jigsaw | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7

Analysis

max time kernel
151s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2023, 16:44

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General

Target
3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe
Size 283KB
Sample231012-t83t2aec35
SHA256 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
MD5 2773e3dc59472296cb0024ba7715a64e
SHA1 27d99fbca067f478bb91cdbcb92f13a828b00859
SHA512 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
SSDEEP 6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
MD5 SHA1 SHA512 SSDEEP

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
Renames multiple (221) 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-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation	3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe

Executes dropped EXE 1 IoCs

pid	Process
5092	drpbx.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-1-5-21-1926387074-3400613176-3566796709-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\ConfirmRestore.bmp	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Media Renderer\connectionmanager_dmr.xml	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.ZuneMusic_2019.19071.19011.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\an.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\de.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mr.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\offlineStrings.js	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ca.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\cs.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\uz.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Network Sharing\wmpnss_color48.jpg	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\CortanaCommands.xml	drpbx.exe
File opened for modification	C:\Program Files\MergeConvertTo.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\da.txt	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\ky.txt.fun	drpbx.exe
File created	C:\Program Files\Java\jdk1.8.0_66\THIRDPARTYLICENSEREADME.txt.fun	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\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__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\logo.png	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\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hy.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\id.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\hi.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__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\7-Zip\Lang\ast.txt.fun	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\et.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fr.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.NET.Native.Runtime.2.2_2.2.27328.0_x64__8wekyb3d8bbwe\logo.png	drpbx.exe
File opened for modification	C:\Program Files\ConvertFromExport.dwg	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lt.txt	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.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\fur.txt.fun	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\va.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\InvokeJoin.jpeg	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hi.txt	drpbx.exe
File opened for modification	C:\Program Files\Windows NT\TableTextService\TableTextServiceDaYi.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\eo.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\va.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Advertising.Xaml_10.1808.3.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_neutral_split.scale-100_kzf8qxf38zg5c\AppxManifest.xml	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\da.txt.fun	drpbx.exe
File created	C:\Program Files\7-Zip\Lang\zh-tw.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\Windows Media Player\Media Renderer\RenderingControl_DMP.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.VisualElementsManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\el.txt	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 2 IoCs

description	pid	Process	procid_target
PID 3752 wrote to memory of 5092	3752	3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe	83
PID 3752 wrote to memory of 5092	3752	3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe	83

C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe
"C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3752
- C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
  "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:5092

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

drpbx.exe

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

Submit Download

drpbx.exe

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

Submit Download

drpbx.exe

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

Submit Download

memory/3752-4-0x00007FFD59B20000-0x00007FFD5A4C1000-memory.dmp

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memory/3752-1-0x00007FFD59B20000-0x00007FFD5A4C1000-memory.dmp

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memory/3752-5-0x000000001C3E0000-0x000000001C8AE000-memory.dmp

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memory/3752-6-0x000000001BE20000-0x000000001BEBC000-memory.dmp

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memory/3752-7-0x00000000017A0000-0x00000000017B0000-memory.dmp

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memory/3752-3-0x00000000016B0000-0x00000000016E8000-memory.dmp

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memory/3752-2-0x00000000017A0000-0x00000000017B0000-memory.dmp

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memory/3752-0-0x00007FFD59B20000-0x00007FFD5A4C1000-memory.dmp

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memory/3752-21-0x00007FFD59B20000-0x00007FFD5A4C1000-memory.dmp

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memory/5092-22-0x00007FFD59B20000-0x00007FFD5A4C1000-memory.dmp

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memory/5092-23-0x0000000001980000-0x0000000001990000-memory.dmp

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memory/5092-24-0x00007FFD59B20000-0x00007FFD5A4C1000-memory.dmp

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memory/5092-25-0x0000000001970000-0x0000000001978000-memory.dmp

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memory/5092-26-0x00007FFD59B20000-0x00007FFD5A4C1000-memory.dmp

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memory/5092-27-0x0000000001980000-0x0000000001990000-memory.dmp

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memory/5092-28-0x00007FFD59B20000-0x00007FFD5A4C1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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