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03-08-2024 03:16
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240803-dmj7sswcne 10Analysis
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max time kernel
359s -
max time network
359s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
03-08-2024 03:16
Static task
static1
Behavioral task
behavioral1
Sample
rBlbqI2.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
rBlbqI2.exe
Resource
win10v2004-20240802-en
General
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Target
rBlbqI2.exe
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Size
291KB
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MD5
2fec9bf50de5395f799b23a1099b10d6
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SHA1
6000969e75d7d7a3fa1b908bdb9d5daeb5f2534e
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SHA256
df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763
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SHA512
5f6885fb1940ee4f84507e2b7929f637d8f264a5c77329aeae31803b772608ea93370177017f90f6f8d8bc9e0b30eb8607ed120d4ead68104fd70feec71a9ab8
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SSDEEP
6144:pdSK04ETTZ+4TBpvjLCnVlBpevKBauJirVuD05VSKJ:poL4EnU4T/vjLeVlayRihuA5D
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 (2142) 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
Processes:
drpbx.exepid Process 1896 drpbx.exe -
Loads dropped DLL 1 IoCs
Processes:
rBlbqI2.exepid Process 2708 rBlbqI2.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
Processes:
rBlbqI2.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" rBlbqI2.exe -
Drops file in Program Files directory 64 IoCs
Processes:
drpbx.exedescription ioc Process File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.preferences_3.5.200.v20140224-1527.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\ja-JP\js\RSSFeeds.js drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\ja-JP\js\library.js drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\FormsPrintTemplateRTL.html.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveProjectToolset\ProjectTaskIcon.jpg.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.p2.ui.overridden_5.5.0.165303.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\images\curl.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.emf.common_2.10.1.v20140901-1043\license.html.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-modules-print.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler-selector-api.xml drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Clarity.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\de-DE\gadget.xml drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_right_disabled.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\images\play_rest.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_gray_snow.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\rtf_justify.gif drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-options_ja.jar.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-profiler_ja.jar.zemblax drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\OldAge\NavigationLeft_ButtonGraphic.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\SoftBlue\tab_on.gif.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\de-DE\settings.html drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\34.png drpbx.exe File created C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-icons_222222_256x240.png.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\settings_box_bottom.png 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\Document Themes 14\Theme Colors\Equity.xml drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\it-IT\gadget.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.common_5.5.0.165303.jar drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\en-US\js\clock.js drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\update_tracking\org-netbeans-lib-profiler-charts.xml.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\button_mid_over.gif drpbx.exe File created C:\Program Files\7-Zip\Lang\uz.txt.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\STS2\background.gif.zemblax drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Push\pushplaysubpicture.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_windy.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.core.commands.nl_ja_4.4.0.v20140623020002.jar.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.widgets.nl_zh_4.4.0.v20140623020002.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.help_2.0.102.v20141007-2301\epl-v10.html drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-api-annotations-common.xml.zemblax drpbx.exe File created C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-bg_diagonals-thick_20_666666_40x40.png.zemblax drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\rollinghills.png drpbx.exe File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AppConfig.zip.zemblax 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\Memories\Notes_btn-back-static.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\en-US\clock.html drpbx.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\requests\vlm_cmd.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\boot.jar 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\feedback.gif.zemblax drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Pine_Lumber.jpg drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx.ui.zh_CN_5.5.0.165303.jar drpbx.exe File created C:\Program Files\VideoLAN\VLC\lua\http\dialogs\equalizer_window.html.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\1.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\bg_Country.gif.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rcp.intro.ja_5.5.0.165303.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.osgi.nl_zh_4.4.0.v20140623020002.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-autoupdate-services.jar drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\button_right.gif.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveProjectToolset\ZoomIconsMask.bmp drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-application_ja.jar.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\drag.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.core.nl_zh_4.4.0.v20140623020002.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.http.jetty_3.0.200.v20131021-1843.jar.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler-heapwalker.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked-loading.png drpbx.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
drpbx.exerBlbqI2.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language drpbx.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rBlbqI2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
rBlbqI2.exedrpbx.exedescription pid Process Token: SeDebugPrivilege 2708 rBlbqI2.exe Token: SeDebugPrivilege 1896 drpbx.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
rBlbqI2.exedescription pid Process procid_target PID 2708 wrote to memory of 1896 2708 rBlbqI2.exe 30 PID 2708 wrote to memory of 1896 2708 rBlbqI2.exe 30 PID 2708 wrote to memory of 1896 2708 rBlbqI2.exe 30 PID 2708 wrote to memory of 1896 2708 rBlbqI2.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\rBlbqI2.exe"C:\Users\Admin\AppData\Local\Temp\rBlbqI2.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\rBlbqI2.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1896
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
160B
MD5000e8c41d4a15fb34d0be0dbb56e3778
SHA100c4eae64ee6239d7c65d819c6ce1ac329224f8c
SHA2568bdfa6a5b7de345cf0d4fe0e9c17d8b0e9db26d58b05b1b2ebbb3a05a068ff28
SHA512775d832eb8ab73e4a93789917dca69edb6c91fbb426e02acf7c6e213ffb4575776187209d1c471fbf57c4621ea3c23d9850f6dfc2770d62c17de9d66710800af
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C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\epl-v10.html.zemblax
Filesize12KB
MD5bd42ba47ff97fd7e395c90f79e0f9508
SHA1c2d8069ff6d72f3c63eeeac23933e5620f649d9d
SHA2563ad6f0a5c15cd3e24aa59e9687649e0d8d8b85789f3feef68e22b61a34a183e5
SHA5124eb6b58c46225f6e96bf41177892131384507cd8437e314426b797797c10960db52b84abd1fbf3cd845d1ed4bb8c67d2be3099a9ff5379a04d059b0557ef7fca
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C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\license.html.zemblax
Filesize8KB
MD529c6678d44aa7966ae163d70dd9f3661
SHA104e2608b9497905befec2c9c74931cdd14c754e8
SHA256f7634f4769d57b1fd7ff257cafd60a0b309194e610202dfd26fc5113d0abf834
SHA512e80a6a0270d20e255f84ee6ef285b610b79731058f88272b8246e4f0c97222cebf2113d7ae70a1a145c0bec2a94fea5cb5abff0203a8be64c634a9b9b6a3b1b6
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Filesize
291KB
MD52fec9bf50de5395f799b23a1099b10d6
SHA16000969e75d7d7a3fa1b908bdb9d5daeb5f2534e
SHA256df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763
SHA5125f6885fb1940ee4f84507e2b7929f637d8f264a5c77329aeae31803b772608ea93370177017f90f6f8d8bc9e0b30eb8607ed120d4ead68104fd70feec71a9ab8
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Filesize
16B
MD5cfdae8214d34112dbee6587664059558
SHA1f649f45d08c46572a9a50476478ddaef7e964353
SHA25633088cb514406f31e3d96a92c03294121ee9f24e176f7062625c2b36bee7a325
SHA512c260f2c223ecbf233051ac1d6a1548ad188a2777085e9d43b02da41b291ff258e4c506f99636150847aa24918c7bbb703652fef2fe55b3f50f85b5bd8dd5f6e3