.v20140623020002.jar.fun drpbx.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\images\Folder-48.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-javahelp.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-util-enumerations_zh_CN.jar drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Grayscale.xml.fun drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\logo.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\diner_s.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.core.commands_0.10.2.v20140424-2344.jar.fun drpbx.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2020 073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe 292 drpbx.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 824 dw20.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2020 073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe Token: SeDebugPrivilege 292 drpbx.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2020 wrote to memory of 292 2020 073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe 29 PID 2020 wrote to memory of 292 2020 073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe 29 PID 2020 wrote to memory of 292 2020 073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe 29 PID 292 wrote to memory of 824 292 drpbx.exe 31 PID 292 wrote to memory of 824 292 drpbx.exe 31 PID 292 wrote to memory of 824 292 drpbx.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe"C:\Users\Admin\AppData\Local\Temp\073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\073dec2ee0bdfaec89aa903cf9a19bde83ed68477d6bbccdf29489f4e6ced4f3.exe2⤵
- Executes dropped EXE
- Modifies extensions of user files
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:292 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exedw20.exe -x -s 6443⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:824
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