Analysis
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max time kernel
1804s -
max time network
1567s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
19/11/2023, 18:53
Behavioral task
behavioral1
Sample
NEAS.tmp_JC.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
NEAS.tmp_JC.exe
Resource
win10-20231020-en
Behavioral task
behavioral3
Sample
NEAS.tmp_JC.exe
Resource
win10v2004-20231023-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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Renames multiple (2106) 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 1572 drpbx.exe -
Loads dropped DLL 1 IoCs
pid Process 1980 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/1980-0-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral1/files/0x0007000000018b17-166.dat upx behavioral1/files/0x0007000000018b17-169.dat upx behavioral1/files/0x0007000000018b17-168.dat upx behavioral1/memory/1572-170-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral1/memory/1980-175-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral1/memory/1572-357-0x0000000000400000-0x0000000000454000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1154728922-3261336865-3456416385-1000\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\visualvm\platform\config\Modules\org-netbeans-core-multiview.xml drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\mn.txt drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsjpn.xml drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Notes_INTRO_BG.wmv drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\en-US\js\RSSFeeds.js drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.equinox.p2.rcp.feature_1.2.0.v20140523-0116\license.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-progress-ui.jar drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\icon.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_pt_BR.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.forms_3.6.100.v20140422-1825.jar.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\it-IT\js\clock.js drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.director.app.nl_ja_4.4.0.v20140623020002.jar drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\rtf_alignleft.gif drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-modules-masterfs.xml drpbx.exe File created C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-icons_ffffff_256x240.png.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Templates\1033\ApothecaryNewsletter.dotx.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\mc.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\images\calendar_double.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_black_moon-full_partly-cloudy.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\timer_over.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-sampler.xml.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-modules-appui_ja.jar.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\SectionHeading.jpg.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\it-IT\picturePuzzle.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.ui.sdk_1.0.300.v20140407-1803.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.help.ui_4.0.100.v20140401-0608.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.text_3.5.300.v20130515-1451.jar drpbx.exe File opened for modification C:\Program Files\Windows Media Player\Network Sharing\wmpnss_bw48.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Black Tie.xml drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\button_right_mouseout.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_blue_snow.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\ja-JP\js\weather.js drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-modules-sampler.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-text_ja.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\prodbig.gif.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\logo.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\settings_box_bottom.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-attach_zh_CN.jar.zemblax 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\indxicon.gif drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Heart_ButtonGraphic.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.help_2.0.102.v20141007-2301\feature.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-autoupdate-services_ja.jar drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\btn-next-static.png drpbx.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\review_shared.gif drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\InformationIcon.jpg drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\images\bNext.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\STS2\background.gif.zemblax drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\ko.txt drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\Sounds\People\Whistling.wav.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-favorites.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-modules-profiler-oql.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.bidi_0.10.0.v20130327-1442.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.touchpoint.natives.nl_ja_4.4.0.v20140623020002.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.preferences_3.5.200.v20140224-1527.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.e4.rcp_1.3.100.v20141007-2033\epl-v10.html drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwrdeulm.dat drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\drag.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_black_moon-last-quarter.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_gray_hail.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.di.nl_ja_4.4.0.v20140623020002.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.feature_1.1.0.v20140827-1444\about.html.zemblax drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Soft Blue.htm drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Apex.xml drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Technic.xml 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 1980 NEAS.tmp_JC.exe Token: SeDebugPrivilege 1572 drpbx.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1980 wrote to memory of 1572 1980 NEAS.tmp_JC.exe 27 PID 1980 wrote to memory of 1572 1980 NEAS.tmp_JC.exe 27 PID 1980 wrote to memory of 1572 1980 NEAS.tmp_JC.exe 27 PID 1980 wrote to memory of 1572 1980 NEAS.tmp_JC.exe 27
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:1980 -
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:1572
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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