Analysis
- max time kernel
30s - max time network
17s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
11/09/2024, 05:10
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
jigsaw.exe
Resource
win7-20240903-en
windows7-x64
7 signatures
30 seconds
Behavioral task
behavioral2
Sample
jigsaw.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
8 signatures
30 seconds
General
- Target jigsaw.exe
- Size 283KB
- Sample240911-ftnjxavekh
- SHA256 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
- MD5 2773e3dc59472296cb0024ba7715a64e
- SHA1 27d99fbca067f478bb91cdbcb92f13a828b00859
- SHA512 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
- SSDEEP 6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
- Renames multiple (215) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation jigsaw.exe - Executes dropped EXE 1 IoCs
pid Process 2624 drpbx.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" jigsaw.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Windows Media Player\Media Renderer\connectionmanager_dmr.xml drpbx.exe File opened for modification C:\Program Files\Windows NT\TableTextService\TableTextServiceDaYi.txt drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.VisualElementsManifest.xml drpbx.exe File opened for modification C:\Program Files\Java\jre-1.8\README.txt drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0000-1000-0000000FF1CE.xml drpbx.exe File created C:\Program Files\VideoLAN\VLC\NEWS.txt.fun drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\hu.txt drpbx.exe File created C:\Program Files\7-Zip\Lang\si.txt.fun drpbx.exe File opened for modification C:\Program Files\Java\jdk-1.8\javafx-src.zip drpbx.exe File opened for modification C:\Program Files\VideoLAN\VLC\AUTHORS.txt drpbx.exe File opened for modification C:\Program Files (x86)\Windows NT\TableTextService\TableTextServiceDaYi.txt drpbx.exe File created C:\Program Files\7-Zip\Lang\hi.txt.fun drpbx.exe File created C:\Program Files\7-Zip\Lang\mk.txt.fun drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0000-1000-0000000FF1CE.xml drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-006E-0409-1000-0000000FF1CE.xml drpbx.exe File opened for modification C:\Program Files\SendTest.mp4 drpbx.exe File created C:\Program Files\7-Zip\Lang\sw.txt.fun drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.NET.Native.Runtime.2.2_2.2.27328.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.513.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\fb_blank_profile_portrait.png drpbx.exe File created C:\Program Files\7-Zip\Lang\ar.txt.fun drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\cy.txt drpbx.exe File created C:\Program Files\7-Zip\Lang\pl.txt.fun drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\tg.txt drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\ky.txt drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\Crashpad\settings.dat drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\da.txt drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\ka.txt drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.NET.Native.Framework.1.7_1.7.25531.0_x64__8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File created C:\Program Files\GroupDeny.docx.fun drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\lij.txt drpbx.exe File opened for modification C:\Program Files\Windows Media Player\Media Renderer\avtransport.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\offlineUtilities.js drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\ug.txt drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00A1-0409-1000-0000000FF1CE.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftEdge.Stable_92.0.902.67_neutral__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\gu.txt drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\uk.txt drpbx.exe File opened for modification C:\Program Files\Windows Media Player\Media Renderer\RenderingControl.xml drpbx.exe File created C:\Program Files\dotnet\LICENSE.txt.fun drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.UI.Xaml.2.0_2.1810.18004.0_x64__8wekyb3d8bbwe\logo.png drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\BuildInfo.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\ba.txt drpbx.exe File created C:\Program Files\7-Zip\Lang\sv.txt.fun drpbx.exe File opened for modification C:\Program Files\Java\jdk-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt drpbx.exe File opened for modification C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME.txt drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Paint_PDP.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File created C:\Program Files\Mozilla Firefox\firefox.VisualElementsManifest.xml.fun drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\nn.txt drpbx.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4964 wrote to memory of 2624 4964 jigsaw.exe 85 PID 4964 wrote to memory of 2624 4964 jigsaw.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\jigsaw.exe"C:\Users\Admin\AppData\Local\Temp\jigsaw.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4964 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\jigsaw.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
PID:2624
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
- Size 283KB
- SHA256 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
- MD5 2773e3dc59472296cb0024ba7715a64e
- SHA1 27d99fbca067f478bb91cdbcb92f13a828b00859
- SHA512 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
- SSDEEP 6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
- MD5 SHA1 SHA512 SSDEEP