jigsaw | ea864341641de1637aae67886b4803cb1311a76bc661b12048b9dcb099cb0171

Resubmissions

26-03-2024 00:35

240326-axjggadh31 10

26-03-2024 00:31

240326-at25eadh3s 10

Analysis

max time kernel
90s
max time network
93s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
26-03-2024 00:31

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General

Target

JigsawRansomware.exe
Size

1.5MB
MD5

a19bccc7accdbc624e21773e29915021
SHA1

d5ffa92286ab0dfd5d750948880225f11dc0eba3
SHA256

ea864341641de1637aae67886b4803cb1311a76bc661b12048b9dcb099cb0171
SHA512

d85af739631d4dd960c1bf7bc045f53ad3e31a10d4a41facb8664a89b65c9182ac7205ea9466815099d7dc8cedf372496d050c66f15fc3cc92fbc2803efc6db7
SSDEEP

49152:z70nS4pfVkqgy6r3a+kqXfd+/9A9TVanieKd:z7K5JEyUa+kqXf0FoVW

Score

10^/10

jigsaw persistence ransomware spyware stealer

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 (1487) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Executes dropped EXE 1 IoCs

pid	Process
5024	drpbx.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe"	JigsawRansomware.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.32731.0_x64__8wekyb3d8bbwe\Assets\AppList.targetsize-48_altform-unplated.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\LinkedInboxMediumTile.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\OutlookMailBadge.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.2008.32311.0_x64__8wekyb3d8bbwe\Assets\contrast-white\GetHelpAppList.targetsize-96_altform-lightunplated_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.32731.0_x64__8wekyb3d8bbwe\Assets\contrast-white\LargeTile.scale-100_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_1.0.6.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\AppTiles\contrast-black\WeatherWideTile.scale-125_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_12104.1001.1.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-white\StoreBadgeLogo.scale-200.png	drpbx.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.VisualElementsManifest.xml.kys	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.40978.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-24_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_10.2.41172.0_x64__8wekyb3d8bbwe\Assets\TipsAppList.targetsize-256_altform-lightunplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_21.21030.25003.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-256_altform-unplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppUpdate.svg	drpbx.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-100.png.kys	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_11.2104.2.0_x64__8wekyb3d8bbwe\Assets\contrast-black\SnipSketchAppList.targetsize-36_altform-unplated.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.32731.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-30_altform-unplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-white\HxA-Yahoo-Dark.scale-300.png	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	drpbx.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\ccloud_retina.png.kys	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Orange.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.Getstarted_10.2.41172.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\TipsBadgeLogo.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.Getstarted_10.2.41172.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\TipsSplashScreen.scale-200_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-black\HxMailAppList.targetsize-64.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.2012.21.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\CalculatorLargeTile.scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsTerminal_1.6.10571.0_x64__8wekyb3d8bbwe\Images\LargeTile.scale-125_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Grayscale.xml	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\et.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.42251.0_x64__8wekyb3d8bbwe\Assets\AppPackageSmallTile.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Todos_0.33.33351.0_x64__8wekyb3d8bbwe\Assets\Square44x44Logo.targetsize-48_altform-lightunplated.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.21012.10511.0_x64__8wekyb3d8bbwe\Assets\iheart-radio.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.40978.0_x64__8wekyb3d8bbwe\Assets\contrast-black\SmallTile.scale-100_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.2103.1172.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\contrast-black\FeedbackHubSplashScreen.scale-100_altform-colorful.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\AppIcon.targetsize-24.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\AppIcon.targetsize-30_altform-unplated.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_1.0.38.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\VoiceRecorderMedTile.scale-125.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_1.0.22.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\MapsAppList.targetsize-40_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_listview_selected.svg	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_10.2.41172.0_x64__8wekyb3d8bbwe\Assets\TipsAppList.targetsize-16.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_1.0.36.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.targetsize-60_altform-unplated_contrast-white.png	drpbx.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jvm.hprof.txt.kys	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.40978.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-48_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1909.12456.0_x64__8wekyb3d8bbwe\Assets\contrast-white\PeopleAppList.targetsize-36.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.21012.10511.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-36_altform-lightunplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_1.0.22.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\MapsAppList.scale-200_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_12104.1001.1.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-white\StoreStoreLogo.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_10.2.41172.0_x64__8wekyb3d8bbwe\Assets\TipsAppList.targetsize-60_altform-unplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_21.21030.25003.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.contrast-black_targetsize-80.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_1.0.36.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.targetsize-16.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.21012.10511.0_x64__8wekyb3d8bbwe\Assets\BlurredGradientBackground.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.2012.21.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.targetsize-24_altform-lightunplated_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_4.0.2.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\Icons\StickyNotesMedTile.scale-125.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-white\HxMailSplashLogo.scale-125.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Paint_10.2104.17.0_x64__8wekyb3d8bbwe\Assets\PaintAppList.targetsize-32_altform-unplated.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.2012.21.0_x64__8wekyb3d8bbwe\Assets\Programmer.targetsize-32_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\1949_20x20x32.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingNews_1.0.6.0_x64__8wekyb3d8bbwe\Assets\AppTiles\NewsAppList.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2020.503.58.0_x64__8wekyb3d8bbwe\Assets\contrast-black\CameraAppList.targetsize-80_altform-unplated.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-white\GenericMailWideTile.scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\CardUIBkg.scale-125.png	drpbx.exe
File created	C:\Program Files\ExpandClear.sql.kys	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\bg1a.jpg	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_4.0.2.0_x64__8wekyb3d8bbwe\Assets\Icons\StickyNotesSmallTile.scale-200.png	drpbx.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	drpbx.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\hwrcommonlm.dat	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 4832 wrote to memory of 5024	4832	JigsawRansomware.exe	76
PID 4832 wrote to memory of 5024	4832	JigsawRansomware.exe	76

C:\Users\Admin\AppData\Local\Temp\JigsawRansomware.exe
"C:\Users\Admin\AppData\Local\Temp\JigsawRansomware.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
  "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\JigsawRansomware.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:5024

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\LanguageNames2\DisplayLanguageNames.en_US_POSIX.txt.kys

Filesize
32KB

MD5
aec7bd7c96948d97d13c7df53988e89c

SHA1
7b906b88009e7509324ae92dc8a32ae4fb38626c

SHA256
15fcb7c77cf60f287e9c81ec8053a9cdd1aa8bc0413734e8a1499a9de635c6d0

SHA512
27d12f825c16d1d5349f53a23d57f71eb8d4534a1ae4af2c4eead9cda09a4440dadc518a8887a3ea818494cb6319fc82ab8147cdb85958e9b344400b7d6b2803

Download Submit
C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\invalid32x32.gif.kys

Filesize
160B

MD5
000e8c41d4a15fb34d0be0dbb56e3778

SHA1
00c4eae64ee6239d7c65d819c6ce1ac329224f8c

SHA256
8bdfa6a5b7de345cf0d4fe0e9c17d8b0e9db26d58b05b1b2ebbb3a05a068ff28

SHA512
775d832eb8ab73e4a93789917dca69edb6c91fbb426e02acf7c6e213ffb4575776187209d1c471fbf57c4621ea3c23d9850f6dfc2770d62c17de9d66710800af

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

Filesize
1.5MB

MD5
a19bccc7accdbc624e21773e29915021

SHA1
d5ffa92286ab0dfd5d750948880225f11dc0eba3

SHA256
ea864341641de1637aae67886b4803cb1311a76bc661b12048b9dcb099cb0171

SHA512
d85af739631d4dd960c1bf7bc045f53ad3e31a10d4a41facb8664a89b65c9182ac7205ea9466815099d7dc8cedf372496d050c66f15fc3cc92fbc2803efc6db7

Download Submit
C:\Users\Admin\AppData\Local\Packages\Microsoft.AccountsControl_cw5n1h2txyewy\Settings\settings.dat.kys

Filesize
8KB

MD5
420960c4b17842a24bbf117222c60e47

SHA1
4e2f5bc3a3fe7da4ea60dfaae851b1b88e48751d

SHA256
e94c37d7dc8dd954bfee8e340abc882bc361baf0d3771ed442ed625a3bcb0174

SHA512
b42f16f6fca9b66d49a2ad7c80e56c51e04d023a4ae50e984dbd267e204682ecbb929fefb5c7ee67775597773b08b6bd39416f13b87f1782cf8c5d553ecd7ce5

Download Submit
C:\Users\Admin\AppData\Local\Temp\BroadcastMsg_1708528375.txt.kys

Filesize
16B

MD5
cfdae8214d34112dbee6587664059558

SHA1
f649f45d08c46572a9a50476478ddaef7e964353

SHA256
33088cb514406f31e3d96a92c03294121ee9f24e176f7062625c2b36bee7a325

SHA512
c260f2c223ecbf233051ac1d6a1548ad188a2777085e9d43b02da41b291ff258e4c506f99636150847aa24918c7bbb703652fef2fe55b3f50f85b5bd8dd5f6e3

Download Submit
memory/4832-0-0x00000242D3070000-0x00000242D3202000-memory.dmp

Filesize
1.6MB

Download
memory/4832-1-0x00007FFEA6C80000-0x00007FFEA7742000-memory.dmp

Filesize
10.8MB

Download
memory/4832-15-0x00007FFEA6C80000-0x00007FFEA7742000-memory.dmp

Filesize
10.8MB

Download
memory/5024-16-0x00007FFEA6C80000-0x00007FFEA7742000-memory.dmp

Filesize
10.8MB

Download
memory/5024-17-0x000001BC22FD0000-0x000001BC22FE0000-memory.dmp

Filesize
64KB

Download
memory/5024-463-0x00007FFEA6C80000-0x00007FFEA7742000-memory.dmp

Filesize
10.8MB

Download
memory/5024-826-0x000001BC22FD0000-0x000001BC22FE0000-memory.dmp

Filesize
64KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads