Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
07-06-2024 19:02
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe
Resource
win10v2004-20240508-en
General
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Target
VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe
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Size
351KB
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MD5
64e7c95aefe82efb39185321a6cdd5c4
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SHA1
f8431cf0a73e4ede5b4b38185d73d8472cfe2ae7
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SHA256
9580e6c4deba3bd46419a402b6309f77c2ed47ad62299c82ec8578400c2a3a64
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SHA512
4062e13d7b5d0a8cdf15127509265363f234ed242eaaa35251d74d247c662e143f36cda6bd55b4b6e792d30e50a920799a137e375c91e943b812c096a727baf9
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SSDEEP
6144:xS6NzGVdSv7S4rWSJ4/2lIVv0IN1FBB122Ve8cEvpFlNscjMTkx3gDRtPvPOXlMY:xRqu7SuWq4/w80GFBPcAvpXMTkx3gVtI
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 (2009) 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 2376 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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip\Lang\mng.txt drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\bear_formatted_matte2.wmv drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsScenesBackground_PAL.wmv drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\fr-FR\gadget.xml drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\CPU.Gadget\images\glass_lrg.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_Earthy.gif drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\ext\locale\updater_ja.jar.fun drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Pushpin.xml drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\720x480icongraphic.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\win32_CopyDrop32x32.gif.fun drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\CommonData\MessageBoxIconImagesMask.bmp.fun drpbx.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 drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\sk.txt drpbx.exe File created C:\Program Files\Java\jre7\THIRDPARTYLICENSEREADME.txt.fun drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\16to9Squareframe_VideoInset.png drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Full\NavigationUp_ButtonGraphic.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\es-ES\gadget.xml drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.alert.ja_5.5.0.165303.jar.fun drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.widgets.nl_ja_4.4.0.v20140623020002.jar drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Currency.Gadget\en-US\js\library.js drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_TexturedBlue.gif drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-swing-plaf.xml.fun drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\lt.txt drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Vignette\NavigationUp_SelectionSubpicture.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\bg_LightSpirit.gif drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\en-US\js\settings.js drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\lib\jfluid-server-15.jar.fun drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\button_right.gif drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\leftnav.gif.fun drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Templates\1033\ClassicPhotoAlbum.potx drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\CPU.Gadget\de-DE\gadget.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 (x86)\Adobe\Reader 9.0\Reader\Tracker\reviewers.gif drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-swing-outline.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-attach_zh_CN.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-jmx_zh_CN.jar.fun drpbx.exe File created C:\Program Files\VideoLAN\VLC\lua\http\requests\README.txt.fun drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\bg_Earthy.gif drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\background.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\jsse.jar.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.engine_2.3.0.v20140506-1720.jar.fun drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-api-annotations-common.xml drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-options-keymap_ja.jar.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_it.jar.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.emf.ecore.xmi_2.10.1.v20140901-1043.jar.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-util-enumerations.xml.fun drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\Attachments.jpg drpbx.exe File opened for modification C:\Program Files\EnablePush.raw drpbx.exe File created C:\Program Files\7-Zip\Lang\hi.txt.fun drpbx.exe File opened for modification C:\Program Files\Java\jre7\lib\images\cursors\win32_MoveDrop32x32.gif drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\NavigationUp_SelectionSubpicture.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\button_MCELogo_mousedown.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_gray_few-showers.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.ql_2.0.100.v20131211-1531.jar.fun drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\de-DE\js\localizedStrings.js drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\120DPI\(120DPI)grayStateIcon.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\win32_LinkDrop32x32.gif.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\org-openide-util-lookup.jar.fun drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Vignette\whiteband.png 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\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.transport.ecf.nl_zh_4.4.0.v20140623020002.jar.fun drpbx.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\images\Back-48.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\rtf_justify.gif.fun drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\images\dragHandle.png drpbx.exe 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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 2232 wrote to memory of 2376 2232 VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe 28 PID 2232 wrote to memory of 2376 2232 VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe 28 PID 2232 wrote to memory of 2376 2232 VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\VirusShare_64e7c95aefe82efb39185321a6cdd5c4.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
PID:2376
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
160B
MD5580ee0344b7da2786da6a433a1e84893
SHA160f8c4dd5457e9834f5402cb326b1a2d3ca0ba7e
SHA25698b6c2ddfefc628d03ceaef9d69688674a6bc32eb707f9ed86bc8c75675c4513
SHA512356d2cdea3321e894b5b46ad1ea24c0e3c8be8e3c454b5bd300b7340cbb454e71fc89ca09ea0785b373b483e67c2f6f6bb408e489b0de4ff82d5ed69a75613ba
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Filesize
351KB
MD564e7c95aefe82efb39185321a6cdd5c4
SHA1f8431cf0a73e4ede5b4b38185d73d8472cfe2ae7
SHA2569580e6c4deba3bd46419a402b6309f77c2ed47ad62299c82ec8578400c2a3a64
SHA5124062e13d7b5d0a8cdf15127509265363f234ed242eaaa35251d74d247c662e143f36cda6bd55b4b6e792d30e50a920799a137e375c91e943b812c096a727baf9
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Filesize
16B
MD58ebcc5ca5ac09a09376801ecdd6f3792
SHA181187142b138e0245d5d0bc511f7c46c30df3e14
SHA256619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880
SHA512cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650