4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99

General
Target

4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe

Filesize

504KB

Completed

08-04-2021 04:28

Score
10 /10
MD5

e3da64fd9a0a585ebe00ac7f235104d6

SHA1

52b2fc13ec0dbf8a0250c066cd3486b635a27827

SHA256

4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99

Malware Config
Signatures 9

Filter: none

Collection
Credential Access
Defense Evasion
Discovery
Impact
  • Mespinoza Ransomware

    Description

    Also known as Pysa. Ransomware-as-a-servoce which first appeared in 2020.

    TTPs

    Query RegistryData Encrypted for Impact
  • Modifies extensions of user files
    4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe

    Description

    Ransomware generally changes the extension on encrypted files.

    Tags

    Reported IOCs

    descriptioniocprocess
    File opened for modificationC:\Users\Admin\Pictures\PublishRemove.crw.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\SkipMount.png => C:\Users\Admin\Pictures\SkipMount.png.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Users\Admin\Pictures\SyncDebug.tif.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Users\Admin\Pictures\DebugCompare.tif.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\DismountReset.tif => C:\Users\Admin\Pictures\DismountReset.tif.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Users\Admin\Pictures\SkipMount.png.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\SuspendUnlock.tif => C:\Users\Admin\Pictures\SuspendUnlock.tif.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\PublishRemove.crw => C:\Users\Admin\Pictures\PublishRemove.crw.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\ResizeAdd.tiff => C:\Users\Admin\Pictures\ResizeAdd.tiff.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Users\Admin\Pictures\ResolveGroup.tiff.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Users\Admin\Pictures\SuspendUnlock.tif.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\DebugCompare.tif => C:\Users\Admin\Pictures\DebugCompare.tif.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Users\Admin\Pictures\DismountReset.tif.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Users\Admin\Pictures\ResizeAdd.tiff.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\ResolveGroup.tiff => C:\Users\Admin\Pictures\ResolveGroup.tiff.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\SyncDebug.tif => C:\Users\Admin\Pictures\SyncDebug.tif.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File renamedC:\Users\Admin\Pictures\HidePing.crw => C:\Users\Admin\Pictures\HidePing.crw.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Users\Admin\Pictures\HidePing.crw.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
  • Deletes itself
    cmd.exe

    Reported IOCs

    pidprocess
    1332cmd.exe
  • Reads user/profile data of web browsers

    Description

    Infostealers often target stored browser data, which can include saved credentials etc.

    TTPs

    Data from Local SystemCredentials in Files
  • Drops file in Program Files directory
    4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe

    Reported IOCs

    descriptioniocprocess
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-modules-appui.xml.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-sampler.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jre7\lib\zi\Australia\Lord_Howe.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\VideoLAN\VLC\lua\http\requests\status.json.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files\Common Files\System\ado\en-US\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Barbados.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jre7\lib\zi\Australia\Eucla.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files\VideoLAN\VLC\locale\km\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\7-Zip\Lang\ba.txt.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\.settings\org.eclipse.equinox.p2.metadata.repository.prefs.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.directorywatcher.nl_ja_4.4.0.v20140623020002.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-javahelp.xml.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-attach_zh_CN.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\ReadOutLoud.api.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\OFFREL.DLL.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\7-Zip\7z.sfx.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\db\bin\ij.bat.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-core-kit.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\7-Zip\Lang\it.txt.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-openide-execution.xml.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\jre\lib\classlist.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Yakutat.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-openide-awt.xml.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Pago_Pago.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.help_2.0.102.v20141007-2301\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\css\blafdoc.css.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.frameworkadmin.equinox.nl_ja_4.4.0.v20140623020002.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\db\bin\derby_common.bat.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\.eclipseproduct.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\update_tracking\org-netbeans-lib-profiler-charts.xml.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files (x86)\Common Files\Adobe\Help\en_US\Adobe Reader\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Google\Chrome\Application\86.0.4240.111\Locales\ml.pak.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-heapwalker_zh_CN.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jre7\lib\zi\America\Inuvik.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files (x86)\Common Files\microsoft shared\THEMES14\CASCADE\CASCADE.ELM.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\7-Zip\Lang\ro.txt.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\plugin.properties.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Australia\Darwin.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\SystemV\MST7MDT.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-core-io-ui.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jre7\lib\zi\Asia\Hong_Kong.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files\VideoLAN\VLC\locale\pl\LC_MESSAGES\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACEXBE.DLL.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files\DVD Maker\Shared\DvdStyles\Travel\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\1033\ACEINTL.DLL.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files (x86)\Windows Media Player\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files\Java\jdk1.7.0_80\jre\bin\dtplugin\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jre7\lib\zi\Europe\Warsaw.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-applemenu.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-selector-ui_zh_CN.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.preferences_3.5.200.v20140224-1527.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-core-ui_ja.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-openide-text.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jre7\lib\zi\SystemV\EST5EDT.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT+6.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.osgi.services_3.4.0.v20140312-2051.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\ENU\acro20.lng.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File createdC:\Program Files (x86)\Common Files\microsoft shared\VBA\VBA7\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\North_Dakota\Beulah.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.frameworkadmin.nl_ja_4.4.0.v20140623020002.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.di.nl_zh_4.4.0.v20140623020002.jar.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    File opened for modificationC:\Program Files\Java\jre7\lib\zi\Asia\Brunei.pysa4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
  • Drops file in Windows directory
    4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe

    Reported IOCs

    descriptioniocprocess
    File createdC:\Windows\Readme.README4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
  • Enumerates physical storage devices

    Description

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    TTPs

    System Information Discovery
  • Suspicious use of WriteProcessMemory
    4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1040 wrote to memory of 133210404770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.execmd.exe
    PID 1040 wrote to memory of 133210404770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.execmd.exe
    PID 1040 wrote to memory of 133210404770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.execmd.exe
    PID 1040 wrote to memory of 133210404770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.execmd.exe
    PID 1040 wrote to memory of 133210404770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.execmd.exe
    PID 1040 wrote to memory of 133210404770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.execmd.exe
    PID 1040 wrote to memory of 133210404770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.execmd.exe
  • System policy modification
    4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe

    Tags

    TTPs

    Modify Registry

    Reported IOCs

    descriptioniocprocess
    Set value (data)\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\legalnoticetext = 48006900200043006f006d00700061006e0079002c000d000a000d000a00450076006500720079002000620079007400650020006f006e00200061006e00790020007400790070006500730020006f006600200079006f0075007200200064006500760069006300650073002000770061007300200065006e0063007200790070007400650064002e000d000a0044006f006e00270074002000740072007900200074006f00200075007300650020006200610063006b007500700073002000620065006300610075007300650020006900740020007700650072006500200065006e006300720079007000740065006400200074006f006f002e000d000a000d000a0054006f002000670065007400200061006c006c00200079006f00750072002000640061007400610020006200610063006b00200063006f006e0074006100630074002000750073003a000d000a004c00700079006f00740072002e0062006100720063006c00610079004000700072006f0074006f006e006d00610069006c002e0063006f006d000d000a00670061006c0065007400720065006e00640061006c006c004000700072006f0074006f006e006d00610069006c002e0063006f006d000d000a002d002d002d002d002d002d002d002d002d002d002d002d002d002d000d000a000d000a004600410051003a000d000a000d000a0031002e000d000a0020002000200051003a00200048006f0077002000630061006e002000490020006d0061006b00650020007300750072006500200079006f007500200064006f006e0027007400200066006f006f006c0069006e00670020006d0065003f000d000a0020002000200041003a00200059006f0075002000630061006e002000730065006e006400200075007300200032002000660069006c006500730028006d0061007800200032006d00620029002e000d000a000d000a0032002e000d000a0020002000200051003a0020005700680061007400200074006f00200064006f00200074006f002000670065007400200061006c006c002000640061007400610020006200610063006b003f000d000a0020002000200041003a00200044006f006e0027007400200072006500730074006100720074002000740068006500200063006f006d00700075007400650072002c00200064006f006e002700740020006d006f00760065002000660069006c0065007300200061006e0064002000770072006900740065002000750073002e000d000a000d000a0033002e000d000a0020002000200051003a0020005700680061007400200074006f002000740065006c006c0020006d007900200062006f00730073003f000d000a0020002000200041003a002000500072006f007400650063007400200059006f00750072002000530079007300740065006d00200041006d00690067006f002e000d000a000d000a0000004770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    Set value (data)\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\legalnoticecaption = 500059005300410000004770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
Processes 2
  • C:\Users\Admin\AppData\Local\Temp\4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe
    "C:\Users\Admin\AppData\Local\Temp\4770a0447ebc83a36e590da8d01ff4a418d58221c1f44d21f433aaf18fad5a99.exe"
    Modifies extensions of user files
    Drops file in Program Files directory
    Drops file in Windows directory
    Suspicious use of WriteProcessMemory
    System policy modification
    PID:1040
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      Deletes itself
      PID:1332
Network
MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Defense Evasion
    Execution
      Exfiltration
        Initial Access
          Lateral Movement
            Persistence
              Privilege Escalation
                Replay Monitor
                00:00 00:00
                Downloads
                • C:\$Recycle.Bin\S-1-5-21-293278959-2699126792-324916226-1000\desktop.ini

                  MD5

                  a526b9e7c716b3489d8cc062fbce4005

                  SHA1

                  2df502a944ff721241be20a9e449d2acd07e0312

                  SHA256

                  e1b9ce9b57957b1a0607a72a057d6b7a9b34ea60f3f8aa8f38a3af979bd23066

                  SHA512

                  d83d4c656c96c3d1809ad06ce78fa09a77781461c99109e4b81d1a186fc533a7e72d65a4cb7edf689eeccda8f687a13d3276f1111a1e72f7c3cd92a49bce0f88

                • C:\Users\Admin\AppData\Local\Temp\update.bat

                  MD5

                  bf99f2f8d175b9aef55db401f3c49345

                  SHA1

                  9beef2a4448154f943fcba2b2330aaf8e383882a

                  SHA256

                  492820e53f7c019a6f3ee166179378064da00c7d65e162a2432edb97467a0198

                  SHA512

                  edc250dae97c251446f8d71acdc95da52d8dc4ff16c08c6d0e938903b86effaa4643796fa5763f3e934dfccf16312367e25da4a06944166aaa798068b6890b35

                • memory/1040-2-0x0000000076311000-0x0000000076313000-memory.dmp

                • memory/1332-4-0x0000000000000000-mapping.dmp