Analysis
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max time kernel
144s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
02-10-2023 12:05
Behavioral task
behavioral1
Sample
053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe
Resource
win10v2004-20230915-en
General
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Target
053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe
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Size
249KB
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MD5
33862bca1fe73d44277e9ad4f0aa81e1
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SHA1
e900bf9dc2ad2b18e362c8d42ae8e8ce74fb3ff1
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SHA256
053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa
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SHA512
08c0ef71dcab39f772abf17b2c714bc89fe2add6fa61f734ea04c05770ad93a68e5fd9caf73d740c3c17dce1ebb0563b0bd82b20fc6a7e508a778bccbbf8384c
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SSDEEP
6144:VFVg9EpWQxCKDgqLSV2hIq45K4O4xDL1UnhvHNJ7h0W93MPNdLM7G:/VgGD4KNWViIq4pOOPipHlzsQ7
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 1528 drpbx.exe -
Loads dropped DLL 1 IoCs
pid Process 2424 053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.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/2424-0-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral1/files/0x000700000001605b-166.dat upx behavioral1/files/0x000700000001605b-170.dat upx behavioral1/files/0x000700000001605b-168.dat upx behavioral1/memory/1528-172-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral1/memory/2424-174-0x0000000000400000-0x0000000000454000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" 053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip\Lang\ga.txt drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Currency.Gadget\fr-FR\currency.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-api-search.xml drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Module.xml.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Urban.xml drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\Form_StatusImageMask.bmp.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\btn_search_down_BIDI.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.garbagecollector_1.0.200.v20131115-1210.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-openide-awt.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-openide-explorer.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-dialogs_zh_CN.jar drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Elemental.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_thunderstorm.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.babel.nls_eclipse_ja_4.4.0.v20140623020002\epl-v10.html.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\asl-v20.txt.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\validation.js.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\FormsViewAttachmentIconsMask.bmp.zemblax drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\Gadget_Main_Gradient.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\es-ES\calendar.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-core-multitabs.jar 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 (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Foundry.xml drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\29.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\5.png drpbx.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\ended_review_or_form.gif drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\XML Files\StarterNotificationDescriptors.xml.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\InfoPathOM\InfoPathOMV12\Microsoft.Office.InfoPath.xml.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\es-ES\settings.html drpbx.exe File opened for modification C:\Program Files (x86)\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\lib\jfluid-server.jar.zemblax drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\bg_OliveGreen.gif.zemblax drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\af.txt drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Newsprint.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.flightrecorder.ui_5.5.0.165303.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.touchpoint.eclipse.nl_ja_4.4.0.v20140623020002.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\core\locale\com-sun-tools-visualvm-modules-startup_zh_CN.jar drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Civic.xml.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_black_moon-waxing-crescent.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\en-US\js\slideShow.js drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\images\in_sidebar\slideshow_glass_frame.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsMacroTemplate.html.zemblax drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-keyring-fallback_zh_CN.jar.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Pushpin.xml drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\fr-FR\settings.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.feature_3.9.0.v20140827-1444\about.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.ssl.feature_1.0.0.v20140827-1444\epl-v10.html drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler-snaptracer.xml drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler_zh_CN.jar.zemblax drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\icon.png drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\keypad\kor-kor.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\ext\dnsns.jar drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\security\local_policy.jar drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\rtf_decreaseindent.gif 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\lib\mailapi.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\alt-rt.jar.zemblax drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\javaws.jar drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\20.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\alertIcon.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\fr-FR\js\weather.js drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-selector-ui_zh_CN.jar drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\GrooveFormsMetaData.xml.zemblax drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Tanspecks.jpg drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\title_trans_scene.wmv drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\bg_Earthy.gif.zemblax 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 2424 053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe Token: SeDebugPrivilege 1528 drpbx.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2424 wrote to memory of 1528 2424 053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe 28 PID 2424 wrote to memory of 1528 2424 053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe 28 PID 2424 wrote to memory of 1528 2424 053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe 28 PID 2424 wrote to memory of 1528 2424 053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe"C:\Users\Admin\AppData\Local\Temp\053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2424 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:1528
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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
249KB
MD533862bca1fe73d44277e9ad4f0aa81e1
SHA1e900bf9dc2ad2b18e362c8d42ae8e8ce74fb3ff1
SHA256053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa
SHA51208c0ef71dcab39f772abf17b2c714bc89fe2add6fa61f734ea04c05770ad93a68e5fd9caf73d740c3c17dce1ebb0563b0bd82b20fc6a7e508a778bccbbf8384c
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Filesize
249KB
MD533862bca1fe73d44277e9ad4f0aa81e1
SHA1e900bf9dc2ad2b18e362c8d42ae8e8ce74fb3ff1
SHA256053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa
SHA51208c0ef71dcab39f772abf17b2c714bc89fe2add6fa61f734ea04c05770ad93a68e5fd9caf73d740c3c17dce1ebb0563b0bd82b20fc6a7e508a778bccbbf8384c
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Filesize
16B
MD5cfdae8214d34112dbee6587664059558
SHA1f649f45d08c46572a9a50476478ddaef7e964353
SHA25633088cb514406f31e3d96a92c03294121ee9f24e176f7062625c2b36bee7a325
SHA512c260f2c223ecbf233051ac1d6a1548ad188a2777085e9d43b02da41b291ff258e4c506f99636150847aa24918c7bbb703652fef2fe55b3f50f85b5bd8dd5f6e3
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Filesize
249KB
MD533862bca1fe73d44277e9ad4f0aa81e1
SHA1e900bf9dc2ad2b18e362c8d42ae8e8ce74fb3ff1
SHA256053cec40ef1b8c148c4c1f798509e8b33e0f86f81555307b65e9fdffd670b9fa
SHA51208c0ef71dcab39f772abf17b2c714bc89fe2add6fa61f734ea04c05770ad93a68e5fd9caf73d740c3c17dce1ebb0563b0bd82b20fc6a7e508a778bccbbf8384c