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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
28/04/2023, 15:19
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
blackbasta.exe
Resource
win7-20230220-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
blackbasta.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
4 signatures
150 seconds
General
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Target
blackbasta.exe
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Size
636KB
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MD5
267d5c3137d313ce1a86c2f255a835e6
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SHA1
c7a37c0edeffd23777cca44f9b49076be1bd43e6
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SHA256
17205c43189c22dfcb278f5cc45c2562f622b0b6280dcd43cc1d3c274095eb90
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SHA512
9c119a9f973dae77f2cdd6a855ae45c20660aadc5c592f6d06f6360dd0bb5a380d0ed1fcc23c0cb721da70bcca7d32db46181be675bf0587276d35d6da26a31e
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SSDEEP
12288:aEky5bwpy02iRaeXCP2CIcdoKAXMr+Mr+kJZ4:j02iRaeHPcdo18rTrf6
Score
8/10
Malware Config
Signatures
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Modifies extensions of user files 16 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\StepDisconnect.crw => C:\Users\Admin\Pictures\StepDisconnect.crwencrypted blackbasta.exe File renamed C:\Users\Admin\Pictures\TestMerge.png => C:\Users\Admin\Pictures\TestMerge.pngencrypted blackbasta.exe File opened for modification C:\Users\Admin\Pictures\UseConvertTo.tiffencrypted blackbasta.exe File opened for modification C:\Users\Admin\Pictures\WatchLimit.pngencrypted blackbasta.exe File renamed C:\Users\Admin\Pictures\DisableFind.tiff => C:\Users\Admin\Pictures\DisableFind.tiffencrypted blackbasta.exe File renamed C:\Users\Admin\Pictures\RestartWrite.raw => C:\Users\Admin\Pictures\RestartWrite.rawencrypted blackbasta.exe File renamed C:\Users\Admin\Pictures\RestoreComplete.tiff => C:\Users\Admin\Pictures\RestoreComplete.tiffencrypted blackbasta.exe File opened for modification C:\Users\Admin\Pictures\StepDisconnect.crwencrypted blackbasta.exe File opened for modification C:\Users\Admin\Pictures\DisableFind.tiffencrypted blackbasta.exe File opened for modification C:\Users\Admin\Pictures\RestoreComplete.tiffencrypted blackbasta.exe File renamed C:\Users\Admin\Pictures\ShowCompare.crw => C:\Users\Admin\Pictures\ShowCompare.crwencrypted blackbasta.exe File opened for modification C:\Users\Admin\Pictures\ShowCompare.crwencrypted blackbasta.exe File opened for modification C:\Users\Admin\Pictures\RestartWrite.rawencrypted blackbasta.exe File opened for modification C:\Users\Admin\Pictures\TestMerge.pngencrypted blackbasta.exe File renamed C:\Users\Admin\Pictures\UseConvertTo.tiff => C:\Users\Admin\Pictures\UseConvertTo.tiffencrypted blackbasta.exe File renamed C:\Users\Admin\Pictures\WatchLimit.png => C:\Users\Admin\Pictures\WatchLimit.pngencrypted blackbasta.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\Desktop\Wallpaper blackbasta.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\THIRDPARTYLICENSEREADME-JAVAFX.txtencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Trial-pl.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Grace-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_OEM_Perp-ul-phn.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_KMS_Client_AE-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Mozilla Firefox\api-ms-win-core-file-l2-1-0.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Retail-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16EnterpriseVL_Bypass30-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Retail-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Retail-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\ConvertToPush.jpgencrypted blackbasta.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\glass.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\msvcr100.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ul-phn.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\VideoLAN\VLC\README.txtencrypted blackbasta.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exeencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_MAK_AE-ul-phn.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp2-pl.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Trial-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ul-phn.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Mozilla Firefox\msvcp140.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\ssvagent.exeencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Subscription-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-phn.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\lib\currency.dataencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Trial-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_KMS_Client_AE-ul.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\7-Zip\Lang\en.tttencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_OEM_Perp-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msotd.exeencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MYSL.ICOencrypted blackbasta.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe.sigencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\concrt140.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_BypassTrial180-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_SubTrial-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_KMS_Client_AE-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc.exeencrypted blackbasta.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\javaw.exeencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTrial-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOARIACAPI.DLLencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoasb.exeencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial5-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Personal2019DemoR_BypassTrial180-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Grace-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Retail-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Retail-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ppd.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_MAK_AE-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msvcp140.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\vcruntime140.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\C2R32.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial1-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_OEM_Perp-pl.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Mozilla Firefox\nss3.dllencrypted blackbasta.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\bin\jmc.iniencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-ul-phn.xrm-msencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0115-0409-1000-0000000FF1CE.xmlencrypted blackbasta.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\i640.hashencrypted blackbasta.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_SubTrial-pl.xrm-msencrypted blackbasta.exe