Analysis Overview
SHA256
fcc9c85254c42d09fd1d24b4153fccd9eba8a9c7dc69939d4407da8990636e06
Threat Level: Known bad
The file jigsaw.zip was found to be: Known bad.
Malicious Activity Summary
Jigsaw Ransomware
Reads user/profile data of web browsers
Executes dropped EXE
Adds Run key to start application
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-09-03 22:17
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-03 22:17
Reported
2023-09-03 22:21
Platform
win7-20230831-en
Max time kernel
247s
Max time network
250s
Command Line
Signatures
Jigsaw Ransomware
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" | C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-autoupdate-ui_ja.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-spi-actions_ja.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-actions_ja.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-compat_ja.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Elemental.xml | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_btn-next-static.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\cronometer_dot.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-uihandler.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\7-Zip\readme.txt.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\et.txt | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\circleround_glass.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.console.nl_zh_4.4.0.v20140623020002.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\en-US\js\weather.js | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-lib-profiler-ui.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\21.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\CPU.Gadget\de-DE\gadget.xml | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.metadata_2.2.0.v20131211-1531.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\es-ES\js\weather.js | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.components.ui_5.5.0.165303.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.publisher.eclipse_1.1.200.v20140414-0825.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\de-DE\js\currency.js | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\title_trans_scene.wmv | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_few-showers.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\InformationIcon.jpg | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\images\month.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\NotifierWindowMaskRTL.bmp | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_FormsHomePageBlank.gif.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.mbeanbrowser.ja_5.5.0.165303.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\fr-FR\js\settings.js | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\en-US\js\RSSFeeds.js | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-options-api.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Aspect.xml.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_pl.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\timer_up.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.alert.zh_CN_5.5.0.165303.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| 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\booklist.gif.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\20.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\ModuleAutoDeps\org-netbeans-core.xml.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-print_ja.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-loaders_ja.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Technic.xml.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\NavigationLeft_SelectionSubpicture.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\de-DE\gadget.xml | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Currency.Gadget\images\add_over.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.databinding_1.4.2.v20140729-1044.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\VideoLAN\VLC\lua\http\images\Back-48.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\es-ES\js\calendar.js | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\it-IT\js\highDpiImageSwap.js | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-autoupdate-cli.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_moon-first-quarter.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\ext\zipfs.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\javax.servlet_3.0.0.v201112011016.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.core.nl_ja_4.4.0.v20140623020002.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\validation.js.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\images\Tulip.jpg | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\flower_dot.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-application.xml.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-util-lookup.xml.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-keyring_zh_CN.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-lib-profiler-charts_ja.jar | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-bg_glass_100_f6f6f6_1x400.png | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Java\jdk1.7.0_80\lib\sa-jdi.jar.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Office\Templates\1033\BillingStatement.xltx | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
| File created | C:\Program Files\Google\Chrome\Application\106.0.5249.119\VisualElements\LogoBeta.png.fun | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2372 wrote to memory of 2028 | N/A | C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe |
| PID 2372 wrote to memory of 2028 | N/A | C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe |
| PID 2372 wrote to memory of 2028 | N/A | C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe | C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe
"C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe"
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x498
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
Network
Files
memory/2372-0-0x0000000000900000-0x0000000000950000-memory.dmp
memory/2372-1-0x0000000000390000-0x00000000003C8000-memory.dmp
memory/2372-2-0x000007FEF50C0000-0x000007FEF5A5D000-memory.dmp
memory/2372-3-0x0000000000310000-0x0000000000390000-memory.dmp
memory/2372-4-0x000007FEF50C0000-0x000007FEF5A5D000-memory.dmp
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
| MD5 | 2773e3dc59472296cb0024ba7715a64e |
| SHA1 | 27d99fbca067f478bb91cdbcb92f13a828b00859 |
| SHA256 | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7 |
| SHA512 | 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262 |
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
| MD5 | 2773e3dc59472296cb0024ba7715a64e |
| SHA1 | 27d99fbca067f478bb91cdbcb92f13a828b00859 |
| SHA256 | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7 |
| SHA512 | 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262 |
memory/2372-12-0x000007FEF50C0000-0x000007FEF5A5D000-memory.dmp
memory/2028-11-0x0000000000AC0000-0x0000000000B10000-memory.dmp
memory/2028-14-0x0000000002020000-0x00000000020A0000-memory.dmp
memory/2028-13-0x000007FEF50C0000-0x000007FEF5A5D000-memory.dmp
memory/2028-15-0x000007FEF50C0000-0x000007FEF5A5D000-memory.dmp
memory/2028-16-0x000007FEF50C0000-0x000007FEF5A5D000-memory.dmp
memory/2028-17-0x0000000002020000-0x00000000020A0000-memory.dmp
C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif.fun
| MD5 | 580ee0344b7da2786da6a433a1e84893 |
| SHA1 | 60f8c4dd5457e9834f5402cb326b1a2d3ca0ba7e |
| SHA256 | 98b6c2ddfefc628d03ceaef9d69688674a6bc32eb707f9ed86bc8c75675c4513 |
| SHA512 | 356d2cdea3321e894b5b46ad1ea24c0e3c8be8e3c454b5bd300b7340cbb454e71fc89ca09ea0785b373b483e67c2f6f6bb408e489b0de4ff82d5ed69a75613ba |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\DNTException\container.dat.fun
| MD5 | 8ebcc5ca5ac09a09376801ecdd6f3792 |
| SHA1 | 81187142b138e0245d5d0bc511f7c46c30df3e14 |
| SHA256 | 619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880 |
| SHA512 | cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650 |
memory/2028-1987-0x0000000002020000-0x00000000020A0000-memory.dmp
memory/2028-1990-0x0000000002020000-0x00000000020A0000-memory.dmp
memory/1652-1992-0x0000000140000000-0x00000001405E8000-memory.dmp
memory/1652-1991-0x0000000140000000-0x00000001405E8000-memory.dmp
memory/1652-1993-0x0000000140000000-0x00000001405E8000-memory.dmp
memory/1652-1994-0x0000000140000000-0x00000001405E8000-memory.dmp
memory/1652-1995-0x0000000000550000-0x0000000000551000-memory.dmp
memory/2028-1996-0x000007FEF50C0000-0x000007FEF5A5D000-memory.dmp
memory/1652-1997-0x0000000000550000-0x0000000000551000-memory.dmp
memory/2172-1998-0x0000000002AC0000-0x0000000002AC1000-memory.dmp
memory/548-1999-0x00000000027F0000-0x00000000027F1000-memory.dmp