068fdfd27ba3ef64b297367735c43666c746315cb94ad6767eaf7383c0b9961f

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28/06/2024, 20:03

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General

Target

2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe
Size

731KB
MD5

5b9a1b105f3959739b4757f277d9cf7c
SHA1

719b11025433aaeef3f8b11fef0e642eaeca8824
SHA256

068fdfd27ba3ef64b297367735c43666c746315cb94ad6767eaf7383c0b9961f
SHA512

72bb5b52a8d980342d2d2a5da4760e38fd053bdc37d8b60b3b2c4ceb99192f6fca016b7d1efafa466d4f47fa46360ffd6e6d9df5bd0ff28f2c8e996ca619c49d
SSDEEP

12288:ndiM1tQZfx4ZZA9xihvuuMwJKuR2SSsMO:ndiM1KYwgmIKuR2SSM

Score

7^/10

spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2520	E05.tmp

Loads dropped DLL 2 IoCs

pid	Process
1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe
1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.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
T1552.001

Drops file in System32 directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\mfc140.dll	E05.tmp
File created	C:\Windows\SysWOW64\mswdat10.dll	E05.tmp
File created	C:\Windows\System32\DriverStore\FileRepository\igdlh.inf_amd64_neutral_54a12b57f547d08e\igdumd32.dll	E05.tmp
File created	C:\Windows\SysWOW64\migration\MediaPlayer-DLMigPlugin.dll	E05.tmp
File created	C:\Windows\SysWOW64\sqlunirl.dll	E05.tmp
File created	C:\Windows\SysWOW64\msjet40.dll	E05.tmp
File created	C:\Windows\SysWOW64\msrd3x40.dll	E05.tmp
File created	C:\Windows\SysWOW64\msvbvm60.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\vccorlib120.dll	E05.tmp
File created	C:\Windows\SysWOW64\regedit.exe	E05.tmp
File created	C:\Windows\System32\DriverStore\FileRepository\atiilhag.inf_amd64_neutral_0a660e899f5038a2\atiumdva.dll	E05.tmp
File created	C:\Windows\SysWOW64\d3dxof.dll	E05.tmp
File created	C:\Windows\SysWOW64\dmscript.dll	E05.tmp
File created	C:\Windows\SysWOW64\explorer.exe	E05.tmp
File created	C:\Windows\SysWOW64\iac25_32.ax	E05.tmp
File created	C:\Windows\SysWOW64\mfc40.dll	E05.tmp
File created	C:\Windows\System32\DriverStore\FileRepository\atiilhag.inf_amd64_neutral_0a660e899f5038a2\amdpcom32.dll	E05.tmp
File created	C:\Windows\SysWOW64\d3dim700.dll	E05.tmp
File created	C:\Windows\SysWOW64\dpwsockx.dll	E05.tmp
File created	C:\Windows\SysWOW64\FXSXP32.dll	E05.tmp
File created	C:\Windows\SysWOW64\ivfsrc.ax	E05.tmp
File created	C:\Windows\SysWOW64\mspbde40.dll	E05.tmp
File created	C:\Windows\SysWOW64\ir50_32.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\mfc110.dll	E05.tmp
File created	C:\Windows\SysWOW64\sqlwoa.dll	E05.tmp
File created	C:\Windows\System32\DriverStore\FileRepository\atiilhag.inf_amd64_neutral_0a660e899f5038a2\atiumdag.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\concrt140.dll	E05.tmp
File created	C:\Windows\SysWOW64\expsrv.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\mfc140u.dll	E05.tmp
File created	C:\Windows\SysWOW64\msrepl40.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\vcomp140.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\mfc100u.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\msvcr100.dll	E05.tmp
File created	C:\Windows\System32\DriverStore\FileRepository\nv_lh.inf_amd64_neutral_bc69f20e3115af59\nvd3dum.dll	E05.tmp
File created	C:\Windows\SysWOW64\crtdll.dll	E05.tmp
File created	C:\Windows\SysWOW64\mstext40.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\msvcr120_clr0400.dll	E05.tmp
File created	C:\Windows\SysWOW64\olecli32.dll	E05.tmp
File created	C:\Windows\System32\DriverStore\FileRepository\atiilhag.inf_amd64_neutral_0a660e899f5038a2\atidxx32.dll	E05.tmp
File created	C:\Windows\System32\DriverStore\FileRepository\nv_lh.inf_amd64_neutral_bc69f20e3115af59\nvwgf2um.dll	E05.tmp
File created	C:\Windows\SysWOW64\d3d8.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\mfc120u.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\MSCOMCTL.OCX	E05.tmp
File created	C:\Windows\SysWOW64\msltus40.dll	E05.tmp
File created	C:\Windows\System32\DriverStore\FileRepository\igdlh.inf_amd64_neutral_54a12b57f547d08e\igd10umd32.dll	E05.tmp
File created	C:\Windows\SysWOW64\msjter40.dll	E05.tmp
File created	C:\Windows\SysWOW64\msrd2x40.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\msvcr110.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\msvcr120.dll	E05.tmp
File created	C:\Windows\SysWOW64\InstallShield\_isdel.exe	E05.tmp
File opened for modification	C:\Windows\SysWOW64\mfc120.dll	E05.tmp
File created	C:\Windows\SysWOW64\mfc40u.dll	E05.tmp
File created	C:\Windows\SysWOW64\audiodev.dll	E05.tmp
File created	C:\Windows\SysWOW64\dplayx.dll	E05.tmp
File created	C:\Windows\SysWOW64\ir32_32.dll	E05.tmp
File created	C:\Windows\SysWOW64\ir41_32.ax	E05.tmp
File opened for modification	C:\Windows\SysWOW64\mfc110u.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\atl100.dll	E05.tmp
File created	C:\Windows\SysWOW64\msexcl40.dll	E05.tmp
File created	C:\Windows\SysWOW64\migwiz\dlmanifests\Microsoft-Windows-MediaPlayer\MediaPlayer-DLMigPlugin.dll	E05.tmp
File opened for modification	C:\Windows\SysWOW64\VBAME.DLL	E05.tmp
File created	C:\Windows\SysWOW64\d3dim.dll	E05.tmp
File created	C:\Windows\SysWOW64\dplaysvr.exe	E05.tmp
File opened for modification	C:\Windows\SysWOW64\FM20.DLL	E05.tmp

