jigsaw | 92880fa12ebc08efe411f63e623fe80225b771f493e80d4cc159f100229c5a5d

Analysis

max time kernel
30s
max time network
20s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
20/03/2025, 23:01

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General

Target

cats.exe
Size

126KB
MD5

e0d108435c58dc9403588e4dcab68275
SHA1

7a7331423938020550ff3decd2e8b50b3ee5c87a
SHA256

61cd0131cb4bf090c5ee7761566f6f7a778e78b37d220f0506f98632a2663ee8
SHA512

2a5648ced91b75d928b4d71a8580c5bee75a5f27623f8c5071cd23b8cd85eaa8129ddb0aaf0a1fcca05fb1b7868a0fcd9306e9ddf2d3eaaf605c41cc7fde4a9e
SSDEEP

3072:7+gYdgLNp0jPilel4+800N1lknzRxqmhda40U6hrnzRxqmhda40U6hK:6gvunnhdaLlrnnhdaLl

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
Jigsaw family
jigsaw
Renames multiple (232) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	cats.exe

Executes dropped EXE 1 IoCs

pid	Process
2280	Chrome32.exe

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-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	cats.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\Lang\bn.txt	Chrome32.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0409-1000-0000000FF1CE.xml	Chrome32.exe
File opened for modification	C:\Program Files\Windows Media Player\Media Renderer\RenderingControl_DMP.xml	Chrome32.exe
File created	C:\Program Files\Microsoft Office\ThinAppXManifest.xml.cat	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ca.txt	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hy.txt	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\sa.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\AppxManifest.xml	Chrome32.exe
File opened for modification	C:\Program Files (x86)\Microsoft.NET\RedistList\AssemblyList_4_extended.xml	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\ja.txt.cat	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\lv.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00A1-0409-1000-0000000FF1CE.xml	Chrome32.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\Media Renderer\RenderingControl.xml	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fr.txt	Chrome32.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0409-1000-0000000FF1CE.xml.cat	Chrome32.exe
File created	C:\Program Files\VideoLAN\VLC\NEWS.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\webviewBoot.min.js	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kk.txt	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\AppxManifest.xml	Chrome32.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\Media Renderer\DMR_120.png	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\he.txt	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\th.txt.cat	Chrome32.exe
File created	C:\Program Files\Java\jre-1.8\README.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Win32Bridge.Protocol.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\AppxManifest.xml	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lv.txt	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_2019.729.2301.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File opened for modification	C:\Program Files\Windows Media Player\Media Renderer\DMR_120.png	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\uk.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\AppxManifest.xml	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ga.txt	Chrome32.exe
File created	C:\Program Files\Java\jdk-1.8\jvisualvm.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_2020.1906.55.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fur.txt	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\mk.txt.cat	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\nb.txt.cat	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\pt-br.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00C1-0409-1000-0000000FF1CE.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\AppxManifest.xml	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\fy.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0000-1000-0000000FF1CE.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File opened for modification	C:\Program Files\ClearRestart.png	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ka.txt	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mng.txt	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sv.txt	Chrome32.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.common.16.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fi.txt	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\io.txt.cat	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\lt.txt.cat	Chrome32.exe
File created	C:\Program Files\7-Zip\Lang\ro.txt.cat	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Advertising.Xaml_10.1808.3.0_x64__8wekyb3d8bbwe\AppxManifest.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\BuildInfo.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_2019.430.2026.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_2019.19071.19011.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.common.16.xml.cat	Chrome32.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\ContentDirectory.xml	Chrome32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	Chrome32.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5824 wrote to memory of 2280	5824	cats.exe	85
PID 5824 wrote to memory of 2280	5824	cats.exe	85

C:\Users\Admin\AppData\Local\Temp\cats.exe
"C:\Users\Admin\AppData\Local\Temp\cats.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5824
- C:\Users\Admin\AppData\Local\Google (x86)\Chrome32.exe
  "C:\Users\Admin\AppData\Local\Google (x86)\Chrome32.exe" C:\Users\Admin\AppData\Local\Temp\cats.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:2280

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

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\Google (x86)\Chrome32.exe

Filesize
126KB

MD5
e0d108435c58dc9403588e4dcab68275

SHA1
7a7331423938020550ff3decd2e8b50b3ee5c87a

SHA256
61cd0131cb4bf090c5ee7761566f6f7a778e78b37d220f0506f98632a2663ee8

SHA512
2a5648ced91b75d928b4d71a8580c5bee75a5f27623f8c5071cd23b8cd85eaa8129ddb0aaf0a1fcca05fb1b7868a0fcd9306e9ddf2d3eaaf605c41cc7fde4a9e

Download Submit
memory/2280-19-0x00007FF89BA10000-0x00007FF89C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/2280-20-0x00007FF89BA10000-0x00007FF89C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/2280-21-0x00007FF89BA10000-0x00007FF89C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/2280-22-0x0000000001630000-0x0000000001638000-memory.dmp

Filesize
32KB

Download
memory/2280-23-0x00007FF89BA10000-0x00007FF89C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/5824-0-0x00007FF89BCC5000-0x00007FF89BCC6000-memory.dmp

Filesize
4KB

Download
memory/5824-1-0x000000001BB60000-0x000000001C02E000-memory.dmp

Filesize
4.8MB

Download
memory/5824-2-0x00007FF89BA10000-0x00007FF89C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/5824-3-0x000000001B5E0000-0x000000001B67C000-memory.dmp

Filesize
624KB

Download
memory/5824-6-0x00007FF89BA10000-0x00007FF89C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/5824-18-0x00007FF89BA10000-0x00007FF89C3B1000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads