11c4c9a0386be71dfe68af6b96ae2d17e89036ef5b62672c84087c3f80706c93

General

Target

sample.exe
Size

179KB
MD5

61fccc142e2bbf498885bb6e42bae62c
SHA1

7f15507c7798d8b99696c19929c86c6c629eb2f5
SHA256

ae91da58a702252cc0dabcf19fa65e9655c7b7143e71e048aad1ebe59a31aabf
SHA512

a3cc95a442581d02c97d4fe48494b157f37e5dff4ddf175723a2c99e442492370ad65f9f22da29ffd020754445193215b7dadc3515ab8cee91b6dd3b1f1202b1

Score

8^/10

ransomware spyware stealer

Malware Config

Signatures

Modifies extensions of user files 7 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

sample.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\ProtectMove.tiff	sample.exe
File renamed	C:\Users\Admin\Pictures\ProtectMove.tiff => C:\Users\Admin\Pictures\ProtectMove.tiff.matryoshka	sample.exe
File opened for modification	C:\Users\Admin\Pictures\SaveHide.tiff	sample.exe
File renamed	C:\Users\Admin\Pictures\SaveHide.tiff => C:\Users\Admin\Pictures\SaveHide.tiff.matryoshka	sample.exe
File renamed	C:\Users\Admin\Pictures\SplitSave.png => C:\Users\Admin\Pictures\SplitSave.png.matryoshka	sample.exe
File renamed	C:\Users\Admin\Pictures\UpdateJoin.tif => C:\Users\Admin\Pictures\UpdateJoin.tif.matryoshka	sample.exe
File renamed	C:\Users\Admin\Pictures\BlockSwitch.tif => C:\Users\Admin\Pictures\BlockSwitch.tif.matryoshka	sample.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
T1081

Drops file in Program Files directory 64 IoCs

Processes:

sample.exe

description	ioc	process
File created	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.18.56.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherIcons\30x30\167.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\OneNoteNotebookMedTile.scale-100.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\large\pl_60x42.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-black\HxCalendarLargeTile.scale-400.png	sample.exe
File created	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Car\LTR\contrast-white\SmallTile.scale-125.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\Assets\Logos\Square150x150\PaintMedTile.scale-125.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxA-Generic-Dark.scale-400.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-96_altform-unplated_contrast-white.png	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\it-it\ui-strings.js	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\plugins\tracked-send\js\nls\de-de\ui-strings.js	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Messaging_3.26.24002.0_x64__8wekyb3d8bbwe\Assets\BadgeLogo2.targetsize-16.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Classic\classic_13d.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\11891_48x48x32.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1702.312.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.contrast-white_targetsize-256.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-72_altform-unplated.png	sample.exe
File created	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.Windows.Photos_16.511.8780.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNoteNotebookLargeTile.scale-200.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_16.511.8780.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-256_altform-unplated.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1702.312.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.targetsize-20_altform-fullcolor.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxA-Exchange.scale-200.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-black\OutlookMailBadge.scale-150.png	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\acrobat_parcel_generic_32.svg	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\app-center\js\nls\hu-hu\ui-strings.js	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxA-GoogleCloudCache-Light.scale-180.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-white\ExchangeLargeTile.scale-100.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Arkadium.Win10.DailyChallenges\Assets\PrizeHistory\badges_silver.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Buttons\Deal\Deal.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Emoticons\large\heart.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.contrast-black_targetsize-256.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\2875_20x20x32.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Place\LTR\contrast-black\LargeTile.scale-100.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1702.301.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderAppList.targetsize-80_altform-unplated.png	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\images\share_icons.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\small\gr_16x11.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxA-GoogleCloudCache-Dark.scale-240.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\contrast-white\MapsStoreLogo.scale-100.png	sample.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\NewComment@2x.png	sample.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\Send2.16.White.png	sample.exe
File created	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Work\RTL\contrast-white\SmallTile.scale-125.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.10252.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppPackageAppList.targetsize-48_altform-unplated_contrast-black.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\OneNoteSmallTile.scale-125.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\small\sj_16x11.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_x64__8wekyb3d8bbwe\Assets\TimerSmallTile.contrast-black_scale-200.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxA-Advanced-Dark.scale-125.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxMailSplashLogo.scale-250.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-white\HxA-Generic-Dark.scale-250.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\Images\PrintAndShare\Glyph_0xe7dc.png	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_filterselected-dark-down_32.svg	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\images\themes\dark\s_radio_selected_18.svg	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\inline-error-2x.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\osf\agavedefaulticon96x96.png	sample.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-black\HxA-Advanced-Light.scale-250.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\MapsSplashScreen.scale-100.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\Images\LayersControl\Aerial.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11701.1001.87.0_x64__8wekyb3d8bbwe\WinStore\Resources\Assets\RT_Icons_Spilt_16.png	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\js\nls\zh-tw\ui-strings.js	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_17.8010.5926.0_x64__8wekyb3d8bbwe\XMLOffKeys\Keys_OffVerOOBE.xml	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\5601_32x32x32.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNotePageMedTile.scale-100.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\large\br_60x42.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Work\RTL\SmallTile.scale-100.png	sample.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\js\nls\ca-es\ui-strings.js	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_neutral_split.scale-180_8wekyb3d8bbwe\Assets\Office\ProjectionSpheric.scale-180.png	sample.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\ThemeCreation\Save.png	sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 644 vssvc.exe
Token: SeRestorePrivilege 644 vssvc.exe
Token: SeAuditPrivilege 644 vssvc.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

sample.exe

pid process

708 sample.exe
708 sample.exe
708 sample.exe
708 sample.exe

description	pid	process
Token: SeBackupPrivilege	644	vssvc.exe
Token: SeRestorePrivilege	644	vssvc.exe
Token: SeAuditPrivilege	644	vssvc.exe

pid	process
708	sample.exe
708	sample.exe
708	sample.exe
708	sample.exe

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Modifies extensions of user files
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
PID:708

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:644

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/708-114-0x00000000009A0000-0x00000000009A1000-memory.dmp

Filesize
4KB

Download
memory/708-116-0x000000001B590000-0x000000001B592000-memory.dmp

Filesize
8KB

Download
memory/708-117-0x000000001B592000-0x000000001B594000-memory.dmp

Filesize
8KB

Download
memory/708-118-0x000000001B594000-0x000000001B595000-memory.dmp

Filesize
4KB

Download
memory/708-119-0x000000001B595000-0x000000001B596000-memory.dmp

Filesize
4KB

Download
memory/708-120-0x0000000023520000-0x0000000023521000-memory.dmp

Filesize
4KB

Download
memory/708-121-0x000000001B597000-0x000000001B598000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing