Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
07-06-2024 19:07
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_6984a724843fb60130a965a9fc317f2d.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
VirusShare_6984a724843fb60130a965a9fc317f2d.exe
Resource
win10v2004-20240508-en
General
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Target
VirusShare_6984a724843fb60130a965a9fc317f2d.exe
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Size
1.5MB
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MD5
6984a724843fb60130a965a9fc317f2d
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SHA1
1ad9f8695c10adb69bdebd6bdc39b119707d500e
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SHA256
917809beb6566079dbb6b686107756d9eb3ff4543f6b41ef327cea7497118457
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SHA512
54d951c140df296b4fedff9225fee0e0660ee0f92a8790a7321da46334beb966a03a4d44bb0c9baac91cd53f1c81a84e7a35fc74aa67c8697590e87964e8420a
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SSDEEP
24576:yL6O/FARFbJT83lUK17IXe5E/VjyL048Gjnz/tARwh/jriCHT:uDFsfalN7Ae54yj1jz/tAC
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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Renames multiple (1980) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Executes dropped EXE 1 IoCs
pid Process 2480 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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" VirusShare_6984a724843fb60130a965a9fc317f2d.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Dataset.zip.kkk drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\redStateIcon.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\CommonData\AlertImage_ContactHighMask.bmp drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\PublicFunctions.js drpbx.exe File created C:\Program Files\Mozilla Firefox\browser\VisualElements\VisualElements_70.png.kkk drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Composite.xml.kkk drpbx.exe File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\UserControl.zip.kkk drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\NotifierUpArrow.jpg.kkk drpbx.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\icons\new-trigger-wiz.gif drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Class.zip drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\720x480icongraphic.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\images\bNext-down.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\greenStateIcon.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-application.xml drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Trek.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.flightrecorder.controlpanel.ui.ja_5.5.0.165303.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-nodes.xml drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\images\reveal_hov.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\144DPI\(144DPI)redStateIcon.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\win32_CopyNoDrop32x32.gif.kkk drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\update_tracking\org-netbeans-modules-profiler-attach.xml.kkk drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-api-caching.jar drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Angles.xml.kkk drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Apex.xml.kkk drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Templates\1033\AdjacencyMergeLetter.dotx drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\spacebackupiconsmask.bmp.kkk drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\25.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\de-DE\js\calendar.js drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.feature.flightrecorder_5.5.0.165303\feature.xml.kkk drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\uk.txt drpbx.exe File opened for modification C:\Program Files (x86)\Windows NT\TableTextService\TableTextServiceSimplifiedShuangPin.txt drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\Panel_Mask.wmv drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\8.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\bg_Casual.gif drpbx.exe File opened for modification C:\Program Files (x86)\Windows NT\TableTextService\TableTextServiceDaYi.txt drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Vignette\NavigationRight_SelectionSubpicture.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Solutions\Person.gif drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\button_left_mousedown.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\NotifierUpArrow.jpg drpbx.exe File created C:\Program Files\7-Zip\Lang\lt.txt.kkk drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\sw.txt drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Templates\1033\Pitchbook.potx drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\symbols\ja-jp-sym.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.workbench3_0.12.0.v20140227-2118.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-sampler.jar.kkk drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\images\rings-dock.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-compat.xml.kkk drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\bg_GreenTea.gif drpbx.exe File created C:\Program Files\Java\jre7\lib\ext\access-bridge-64.jar.kkk drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\120DPI\(120DPI)notConnectedStateIcon.png drpbx.exe File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\DataSet.zip.kkk drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-spi-actions_ja.jar.kkk drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\ga.txt drpbx.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\stop_collection_data.gif drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\bg_LightSpirit.gif drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.swt.win32.win32.x86_64.nl_zh_4.4.0.v20140623020002.jar.kkk drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\120DPI\(120DPI)alertIcon.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\144DPI\(144DPI)grayStateIcon.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\locale\org-openide-util-lookup_zh_CN.jar.kkk drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsfin.xml drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\flower_m.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_black_moon-waxing-gibbous.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Resource.zip drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Aspect.xml.kkk drpbx.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2916 wrote to memory of 2480 2916 VirusShare_6984a724843fb60130a965a9fc317f2d.exe 28 PID 2916 wrote to memory of 2480 2916 VirusShare_6984a724843fb60130a965a9fc317f2d.exe 28 PID 2916 wrote to memory of 2480 2916 VirusShare_6984a724843fb60130a965a9fc317f2d.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\VirusShare_6984a724843fb60130a965a9fc317f2d.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_6984a724843fb60130a965a9fc317f2d.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\VirusShare_6984a724843fb60130a965a9fc317f2d.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
PID:2480
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
160B
MD5b16fd07123004cfed3e26fb61a6e9dfb
SHA1ddc160b3212067d497c4acf4437c0c2129ae5bbe
SHA2568ae6419c9f9d2487b4f90ed9371de3abc811a0584743c7c4c3938c270b46bb40
SHA51222a1aae8f390a4e3756908b333e5bfdf1ef49898a856bf920f491dcfa7237bdb21499ef4577525ce8fc5b08df97259d2538e4a09d3e9caa19ac815ae4a8d1b37
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Filesize
1.5MB
MD56984a724843fb60130a965a9fc317f2d
SHA11ad9f8695c10adb69bdebd6bdc39b119707d500e
SHA256917809beb6566079dbb6b686107756d9eb3ff4543f6b41ef327cea7497118457
SHA51254d951c140df296b4fedff9225fee0e0660ee0f92a8790a7321da46334beb966a03a4d44bb0c9baac91cd53f1c81a84e7a35fc74aa67c8697590e87964e8420a
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Filesize
16B
MD50c1d780021c5b23a385952eea404ebb6
SHA172ff2126b462cb558fd8fe62190507ef04c9f0e2
SHA256c82c14ceb938e372e5b714924a8cf82e14ed33880b6bd301d70ca06e095e0c8b
SHA5127d1869354f56eda976cda689ca1dd4bd3255909b2219a663eea9b8c35152d2e5aa3869f3f7e6e2d78fddb1ee65c1587167f5c070fdbed2ab26f67789f6c4bc16