Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
24-11-2024 02:11
Static task
static1
Behavioral task
behavioral1
Sample
91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe
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Size
241KB
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MD5
91fb2e88d18489fa38e94db28fe6bbd4
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SHA1
d125dca1bc4ac43ddbf4e0d347c794a8d12d1c2b
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SHA256
b3956e268b4ec8b502d7079eb9a73e514d9ba813359a32ce473134eb231e5246
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SHA512
6b12c11e22df1ba9c956408a72b156a64c68f9ac08710da2f1560fc936e685f3f4e9b27bbf90054c0301648f8be6ceca1f1591f2db5e4a08b38ae0b6876348c2
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SSDEEP
6144:ymDjPbZVxYgAYigWlwkECvrpNFBVfPTj7+JVPzFl+fwF:VjXx1vWlaCDpNbt4FMY
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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Jigsaw family
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Renames multiple (1966) 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 1244 drpbx.exe -
Reads user/profile data of web browsers 3 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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" 91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\Welcome Tool\IconImagesMask.bmp.fun drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\HueCycle\NavigationUp_ButtonGraphic.png drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\images\settings_box_divider_right.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-queries.jar drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\grayStateIcon.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification.zh_CN_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.engine_2.3.0.v20140506-1720.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.babel.nls_eclipse_zh_4.4.0.v20140623020002\eclipse_update_120.jpg.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\sa-jdi.jar.fun drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Oriel.xml drpbx.exe File opened for modification C:\Program Files\Java\jre7\lib\deploy\splash.gif drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-coredump.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-api_zh_CN.jar.fun drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\divider-horizontal.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\7.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-applemenu.jar drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-core-output2.xml.fun drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-core-windows_ja.jar drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_moon-waning-gibbous.png drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.mbeanbrowser_5.5.0.165303.jar.fun 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\feature.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx.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.frameworkadmin.equinox.nl_ja_4.4.0.v20140623020002.jar drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_LightSpirit.gif drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\sl.txt drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\NavigationUp_SelectionSubpicture.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\WSSFilesToolIconImagesMask.bmp drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\fr-FR\js\slideShow.js drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\include\win32\jni_md.h.fun drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\44.png drpbx.exe File opened for modification C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\WinFXList.xml drpbx.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\images\Back-48.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\rtf_decreaseindent.gif.fun drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-lib-profiler-charts.xml.fun 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\doclib.gif drpbx.exe File opened for modification C:\Program Files\Windows NT\TableTextService\TableTextServiceSimplifiedZhengMa.txt drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\29.png drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\NotifierCloseButton.jpg.fun drpbx.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\symbols\ea-sym.xml drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\update_tracking\org-netbeans-lib-profiler.xml drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\CommonData\AlertImage_Auto.jpg drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-host-remote_ja.jar drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\bear_formatted_rgb6.wmv drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_box_left.png drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\NotifierUpArrow.jpg drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ecf.provider.filetransfer.httpclient4_1.0.800.v20140827-1444.jar.fun drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\PublicFunctions.js.fun 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 (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_black_foggy.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.databinding.nl_zh_4.4.0.v20140623020002.jar drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\novelty.png drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-applemenu_ja.jar drpbx.exe File opened for modification C:\Program Files\Java\jre7\lib\ext\sunmscapi.jar drpbx.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\6.png drpbx.exe File opened for modification C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\modern_s.png drpbx.exe File opened for modification C:\Program Files\Windows Media Player\Media Renderer\DMR_48.jpg 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\eclipse_update_120.jpg.fun drpbx.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_TexturedBlue.gif.fun drpbx.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-compat_zh_CN.jar drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Module.xml drpbx.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Vignette\NavigationLeft_ButtonGraphic.png drpbx.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\requests\status.xml drpbx.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-swing-plaf_ja.jar.fun drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Templates\1033\BillingStatement.xltx drpbx.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1720 wrote to memory of 1244 1720 91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe 31 PID 1720 wrote to memory of 1244 1720 91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe 31 PID 1720 wrote to memory of 1244 1720 91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\91fb2e88d18489fa38e94db28fe6bbd4_JaffaCakes118.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
PID:1244
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
160B
MD5580ee0344b7da2786da6a433a1e84893
SHA160f8c4dd5457e9834f5402cb326b1a2d3ca0ba7e
SHA25698b6c2ddfefc628d03ceaef9d69688674a6bc32eb707f9ed86bc8c75675c4513
SHA512356d2cdea3321e894b5b46ad1ea24c0e3c8be8e3c454b5bd300b7340cbb454e71fc89ca09ea0785b373b483e67c2f6f6bb408e489b0de4ff82d5ed69a75613ba
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Filesize
241KB
MD591fb2e88d18489fa38e94db28fe6bbd4
SHA1d125dca1bc4ac43ddbf4e0d347c794a8d12d1c2b
SHA256b3956e268b4ec8b502d7079eb9a73e514d9ba813359a32ce473134eb231e5246
SHA5126b12c11e22df1ba9c956408a72b156a64c68f9ac08710da2f1560fc936e685f3f4e9b27bbf90054c0301648f8be6ceca1f1591f2db5e4a08b38ae0b6876348c2
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Filesize
16B
MD58ebcc5ca5ac09a09376801ecdd6f3792
SHA181187142b138e0245d5d0bc511f7c46c30df3e14
SHA256619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880
SHA512cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650