Analysis
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max time kernel
153s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
08-10-2023 17:05
Behavioral task
behavioral1
Sample
NEAS.tmp_JC.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
NEAS.tmp_JC.exe
Resource
win10v2004-20230915-en
General
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Target
NEAS.tmp_JC.exe
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Size
5.3MB
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MD5
79b6d4f066d1875b18de19ad54177fa7
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SHA1
d99188afd625268875b1050bd561a72c51d51d38
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SHA256
95b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c
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SHA512
365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6
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SSDEEP
49152:CGUKMViI+OozP3w5C49ckglrOugdutUeUCyLQrO/LH:IK0iI+HPA
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 564 drpbx.exe -
Loads dropped DLL 1 IoCs
pid Process 2332 NEAS.tmp_JC.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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resource yara_rule behavioral1/memory/2332-0-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral1/memory/2332-43-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral1/files/0x000700000001560d-168.dat upx behavioral1/files/0x000700000001560d-171.dat upx behavioral1/memory/2332-172-0x0000000004BF0000-0x0000000004C44000-memory.dmp upx behavioral1/files/0x000700000001560d-170.dat upx behavioral1/memory/564-176-0x0000000002240000-0x0000000002280000-memory.dmp upx behavioral1/memory/564-177-0x0000000002240000-0x0000000002280000-memory.dmp upx behavioral1/memory/2332-175-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral1/memory/564-187-0x0000000000400000-0x0000000000454000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" NEAS.tmp_JC.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.security.win32.x86_64_1.0.100.v20130327-1442.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.babel.nls_eclipse_zh_4.4.0.v20140623020002\epl-v10.html drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\ViewHeaderPreview.jpg.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveProjectToolset\ZoomIcons.jpg.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-autoupdate-cli_zh_CN.jar.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\AppConfigurationInternal.zip.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\search_background.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\deploy\splash.gif drpbx.exe File created C:\Program Files\Java\jre7\lib\images\cursors\win32_CopyNoDrop32x32.gif.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-autoupdate-ui.xml.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-api-search.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\locale\org-openide-util-lookup_ja.jar drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\images\rss_headline_glow_floating.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\TaskbarIconImages256Colors.bmp.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\images\item_hover_floating.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\it-IT\settings.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.updatechecker.nl_zh_4.4.0.v20140623020002.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-host-views.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-windows_zh_CN.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-host-remote.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\drag.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\ja-JP\clock.html drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-modules-profiler-api.jar.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\EmbeddedView.jpg.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Resource.zip.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\QuickStyles\Traditional.dotx.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-api-search.xml.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsColorChart.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-lib-profiler-charts_zh_CN.jar drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\STS2\header.gif.zemblax drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskpred.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.jetty.security_8.1.14.v20131031.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.rcp_4.3.100.v20141007-2301.jar 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 created C:\Program Files\Java\jdk1.7.0_80\include\win32\jni_md.h.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\fr-FR\settings.html drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_black_windy.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\de-DE\js\settings.js drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_GreenTea.gif drpbx.exe File opened for modification C:\Program Files\Windows Media Player\Network Sharing\wmpnss_color32.bmp drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyrun.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\ja-JP\settings.html drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\images\next_down.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\ja-JP\gadget.xml drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\CPU.Gadget\es-ES\js\cpu.js drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-lib-profiler_zh_CN.jar.zemblax drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\FlipPage\203x8subpicture.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\Sounds\People\Whistling.wav drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\button_left_over.gif 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 opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\EmptyDatabase.zip drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.swt_0.11.101.v20140818-1343.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwruklm.dat drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-jmx.xml drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\CommonData\CommsIncomingImageMask.bmp.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Microsoft.Office.BusinessData.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\images\triangle.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.databinding.observable.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.core.resources_3.9.1.v20140825-1431.jar.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Currency.Gadget\fr-FR\js\service.js drpbx.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\Adobe\symbol.txt 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\html\dcommon\gifs\masterix.gif drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\NavigationLeft_ButtonGraphic.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_moon-first-quarter_partly-cloudy.png drpbx.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2332 NEAS.tmp_JC.exe Token: SeDebugPrivilege 564 drpbx.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2332 wrote to memory of 564 2332 NEAS.tmp_JC.exe 28 PID 2332 wrote to memory of 564 2332 NEAS.tmp_JC.exe 28 PID 2332 wrote to memory of 564 2332 NEAS.tmp_JC.exe 28 PID 2332 wrote to memory of 564 2332 NEAS.tmp_JC.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.tmp_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.tmp_JC.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2332 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\NEAS.tmp_JC.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:564
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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
5.3MB
MD579b6d4f066d1875b18de19ad54177fa7
SHA1d99188afd625268875b1050bd561a72c51d51d38
SHA25695b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c
SHA512365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6
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Filesize
5.3MB
MD579b6d4f066d1875b18de19ad54177fa7
SHA1d99188afd625268875b1050bd561a72c51d51d38
SHA25695b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c
SHA512365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6
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Filesize
16B
MD5cfdae8214d34112dbee6587664059558
SHA1f649f45d08c46572a9a50476478ddaef7e964353
SHA25633088cb514406f31e3d96a92c03294121ee9f24e176f7062625c2b36bee7a325
SHA512c260f2c223ecbf233051ac1d6a1548ad188a2777085e9d43b02da41b291ff258e4c506f99636150847aa24918c7bbb703652fef2fe55b3f50f85b5bd8dd5f6e3
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Filesize
5.3MB
MD579b6d4f066d1875b18de19ad54177fa7
SHA1d99188afd625268875b1050bd561a72c51d51d38
SHA25695b7cfcdbe25fce19e887510d5da55ffdff66b3ef6db7400977f9bb94f9fec2c
SHA512365ac763dfd0986ad06acfc6b5d6a1c124ec8816d5a5ddc05f4145a91bb6fd50b7e97b4fa3d309adfe4995f57375583c619d919ecdcc1b3c792cdef9e6414cd6