jigsaw | 0f5a2e2efc1284a209edf473789e3ae46ac05c72d0fc1eaea809b400138af5d6

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
16/03/2025, 10:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

first_sample.exe
Size

148KB
MD5

dfcb8a4380fcb5652aefe9d3093b9f3b
SHA1

25dfbba6d7b1dd749b47a4becd56245df167226f
SHA256

0f5a2e2efc1284a209edf473789e3ae46ac05c72d0fc1eaea809b400138af5d6
SHA512

9c817a5ee0d246219a395156ecc52ed1b9414d6c533d521222ca9b7fcbb49f24dc72721d7c28ac41046d10b6d173211e78150517fbfafa07949d80895b5ceaff
SSDEEP

3072:PYNTpyq6PtG8vSSdq1MjRlQV6F6aClbgsSGOi:PGcPtG8vv6gxKbgs

Score

10^/10

jigsaw persistence ransomware spyware stealer

Malware Config

Signatures

Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
ransomware jigsaw
Jigsaw family
jigsaw
Renames multiple (2000) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Executes dropped EXE 1 IoCs

pid	Process
2632	drpbx.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	first_sample.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\win32_LinkNoDrop32x32.gif	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\viewDblClick.js	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveProjectToolset\ProjectTaskIcon.jpg	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-api-search.xml	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-actions_zh_CN.jar.fun	drpbx.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\WhiteDot.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\StopIconMask.bmp	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-keyring-impl_zh_CN.jar.fun	drpbx.exe
File created	C:\Program Files (x86)\Microsoft Office\Templates\1033\BlackTieResume.dotx.fun	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.components.ui.ja_5.5.0.165303.jar	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.flightrecorder.controlpanel.ui.ja_5.5.0.165303.jar	drpbx.exe
File created	C:\Program Files\Microsoft Office\Office14\Mso Example Setup File A.txt.fun	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.fun	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-sendopts.xml.fun	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\CommonData\AlertImage_FileHighMask.bmp	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\ModuleAutoDeps\org-netbeans-modules-queries.xml	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-lib-profiler.xml	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Templates\1033\Training.potx	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\images\Gadget_Main_Background_QuickLaunch.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\btn_search_up.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\button_right_over.gif	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler-attach.xml	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\8.png	drpbx.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base.xml	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-execution.xml.fun	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\logo.png	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_divider.png	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\39.png	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\greenStateIcon.png	drpbx.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\Passport.wmv	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\settings_left_rest.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\ja-JP\gadget.xml	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.swt.nl_ja_4.4.0.v20140623020002.jar.fun	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-openide-text.jar	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\icons\send-email-16.png	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-print_zh_CN.jar	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-attach_zh_CN.jar	drpbx.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\NavigationLeft_ButtonGraphic.png	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\db\lib\derbytools.jar.fun	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\stop_collection_data.gif	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx.ja_5.5.0.165303.jar.fun	drpbx.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\rectangle_highlights_Thumbnail.bmp	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui_5.5.0.165303.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\help.gif.fun	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_moon-waxing-crescent.png	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-lib-profiler-ui_ja.jar.fun	drpbx.exe
File opened for modification	C:\Program Files\Java\jre7\lib\management-agent.jar	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_fr.jar	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\flower.png	drpbx.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.metadata.repository.nl_ja_4.4.0.v20140623020002.jar.fun	drpbx.exe
File created	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Swirl\background.gif.fun	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\distribute_form.gif	drpbx.exe
File created	C:\Program Files (x86)\Microsoft Office\Office14\Groove\XML Files\StarterToolTemplates.xml.fun	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\en-US\js\settings.js	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\Java\jdk1.7.0_80\lib\visualvm\platform\config\ModuleAutoDeps\org-openide-execution.xml	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\core\locale\org-openide-filesystems_ja.jar	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\it-IT\js\slideShow.js	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Swirl\header.gif	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\SlideShow.Gadget\images\pause_down.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\de-DE\gadget.xml	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\25.png	drpbx.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_black_moon-full_partly-cloudy.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Currency.Gadget\images\graph_down.png	drpbx.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 2632	2952	first_sample.exe	30
PID 2952 wrote to memory of 2632	2952	first_sample.exe	30
PID 2952 wrote to memory of 2632	2952	first_sample.exe	30

C:\Users\Admin\AppData\Local\Temp\first_sample.exe
"C:\Users\Admin\AppData\Local\Temp\first_sample.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
  "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\first_sample.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif.fun

Filesize
160B

MD5
580ee0344b7da2786da6a433a1e84893

SHA1
60f8c4dd5457e9834f5402cb326b1a2d3ca0ba7e

SHA256
98b6c2ddfefc628d03ceaef9d69688674a6bc32eb707f9ed86bc8c75675c4513

SHA512
356d2cdea3321e894b5b46ad1ea24c0e3c8be8e3c454b5bd300b7340cbb454e71fc89ca09ea0785b373b483e67c2f6f6bb408e489b0de4ff82d5ed69a75613ba

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

Filesize
148KB

MD5
dfcb8a4380fcb5652aefe9d3093b9f3b

SHA1
25dfbba6d7b1dd749b47a4becd56245df167226f

SHA256
0f5a2e2efc1284a209edf473789e3ae46ac05c72d0fc1eaea809b400138af5d6

SHA512
9c817a5ee0d246219a395156ecc52ed1b9414d6c533d521222ca9b7fcbb49f24dc72721d7c28ac41046d10b6d173211e78150517fbfafa07949d80895b5ceaff

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\DNTException\container.dat.fun

Filesize
16B

MD5
8ebcc5ca5ac09a09376801ecdd6f3792

SHA1
81187142b138e0245d5d0bc511f7c46c30df3e14

SHA256
619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880

SHA512
cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650

Download Submit
memory/2632-10-0x000007FEF6700000-0x000007FEF709D000-memory.dmp

Filesize
9.6MB

Download
memory/2632-9-0x000007FEF6700000-0x000007FEF709D000-memory.dmp

Filesize
9.6MB

Download
memory/2632-12-0x000007FEF6700000-0x000007FEF709D000-memory.dmp

Filesize
9.6MB

Download
memory/2632-13-0x000007FEF6700000-0x000007FEF709D000-memory.dmp

Filesize
9.6MB

Download
memory/2952-0-0x000007FEF69BE000-0x000007FEF69BF000-memory.dmp

Filesize
4KB

Download
memory/2952-1-0x000007FEF6700000-0x000007FEF709D000-memory.dmp

Filesize
9.6MB

Download
memory/2952-2-0x000007FEF6700000-0x000007FEF709D000-memory.dmp

Filesize
9.6MB

Download
memory/2952-11-0x000007FEF6700000-0x000007FEF709D000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads