jigsaw | 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7

Analysis

max time kernel
147s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
05/07/2024, 16:47

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General

Target
3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe
Size 283KB
Sample240705-var6basaln
SHA256 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
MD5 2773e3dc59472296cb0024ba7715a64e
SHA1 27d99fbca067f478bb91cdbcb92f13a828b00859
SHA512 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
SSDEEP 6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
MD5 SHA1 SHA512 SSDEEP

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 (1462) 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
456	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-1-5-21-1672260578-815027929-964132517-1000\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 created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\S_IlluEmptyFolder_160.svg.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\Theme_Illustration_Seasons_Summer_Left_Dark.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.21012.10511.0_x64__8wekyb3d8bbwe\Assets\MissingAlbumArt.jpg	drpbx.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub_eula.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-black\Doughboy.scale-125.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_1.0.6.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\WeatherAppList.targetsize-36_altform-unplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.42251.0_x64__8wekyb3d8bbwe\Assets\FileIcons\FileLogoExtensions.targetsize-48.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingNews_1.0.6.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\NewsAppList.targetsize-36_altform-unplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.32731.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_10.2.41172.0_x64__8wekyb3d8bbwe\Assets\TipsAppList.targetsize-72_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_1.0.38.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\VoiceRecorderWideTile.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.21012.10511.0_x64__8wekyb3d8bbwe\Assets\MoviesAnywhereLogoWithTextDark.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\Xusage.txt	drpbx.exe
File opened for modification	C:\Program Files\7-Zip\Lang\de.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsTerminal_1.6.10571.0_x64__8wekyb3d8bbwe\Images\Square44x44Logo.targetsize-256.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1909.12456.0_x64__8wekyb3d8bbwe\Assets\contrast-black\PeopleAppList.targetsize-72.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-black\GenericMailWideTile.scale-400.png	drpbx.exe
File created	C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_11.2104.2.0_x64__8wekyb3d8bbwe\Assets\Timer10Sec.targetsize-20.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_1.0.36.0_x64__8wekyb3d8bbwe\Assets\AlarmsWideTile.scale-200_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\PreviewCalendar.png	drpbx.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\spectrum_spinner.svg.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsNotepad_10.2102.13.0_x64__8wekyb3d8bbwe\Assets\NotepadAppList.targetsize-96_altform-lightunplated.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.PowerAutomateDesktop_1.0.65.0_neutral_split.scale-100_8wekyb3d8bbwe\Images\contrast-black\PowerAutomateSplashScreen.scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\BuildInfo.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-white\GenericMailBadge.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad\osknumpadbase.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.2012.21.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\CalculatorStoreLogo.scale-100_contrast-white.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.ZuneVideo_10.21012.10511.0_x64__8wekyb3d8bbwe\Assets\FileExtension.targetsize-63.png	drpbx.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-100.png.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_2021.2012.10.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml	drpbx.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\c2rpridslicensefiles_auto.xml.fun	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_10.2.41172.0_x64__8wekyb3d8bbwe\Assets\TipsAppList.targetsize-40_altform-unplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.PowerAutomateDesktop_1.0.65.0_x64__8wekyb3d8bbwe\Images\PowerAutomateSquare70x70Logo.scale-180.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_21.21030.25003.0_x64__8wekyb3d8bbwe\Assets\PhotosStoreLogo.scale-200.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-20_altform-lightunplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.40831.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-40_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.21012.10511.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\contrast-white\Logo.scale-100_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Paint_10.2104.17.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\PaintLargeTile.scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\Dismiss.scale-80.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\EmptyShare.scale-125.png	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue Green.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.Getstarted_10.2.41172.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\TipsMedTile.scale-200.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.21012.10511.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-96_altform-lightunplated_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_1.0.6.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-white\WeatherAppList.targetsize-60_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\WeatherSplashScreen.scale-125_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.40978.0_x64__8wekyb3d8bbwe\AppxManifest.xml	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.42251.0_x64__8wekyb3d8bbwe\Assets\AppPackageAppList.targetsize-80_altform-unplated.png	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\LyncVDI_Eula.txt	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.40978.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-40_altform-unplated_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-black\Dismiss.scale-80.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_4.0.2.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\Icons\StickyNotesMedTile.scale-100_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1909.12456.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\contrast-black\PeopleAppList.scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\images\contrast-white\OutlookMailSmallTile.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-80_altform-lightunplated_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-GoogleCloudCacheMini.scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\StoreLogo.scale-100.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_10.2.41172.0_x64__8wekyb3d8bbwe\Assets\TipsAppList.targetsize-36_altform-lightunplated_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.2103.1172.0_x64__8wekyb3d8bbwe\Assets\FeedbackHubAppList.targetsize-40.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsTerminal_1.6.10571.0_x64__8wekyb3d8bbwe\Images\Square150x150Logo.scale-200_contrast-black.png	drpbx.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Templates\1033\ChronologicalLetter.dotx	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.41182.0_x64__8wekyb3d8bbwe\Assets\contrast-white\MedTile.scale-400_contrast-white.png	drpbx.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1909.12456.0_x64__8wekyb3d8bbwe\Assets\PeopleAppList.targetsize-36.png	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 4720 wrote to memory of 456	4720	3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe	77
PID 4720 wrote to memory of 456	4720	3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe	77

