jigsaw | 3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467

Resubmissions

09/10/2023, 22:48

231009-2rg51aah99 10

29/01/2023, 17:35

230129-v55pwsha8v 10

30/11/2022, 18:03

221130-wm9rkafc81 10

Analysis

max time kernel
157s
max time network
189s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
30/11/2022, 18:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe
Size

2.4MB
MD5

c2c5848ec8ae11e84d42521c527f75ca
SHA1

d8d98dff64297d4cf8a227a2c138efc4774942b2
SHA256

3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467
SHA512

10e3f210c2d98c090ce3a65be2ff70279c07c1bf3dcb06a48dbfaa34ab6471ed0e8f2a35fbf5bd0c9b61b1c55493c5042daa32556b4b28e22c28e8d80c5d0846
SSDEEP

49152:3rKiRwG7r2ie/XMK+kLg7SdqnCvIUdJi0l2Css5qq2nY4/gX1aNnUm5vL:3RXK+b7ScCvFPx3Kr48UmN

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
2232	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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs

pid	Process
1032	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe
1032	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe
1032	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe
1032	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe
2232	drpbx.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\AddUnpublish.docx.locked	drpbx.exe
File created	C:\Program Files\UseSend.jpg.locked	drpbx.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\ielowutil.exe	drpbx.exe
File opened for modification	C:\Program Files\MeasureInstall.html	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\FileSystemMetadata.xml	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	drpbx.exe
File created	C:\Program Files\RemoveUpdate.jpg.locked	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	drpbx.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	drpbx.exe
File created	C:\Program Files\BackupDebug.rtf.locked	drpbx.exe
File created	C:\Program Files\Microsoft Office\ThinAppXManifest.xml.locked	drpbx.exe
File created	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe.locked	drpbx.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\wmprph.exe	drpbx.exe
File created	C:\Program Files\ExportCompress.vbs.locked	drpbx.exe
File opened for modification	C:\Program Files\MoveInvoke.rm	drpbx.exe
File created	C:\Program Files\ShowRemove.exe.locked	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\AppXManifest.xml	drpbx.exe
File created	C:\Program Files\MergeResume.jpg.locked	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\wmlaunch.exe	drpbx.exe
File created	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe.locked	drpbx.exe
File created	C:\Program Files\7-Zip\7zFM.exe.locked	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\install.log	drpbx.exe
File opened for modification	C:\Program Files\ConnectMove.ppt	drpbx.exe
File opened for modification	C:\Program Files\ImportMount.rtf	drpbx.exe
File created	C:\Program Files\RevokeCheckpoint.mp4.locked	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\License.txt	drpbx.exe
File opened for modification	C:\Program Files\Internet Explorer\iediagcmd.exe	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\wmpnetwk.exe	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	drpbx.exe
File created	C:\Program Files\7-Zip\readme.txt.locked	drpbx.exe
File created	C:\Program Files\JoinSend.wmv.locked	drpbx.exe
File created	C:\Program Files\Mozilla Firefox\plugin-container.exe.locked	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\wmpconfig.exe	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	drpbx.exe
File opened for modification	C:\Program Files\Internet Explorer\iexplore.exe	drpbx.exe
File created	C:\Program Files\Microsoft Office\AppXManifest.xml.locked	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	drpbx.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\wmprph.exe	drpbx.exe
File created	C:\Program Files\7-Zip\License.txt.locked	drpbx.exe
File created	C:\Program Files\Mozilla Firefox\plugin-hang-ui.exe.locked	drpbx.exe
File opened for modification	C:\Program Files\BackupDebug.rtf	drpbx.exe
File opened for modification	C:\Program Files\CompleteUnprotect.avi	drpbx.exe
File created	C:\Program Files\7-Zip\7zG.exe.locked	drpbx.exe
File created	C:\Program Files\MeasureInstall.html.locked	drpbx.exe
File created	C:\Program Files\FindWrite.pptx.locked	drpbx.exe
File created	C:\Program Files\GetBlock.odp.locked	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.VisualElementsManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\ThinAppXManifest.xml	drpbx.exe
File created	C:\Program Files\Mozilla Firefox\default-browser-agent.exe.locked	drpbx.exe
File created	C:\Program Files\Mozilla Firefox\install.log.locked	drpbx.exe
File created	C:\Program Files\Mozilla Firefox\pingsender.exe.locked	drpbx.exe
File created	C:\Program Files\Mozilla Firefox\crashreporter.exe.locked	drpbx.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\iexplore.exe	drpbx.exe
File created	C:\Program Files\ConnectMove.ppt.locked	drpbx.exe
File created	C:\Program Files\SwitchSubmit.html.locked	drpbx.exe
File created	C:\Program Files\7-Zip\7z.exe.locked	drpbx.exe
File opened for modification	C:\Program Files\Internet Explorer\ieinstal.exe	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\wmplayer.exe	drpbx.exe
File created	C:\Program Files\ExpandSwitch.svg.locked	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 SetWindowsHookEx 2 IoCs

pid	Process
1032	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe
2232	drpbx.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 2232	1032	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe	83
PID 1032 wrote to memory of 2232	1032	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe	83
PID 1032 wrote to memory of 2232	1032	3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe	83

C:\Users\Admin\AppData\Local\Temp\3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe
"C:\Users\Admin\AppData\Local\Temp\3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
  "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Drops file in Program Files directory
  - Suspicious use of SetWindowsHookEx
  PID:2232

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
2.4MB

MD5
c2c5848ec8ae11e84d42521c527f75ca

SHA1
d8d98dff64297d4cf8a227a2c138efc4774942b2

SHA256
3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467

SHA512
10e3f210c2d98c090ce3a65be2ff70279c07c1bf3dcb06a48dbfaa34ab6471ed0e8f2a35fbf5bd0c9b61b1c55493c5042daa32556b4b28e22c28e8d80c5d0846

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

Filesize
2.4MB

MD5
c2c5848ec8ae11e84d42521c527f75ca

SHA1
d8d98dff64297d4cf8a227a2c138efc4774942b2

SHA256
3efc575b6cfd36e57a7b244a860160a35e76c0945bdad1bd79294a1816887467

SHA512
10e3f210c2d98c090ce3a65be2ff70279c07c1bf3dcb06a48dbfaa34ab6471ed0e8f2a35fbf5bd0c9b61b1c55493c5042daa32556b4b28e22c28e8d80c5d0846

Download Submit
memory/1032-135-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/1032-132-0x0000000000B20000-0x0000000000B22000-memory.dmp

Filesize
8KB

Download
memory/1032-134-0x00000000FF840000-0x00000000FFC11000-memory.dmp

Filesize
3.8MB

Download
memory/1032-133-0x0000000000B20000-0x00000000014DC000-memory.dmp

Filesize
9.7MB

Download
memory/1032-139-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/1032-140-0x0000000000B20000-0x00000000014DC000-memory.dmp

Filesize
9.7MB

Download
memory/2232-141-0x0000000000930000-0x00000000012EC000-memory.dmp

Filesize
9.7MB

Download
memory/2232-142-0x0000000000930000-0x0000000000932000-memory.dmp

Filesize
8KB

Download
memory/2232-143-0x00000000FEB10000-0x00000000FEEE1000-memory.dmp

Filesize
3.8MB

Download
memory/2232-144-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/2232-145-0x0000000000930000-0x00000000012EC000-memory.dmp

Filesize
9.7MB

Download
memory/2232-146-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download