Analysis
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max time kernel
151s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
09-06-2023 06:50
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
02689399.exe
Resource
win7-20230220-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
02689399.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
02689399.exe
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Size
283KB
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MD5
2773e3dc59472296cb0024ba7715a64e
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SHA1
27d99fbca067f478bb91cdbcb92f13a828b00859
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SHA256
3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
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SHA512
6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
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SSDEEP
6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
Score
10/10
Malware Config
Signatures
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Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
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Modifies extensions of user files 4 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File created C:\Users\Admin\Pictures\ImportRestore.tif.fun drpbx.exe File created C:\Users\Admin\Pictures\ReadComplete.raw.fun drpbx.exe File created C:\Users\Admin\Pictures\RequestConvertTo.raw.fun drpbx.exe File created C:\Users\Admin\Pictures\CopyUnblock.raw.fun drpbx.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation 02689399.exe -
Executes dropped EXE 1 IoCs
pid Process 4664 drpbx.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Frfx\\firefox.exe" 02689399.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\7-Zip\Lang\vi.txt.fun drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0409-1000-0000000FF1CE.xml drpbx.exe File opened for modification C:\Program Files\VideoLAN\VLC\COPYING.txt drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Advertising.Xaml_10.1808.3.0_x64__8wekyb3d8bbwe\logo.png drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\el.txt drpbx.exe File created C:\Program Files\7-Zip\Lang\fr.txt.fun drpbx.exe File created C:\Program Files\7-Zip\Lang\sv.txt.fun drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Services.Store.Engagement_10.0.18101.0_x86__8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File created C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0409-1000-0000000FF1CE.xml.fun drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0409-1000-0000000FF1CE.xml drpbx.exe File created C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0409-1000-0000000FF1CE.xml.fun drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.NET.Native.Framework.1.7_1.7.25531.0_x64__8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\eu.txt drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\fur.txt drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\ko.txt drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\BuildInfo.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Services.Store.Engagement_10.0.18101.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\Microsoft Office\FileSystemMetadata.xml drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\fa.txt 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.ZuneVideo_10.19071.19011.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File created C:\Program Files\7-Zip\Lang\is.txt.fun drpbx.exe File created C:\Program Files\7-Zip\Lang\ky.txt.fun 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 (x86)\Windows NT\TableTextService\TableTextServiceYi.txt drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-040C-1000-0000000FF1CE.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File created C:\Program Files\RestartInstall.docm.fun drpbx.exe File created C:\Program Files\7-Zip\History.txt.fun drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\ext.txt drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-0C0A-1000-0000000FF1CE.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_neutral_split.scale-200_8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Services.Store.Engagement_10.0.18101.0_x64__8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\br.txt drpbx.exe File created C:\Program Files\7-Zip\Lang\cy.txt.fun drpbx.exe File created C:\Program Files\7-Zip\Lang\pl.txt.fun drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\AppxManifest.xml drpbx.exe File created C:\Program Files\7-Zip\Lang\id.txt.fun drpbx.exe File created C:\Program Files\7-Zip\Lang\nb.txt.fun drpbx.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\THIRDPARTYLICENSEREADME-JAVAFX.txt drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.NET.Native.Runtime.1.7_1.7.25531.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\NoiseAsset_256x256_PNG.png drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\sk.txt drpbx.exe File created C:\Program Files\7-Zip\Lang\tr.txt.fun drpbx.exe File created C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00A1-0000-1000-0000000FF1CE.xml.fun drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\networkmanifest.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml drpbx.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Edge.dat drpbx.exe File created C:\Program Files\RedoMeasure.avi.fun drpbx.exe File opened for modification C:\Program Files\7-Zip\Lang\sq.txt drpbx.exe File created C:\Program Files\7-Zip\Lang\uk.txt.fun drpbx.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0000-1000-0000000FF1CE.xml drpbx.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\AppxManifest.xml drpbx.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2680 wrote to memory of 4664 2680 02689399.exe 83 PID 2680 wrote to memory of 4664 2680 02689399.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\02689399.exe"C:\Users\Admin\AppData\Local\Temp\02689399.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2680 -
C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\02689399.exe2⤵
- Modifies extensions of user files
- Executes dropped EXE
- Drops file in Program Files directory
PID:4664
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
283KB
MD52773e3dc59472296cb0024ba7715a64e
SHA127d99fbca067f478bb91cdbcb92f13a828b00859
SHA2563ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
SHA5126ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
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Filesize
283KB
MD52773e3dc59472296cb0024ba7715a64e
SHA127d99fbca067f478bb91cdbcb92f13a828b00859
SHA2563ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
SHA5126ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
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Filesize
283KB
MD52773e3dc59472296cb0024ba7715a64e
SHA127d99fbca067f478bb91cdbcb92f13a828b00859
SHA2563ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
SHA5126ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262