C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe
"C:\Users\Admin\AppData\Local\Temp\3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4720
- 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:456

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

DisplayLanguageNames.en_US_POSIX.txt.fun

Path C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\LanguageNames2\DisplayLanguageNames.en_US_POSIX.txt.fun
Size 32KB
SHA256 a193ee2673e0ba5ebc5ea6e65665b8a28bd7611f06d2b0174ec2076e22d94356
MD5 829165ca0fd145de3c2c8051b321734f
SHA1 f5cc3af85ab27c3ea2c2f7cbb8295b28a76a459e
SHA512 7d380cda12b342a770def9d4e9c078c97874f3a30cd9f531355e3744a8fef2308f79878ffeb12ce26953325cb6a17bc7e54237dfdc2ee72b140ec295676adbcb
SSDEEP 768:G0/UcQ5N99TO/VAWPngk6pGemIpytzO2VnXoE6Yiif2U8tzVdiSl:cjTONA4ngknHUUyQXoE5N2U8t5v
MD5 SHA1 SHA512 SSDEEP

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invalid32x32.gif.fun

Path C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\invalid32x32.gif.fun
Size 160B
SHA256 98b6c2ddfefc628d03ceaef9d69688674a6bc32eb707f9ed86bc8c75675c4513
MD5 580ee0344b7da2786da6a433a1e84893
SHA1 60f8c4dd5457e9834f5402cb326b1a2d3ca0ba7e
SHA512 356d2cdea3321e894b5b46ad1ea24c0e3c8be8e3c454b5bd300b7340cbb454e71fc89ca09ea0785b373b483e67c2f6f6bb408e489b0de4ff82d5ed69a75613ba
MD5 SHA1 SHA512

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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

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settings.dat.fun

Path C:\Users\Admin\AppData\Local\Packages\Microsoft.AccountsControl_cw5n1h2txyewy\Settings\settings.dat.fun
Size 8KB
SHA256 36537e56d60910ab6aa548e64ca4adafdcabde9d60739013993e12ba061dfd65
MD5 f22599af9343cac74a6c5412104d748c
SHA1 e2ac4c57fa38f9d99f3d38c2f6582b4334331df5
SHA512 5c8afc025e1d8342d93b7842dc7ef22eca61085857a80a08ba9b3f156ee3b814606bb32bc244bd525a7913e7915bdf3a86771d39577f4a1176ade04dc381c6d4
SSDEEP 192:FSgNbwp27vLa0nMdhWNBPh0X4f4ht6VfJHYwiP8bIpu6Ev0KrDj:FnNbwp2/HnMdhWN1h0XG4hix4wmFpu6g
MD5 SHA1 SHA512 SSDEEP

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BroadcastMsg_1715180895.txt.fun

Path C:\Users\Admin\AppData\Local\Temp\BroadcastMsg_1715180895.txt.fun
Size 16B
SHA256 619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880
MD5 8ebcc5ca5ac09a09376801ecdd6f3792
SHA1 81187142b138e0245d5d0bc511f7c46c30df3e14
SHA512 cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650
MD5 SHA1 SHA512

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memory/456-22-0x00000000010F0000-0x00000000010F8000-memory.dmp

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memory/456-441-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/456-20-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/456-1490-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/456-21-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/456-1489-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/456-440-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/456-1488-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/456-442-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/4720-4-0x000000001BBD0000-0x000000001C09E000-memory.dmp

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memory/4720-3-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/4720-2-0x000000001B560000-0x000000001B598000-memory.dmp

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memory/4720-1-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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memory/4720-5-0x000000001B650000-0x000000001B6EC000-memory.dmp

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memory/4720-0-0x00007FF991EB5000-0x00007FF991EB6000-memory.dmp

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memory/4720-19-0x00007FF991C00000-0x00007FF9925A1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads