jigsaw | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7

Analysis

max time kernel
120s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20221111-es
resource tags

arch:x64arch:x86image:win10v2004-20221111-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
13-01-2023 03:55

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General

Target

jigsaw.exe
Size

283KB
MD5

2773e3dc59472296cb0024ba7715a64e
SHA1

27d99fbca067f478bb91cdbcb92f13a828b00859
SHA256

3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
SHA512

6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
SSDEEP

6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX

Score

10^/10

jigsaw persistence ransomware

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

pid	Process
4228	drpbx.exe

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File created	C:\Users\Admin\Pictures\DenyAdd.raw.fun	drpbx.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	jigsaw.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\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 created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0000-1000-0000000FF1CE.xml.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\msapp-error.js	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\WindowsPhoneReservedAppInfo.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\AppxManifest.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 opened for modification	C:\Program Files\7-Zip\Lang\ps.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\vi.txt.fun	drpbx.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0409-1000-0000000FF1CE.xml.fun	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\wmpnss_color32.bmp	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0000-1000-0000000FF1CE.xml.fun	drpbx.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00C1-0000-1000-0000000FF1CE.xml.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00_14.0.27323.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\Media Renderer\DMR_120.jpg	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\Media Renderer\RenderingControl.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hi.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\mn.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_2020.1906.55.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\pa-in.txt	drpbx.exe
File created	C:\Program Files\VideoLAN\VLC\THANKS.txt.fun	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\ps.txt.fun	drpbx.exe
File created	C:\Program Files\GroupMove.xla.fun	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\nn.txt	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\wmpnss_color48.bmp	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\az.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\sa.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_neutral_split.scale-200_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0090-0000-1000-0000000FF1CE.xml.fun	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.NET.Native.Framework.2.2_2.2.27405.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\ConnectionManager.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\eo.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0409-1000-0000000FF1CE.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\eo.txt	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.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\InstallRead.zip.fun	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ba.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Third Party Notices.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\DisableWait.xml.fun	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\gu.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\BuildInfo.xml	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\AppXManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\THIRDPARTYLICENSEREADME-JAVAFX.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sa.txt	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00C1-0000-1000-0000000FF1CE.xml	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0000-1000-0000000FF1CE.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\networkmanifest.xml	drpbx.exe
File created	C:\Program Files\Microsoft Office\FileSystemMetadata.xml.fun	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\pa-in.txt.fun	drpbx.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Edge.dat	drpbx.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 4228	2864	jigsaw.exe	83
PID 2864 wrote to memory of 4228	2864	jigsaw.exe	83

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:2864
- C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
  "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\jigsaw.exe
  2⤵
  - Executes dropped EXE
  - Modifies extensions of user files
  - Drops file in Program Files directory
  PID:4228

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
283KB

MD5
2773e3dc59472296cb0024ba7715a64e

SHA1
27d99fbca067f478bb91cdbcb92f13a828b00859

SHA256
3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7

SHA512
6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262

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

Filesize
283KB

MD5
2773e3dc59472296cb0024ba7715a64e

SHA1
27d99fbca067f478bb91cdbcb92f13a828b00859

SHA256
3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7

SHA512
6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262

Download Submit
memory/2864-132-0x00007FF810520000-0x00007FF810F56000-memory.dmp

Filesize
10.2MB

Download
memory/4228-136-0x00007FF810520000-0x00007FF810F56000-memory.dmp

Filesize
10.2MB

Download