jigsaw | e1c7d34fc0138d018f9e947af3dac7ec4d0fe9751dd1bc4424b185a92ca4bc51

General

Target

Compito matematica.pdf.exe
Size

606KB
MD5

4e890ba5a4f6fd63727c0005daa654dd
SHA1

e9ade30c93942c3f5928522552dd01eb25a9e9db
SHA256

e1c7d34fc0138d018f9e947af3dac7ec4d0fe9751dd1bc4424b185a92ca4bc51
SHA512

177badec70b21ed1b94a8a235535249c94b72e21fc62bae1e8c32e44b9495006687a2ef7545256ddaa2c167d870515de45e9aea524e3081135fa901532af6477

Score

10^/10

jigsaw persistence ransomware spyware

Malware Config

Signatures

Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
ransomware jigsaw
Executes dropped EXE 1 IoCs

Processes:

drpbx.exe

pid process

1764 drpbx.exe

pid	process
1764	drpbx.exe

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

drpbx.exe

description	ioc	process
File created	C:\Users\Admin\Pictures\RequestTest.raw.math	drpbx.exe
File created	C:\Users\Admin\Pictures\SwitchProtect.png.math	drpbx.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Compito matematica.pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	Compito matematica.pdf.exe

Drops file in Program Files directory 16119 IoCs

Processes:

drpbx.exe

description	ioc	process
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\9434_32x32x32.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsCamera_2017.125.40.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraAppList.contrast-black_scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\small\ir_16x11.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\S_IlluEmptyStateCCFiles_280x192.svg	drpbx.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\en_get.svg.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\4665_24x24x32.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\ThemePreview\Themes\classic.jpg	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\6100_20x20x32.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Thumbnails\Sticker_Icon_Skull.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxCalendarMediumTile.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.18.56.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherIcons\30x30\69.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\tools\dot_2x.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\activity-badge\js\nls\ro-ro\ui-strings.js	drpbx.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\walk-through\js\nls\de-de\ui-strings.js.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNoteSmallTile.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\Images\PrintAndShare\Glyph_0xea22.png	drpbx.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_organize_18.svg.math	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\file_types\fillandsign.svg	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\sl-si\ui-strings.js	drpbx.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\desktop-connector-files\js\nls\eu-es\ui-strings.js.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\OutlookMailLargeTile.scale-400.png	drpbx.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-180.png.math	drpbx.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.scale-80.png.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Emoticons\large\giggle.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\SupplementalDictionaries\en_CA\added.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.XboxApp_25.25.13009.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\GamesXboxHubMedTile.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.e4.ui.model.workbench.nl_ja_4.4.0.v20140623020002.jar	drpbx.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.equinox.util_1.0.500.v20130404-1337.jar.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Buttons\GiveUp\GiveUp-up.mobile.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\themes\dark\adobe_sign_tag.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Assets\Workflow\Density_Selected_Hollow.png	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\com.jrockit.mc.console.historicaldata.ja_5.5.0.165303.jar	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.18.56.0_x64__8wekyb3d8bbwe\Assets\AppTiles\LiveTile\9px.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\MapsMedTile.scale-200.png	drpbx.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\update_tracking\org-netbeans-swing-tabcontrol.xml.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Messaging_3.26.24002.0_x64__8wekyb3d8bbwe\Assets\Square71x71Logo.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxA-Exchange.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.e4.core.contexts_1.3.100.v20140407-1019.jar	drpbx.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\images\Info2x.png.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\10290_20x20x32.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\SplashScreen\SolitaireUpperLeftImage_Large.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\nls\ko-kr\ui-strings.js	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\PopUp\Pop_up_Ok.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.16112.11601.0_neutral_resources.scale-150_8wekyb3d8bbwe\Assets\contrast-black\SmallLogo.scale-150_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Aquarium\aquarium_background.jpg	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Classic\mask\11s.png	drpbx.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\visualvm\modules\locale\org-netbeans-core_visualvm.jar.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Emoticons\small\toivo.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\small\re_16x11.png	drpbx.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\conticon.gif.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.16112.11621.0_x64__8wekyb3d8bbwe\Assets\Logo.scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Assets\SkypeAppList.targetsize-256_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\HowToPlay\Klondike\Goal_4.jpg	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\Assets\Logos\Square71x71\PaintSmallTile.scale-150.png	drpbx.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\js\nls\pt-br\ui-strings.js.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\Assets\InsiderHubSmallTile.scale-200_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\ProtectComplete.gif	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.16112.11601.0_neutral_resources.scale-150_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.OneConnect_2.1701.277.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\OneConnectMedTile.scale-125.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Assets\Workflow\NavColumn_Black\Icon_Supports.png	drpbx.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.help.webapp.nl_ja_4.4.0.v20140623020002.jar.math	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.18.56.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherIcons\30x30\178.png	drpbx.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\modules\locale\org-netbeans-modules-editor-mimelookup-impl_zh_CN.jar.math	drpbx.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

Compito matematica.pdf.exe

description	pid	process	target process
PID 656 wrote to memory of 1764	656	Compito matematica.pdf.exe	drpbx.exe
PID 656 wrote to memory of 1764	656	Compito matematica.pdf.exe	drpbx.exe

C:\Users\Admin\AppData\Local\Temp\Compito matematica.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Compito matematica.pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:656
- C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
  "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\Compito?matematica.pdf.exe
  2⤵
  - Executes dropped EXE
  - Modifies extensions of user files
  - Drops file in Program Files directory
  PID:1764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

MD5
4e890ba5a4f6fd63727c0005daa654dd

SHA1
e9ade30c93942c3f5928522552dd01eb25a9e9db

SHA256
e1c7d34fc0138d018f9e947af3dac7ec4d0fe9751dd1bc4424b185a92ca4bc51

SHA512
177badec70b21ed1b94a8a235535249c94b72e21fc62bae1e8c32e44b9495006687a2ef7545256ddaa2c167d870515de45e9aea524e3081135fa901532af6477

Download Submit
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

MD5
4e890ba5a4f6fd63727c0005daa654dd

SHA1
e9ade30c93942c3f5928522552dd01eb25a9e9db

SHA256
e1c7d34fc0138d018f9e947af3dac7ec4d0fe9751dd1bc4424b185a92ca4bc51

SHA512
177badec70b21ed1b94a8a235535249c94b72e21fc62bae1e8c32e44b9495006687a2ef7545256ddaa2c167d870515de45e9aea524e3081135fa901532af6477

Download Submit
memory/656-0-0x00007FFB85320000-0x00007FFB85CC0000-memory.dmp

Filesize
9.6MB

Download
memory/1764-1-0x0000000000000000-mapping.dmp

Download
memory/1764-4-0x00007FFB85320000-0x00007FFB85CC0000-memory.dmp

Filesize
9.6MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads