Analysis
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max time kernel
126s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28/06/2024, 20:03
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe
Resource
win7-20231129-en
windows7-x64
8 signatures
150 seconds
General
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Target
2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe
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Size
731KB
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MD5
5b9a1b105f3959739b4757f277d9cf7c
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SHA1
719b11025433aaeef3f8b11fef0e642eaeca8824
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SHA256
068fdfd27ba3ef64b297367735c43666c746315cb94ad6767eaf7383c0b9961f
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SHA512
72bb5b52a8d980342d2d2a5da4760e38fd053bdc37d8b60b3b2c4ceb99192f6fca016b7d1efafa466d4f47fa46360ffd6e6d9df5bd0ff28f2c8e996ca619c49d
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SSDEEP
12288:ndiM1tQZfx4ZZA9xihvuuMwJKuR2SSsMO:ndiM1KYwgmIKuR2SSM
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1804 71D4.tmp -
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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Drops file in System32 directory 58 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\mfc120.dll 71D4.tmp File created C:\Windows\SysWOW64\crtdll.dll 71D4.tmp File created C:\Windows\SysWOW64\FXSXP32.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\mfc100.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\PrintConfig.dll 71D4.tmp File created C:\Windows\SysWOW64\rdvgogl32.dll 71D4.tmp File created C:\Windows\SysWOW64\ivfsrc.ax 71D4.tmp File created C:\Windows\SysWOW64\msjtes40.dll 71D4.tmp File created C:\Windows\SysWOW64\msxbde40.dll 71D4.tmp File created C:\Windows\SysWOW64\msvbvm60.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\vcomp140.dll 71D4.tmp File created C:\Windows\System32\DriverStore\FileRepository\prnms003.inf_x86_360f6f3a7c4b3433\I386\PrintConfig.dll 71D4.tmp File created C:\Windows\SysWOW64\InstallShield\setup.exe 71D4.tmp File created C:\Windows\SysWOW64\d3d8.dll 71D4.tmp File created C:\Windows\SysWOW64\expsrv.dll 71D4.tmp File created C:\Windows\SysWOW64\hh.exe 71D4.tmp File created C:\Windows\SysWOW64\msrepl40.dll 71D4.tmp File created C:\Windows\SysWOW64\ir32_32original.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\mfc110u.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\mfc140u.dll 71D4.tmp File created C:\Windows\SysWOW64\msjet40.dll 71D4.tmp File created C:\Windows\SysWOW64\mswstr10.dll 71D4.tmp File created C:\Windows\SysWOW64\sqlwoa.dll 71D4.tmp File created C:\Windows\SysWOW64\d3dxof.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\mfc100u.dll 71D4.tmp File created C:\Windows\SysWOW64\odbcjt32.dll 71D4.tmp File created C:\Windows\SysWOW64\mfc40u.dll 71D4.tmp File created C:\Windows\SysWOW64\msorcl32.dll 71D4.tmp File created C:\Windows\System32\DriverStore\FileRepository\ntprint.inf_x86_c62e9f8067f98247\I386\PSCRIPT5.DLL 71D4.tmp File opened for modification C:\Windows\SysWOW64\concrt140.dll 71D4.tmp File created C:\Windows\SysWOW64\olecli32.dll 71D4.tmp File created C:\Windows\SysWOW64\sqlunirl.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\atl110.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\mfc140.dll 71D4.tmp File created C:\Windows\System32\DriverStore\FileRepository\ntprint.inf_x86_c62e9f8067f98247\I386\PS5UI.DLL 71D4.tmp File opened for modification C:\Windows\SysWOW64\atl100.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\mfc120u.dll 71D4.tmp File created C:\Windows\SysWOW64\mspbde40.dll 71D4.tmp File created C:\Windows\SysWOW64\mfc40.dll 71D4.tmp File created C:\Windows\SysWOW64\msexch40.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\msvcr100.dll 71D4.tmp File created C:\Windows\SysWOW64\msvcrt20.dll 71D4.tmp File created C:\Windows\SysWOW64\OneDriveSetup.exe 71D4.tmp File created C:\Windows\SysWOW64\acwow64.dll 71D4.tmp File created C:\Windows\SysWOW64\AppVEntSubsystems32.dll 71D4.tmp File created C:\Windows\SysWOW64\ir50_32original.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\mfc110.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\vccorlib120.dll 71D4.tmp File created C:\Windows\SysWOW64\gnsdk_fp.dll 71D4.tmp File created C:\Windows\SysWOW64\ir41_32original.dll 71D4.tmp File created C:\Windows\SysWOW64\msrd3x40.dll 71D4.tmp File created C:\Windows\SysWOW64\InstallShield\_isdel.exe 71D4.tmp File opened for modification C:\Windows\SysWOW64\msvcr110.dll 71D4.tmp File created C:\Windows\SysWOW64\olesvr32.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\opencl.dll 71D4.tmp File created C:\Windows\SysWOW64\iac25_32.ax 71D4.tmp File created C:\Windows\SysWOW64\d3dim.dll 71D4.tmp File opened for modification C:\Windows\SysWOW64\msvcr120.dll 71D4.tmp -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\dbghelp.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Multimedia\MPP\WindowsMedia.mpp 71D4.tmp File opened for modification C:\Program Files\7-Zip\7zCon.sfx 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Office16\ADAL.DLL 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Office16\ADALPREVIOUS.DLL 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Office16\Mso40UIwin32client.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\Interceptor.dll 71D4.tmp File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe 71D4.tmp File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R32.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\OCHelper.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Accessibility.api 71D4.tmp File opened for modification C:\Program Files (x86)\Common Files\Microsoft Shared\VSTO\10.0\VSTOMessageProvider.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\IEAWSDC.DLL 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ACE.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ScCore.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Multimedia\MPP\QuickTime.mpp 71D4.tmp File opened for modification C:\Program Files\7-Zip\Uninstall.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AIDE.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Common Files\Java\Java Update\jucheck.exe 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOSB.DLL 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\xmsrv.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\NPSPWRAP.DLL 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\ONBttnIE.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Office16\ONNXRuntime-0.5.X.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\rt3d.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\SaveAsRTF.api 71D4.tmp File created C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroPDFImpl.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Common Files\Microsoft Shared\VC\msdia100.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\EQUATION\concrt140.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Office16\Mso20win32client.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\adoberfp.dll 71D4.tmp File created C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroPDF.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Office16\concrt140.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\URLREDIR.DLL 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\sqlite.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\STSCOPY.DLL 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins3d\drvDX9.x3d 71D4.tmp File opened for modification C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARMHelper.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AGM.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\OWSSUPP.DLL 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\libGLESv2.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AIR\nppdf32.dll 71D4.tmp File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\EScript.api 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Multimedia.api 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\SendMail.api 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\msolap.dll 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHEV.DLL 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\d3dcompiler_43.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\GROOVEEX.DLL 71D4.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\NAMEEXT.DLL 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\BIB.dll 71D4.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\nppdf32.dll 71D4.tmp -
Drops file in Windows directory 64 IoCs
description ioc Process File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\nppdf32.dll 71D4.tmp File created C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\FDFFile_8.ico 71D4.tmp File created C:\Windows\Microsoft.NET\assembly\GAC_32\Microsoft.VisualBasic.Activities.Compiler\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.Activities.Compiler.dll 71D4.tmp File created C:\Windows\WinSxS\Backup\wow64_microsoft-windows-atl_31bf3856ad364e35_10.0.19041.746_none_936e34e4ece273a7_atl.dll_0c7220db 71D4.tmp File created C:\Windows\WinSxS\Backup\wow64_microsoft-windows-rasautodial_31bf3856ad364e35_10.0.19041.546_none_f827f008f8832bd5_rasautou.exe_477abe34 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\AcroPDFImpl.dll 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\adobearmhelper.exe.BDCA7721_F290_4124_BBED_7A15FE7694EB 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\sqlite.dll 71D4.tmp File created C:\Windows\Microsoft.NET\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\1D5E3C0FEDA1E123187686FED06E995A\10.0.40219\F_CENTRAL_msvcr100_x86 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\logtransport2.exe 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\Search.api 71D4.tmp File created C:\Windows\assembly\GAC_32\System.Data\2.0.0.0__b77a5c561934e089\System.Data.dll 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\drvSOFT.x3d 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\eula.exe 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\Annots.api 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\EScript.api 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\rt3d.dll 71D4.tmp File created C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\XDPFile_8.ico 71D4.tmp File created C:\Windows\WinSxS\Backup\wow64_microsoft-windows-advapi32_31bf3856ad364e35_10.0.19041.1052_none_6277ca3070041917_advapi32.dll_9512793c 71D4.tmp File created C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\XFDFFile_8.ico 71D4.tmp File created C:\Windows\Microsoft.NET\assembly\GAC_32\System.Data.OracleClient\v4.0_4.0.0.0__b77a5c561934e089\System.Data.OracleClient.dll 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\adoberfp.dll 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\Bib.dll_NON_OPT 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\Flash.mpp 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\libcef.dll.15EE1C08_ED51_465D_B6F3_FB152B1CC435 71D4.tmp File created C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\SC_Reader.ico 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\nppdf32.dll_Apollo 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\QuickTime.mpp 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\SendMail.api 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\1D5E3C0FEDA1E123187686FED06E995A\10.0.40219\F_CENTRAL_atl100_x86 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\AcroForm.api__NON_OPT 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\AdobeCollabSync.exe 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\drvDX9.x3d 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\F_CENTRAL_vccorlib120_x86.194841A2_D0F2_3B96_9F71_05BA91BEA0FA 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\AcroRd32.exe 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\reader_sl.exe 71D4.tmp File created C:\Windows\WinSxS\Backup\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.19041.1110_none_c0da534e38c01f4d_comctl32.dll_9c499789 71D4.tmp File created C:\Windows\assembly\GAC_32\PresentationCore\3.0.0.0__31bf3856ad364e35\wpfgfx_v0300.dll 71D4.tmp File created C:\Windows\assembly\GAC_32\System.Data.OracleClient\2.0.0.0__b77a5c561934e089\System.Data.OracleClient.dll 71D4.tmp File created C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\APIFile_8.ico 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\MCIMPP.mpp 71D4.tmp File created C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\PDFFile_8.ico 71D4.tmp File created C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\SecStoreFile.ico 71D4.tmp File created C:\Windows\WinSxS\Backup\wow64_microsoft-windows-s..ty-kerbclientshared_31bf3856ad364e35_10.0.19041.1288_none_6115038ba57fcb33_kerbclientshared.dll_1fa7b356 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\1D5E3C0FEDA1E123187686FED06E995A\10.0.40219\F_CENTRAL_mfc100u_x86 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\Accessibility.api_NON_OPT 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\Ace.dll_NON_OPT 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\SaveAsRTF.api_NON_OPT 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\00006109E70000000100000000F01FEC\16.0.12527\concrt140.dll_x86 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\AcroPDF.dll 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\AcroRd32.dll 71D4.tmp File created C:\Windows\Microsoft.NET\assembly\GAC_32\Microsoft.AppV.AppvClientComConsumer\v4.0_10.0.0.0__31bf3856ad364e35\Microsoft.AppV.AppvClientComConsumer.dll 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\acrocef.exe.15EE1C08_ED51_465D_B6F3_FB152B1CC435 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\F_CENTRAL_msvcr120_x86.194841A2_D0F2_3B96_9F71_05BA91BEA0FA 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\WindowsMedia.mpp 71D4.tmp File created C:\Windows\WinSxS\Backup\wow64_microsoft-windows-com-base-qfe-ole32_31bf3856ad364e35_10.0.19041.1202_none_2b327e97dbe87a1a_ole32.dll_e9dcc2e3 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\logsession.dll 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\Multimedia.api_NON_OPT 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\PPKLite.api 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\ReadOutLoud.api 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\acrobroker.exe 71D4.tmp File created C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\acrotextextractor.exe 71D4.tmp File created C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\PDXFile_8.ico 71D4.tmp -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 3496 2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe 3496 2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe 3496 2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3496 wrote to memory of 1804 3496 2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe 81 PID 3496 wrote to memory of 1804 3496 2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe 81 PID 3496 wrote to memory of 1804 3496 2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3496 -
C:\Users\Admin\AppData\Local\Temp\71D4.tmpC:\Users\Admin\AppData\Local\Temp\71D4.tmp2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
PID:1804
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
145KB
MD5c610e7ccd6859872c585b2a85d7dc992
SHA1362b3d4b72e3add687c209c79b500b7c6a246d46
SHA25614063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041
SHA5128570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666