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORES.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\XLSLICER.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeCollabSync.exe	E05.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\IA32.api	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Help\ITIRCL55.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Smart Tag\FBIBLIO.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\VSTO\vstoee.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\Adobe AIR\Versions\1.0\Adobe AIR.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\OLAPPT.FAE	E05.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AMT\AUMProduct.aup	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\DBGHELP.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTEM.EXE	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WWLIB.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Library\Analysis\ANALYS32.XLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONBttnOL.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLFLTR.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACEXBE.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\msolap100.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MCPS.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORDB.EXE	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OMSMAIN.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\VVIEWER.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\DESKSAM.SAM	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\GIFIMP32.FLT	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSPUB.EXE	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTE.EXE	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PPCORE.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SSGEN.DLL	E05.tmp
File opened for modification	C:\Program Files\7-Zip\7z.sfx	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACETXT.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\Office Setup Controller\Setup.exe	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MAPIPH.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONBttnIELinkedNotes.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GKExcel.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSPST32.DLL	E05.tmp
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Help\hxds.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\TextConv\WksConv\Wkconv.exe	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\EMABLT32.DLL	E05.tmp
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	E05.tmp
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\logsession.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACEEXCH.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\AUTHZAX.DLL	E05.tmp
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeUpdater.dll	E05.tmp
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Onix32.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\msmdlocal.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CNFNOT32.EXE	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ContactPicker.dll	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Web Folders\MSOSV.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INLAUNCH.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OLKFSTUB.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PPSLAX.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PROOF\MSTH7FR.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\TRANSLAT\ESEN\MSB1ESEN.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MEDCAT.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Web Server Extensions\14\BIN\FPSRVUTL.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MIMEDIR.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OIS.EXE	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\NAME.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\OLTASK.FAE	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PROOF\MSTH7EN.DLL	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\NAMECONTROLSERVER.EXE	E05.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OFFXML.DLL	E05.tmp

Drops file in Windows directory 64 IoCs

description	ioc	Process
File created	C:\Windows\winsxs\Backup\wow64_microsoft-windows-p..installerandprintui_31bf3856ad364e35_6.1.7601.17514_none_3eceef6140ec9728_puiobj.dll_343adf45	E05.tmp
File created	C:\Windows\winsxs\Backup\x86_microsoft-windows-newdev_31bf3856ad364e35_6.1.7600.16385_none_114ca177b1fcad24_newdev.exe_7eb73dcd	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.17514_none_ba2f56d3c4bcbafb\explorer.exe	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-iis-legacysnapin_31bf3856ad364e35_6.1.7601.17514_none_e99b83c8fd064a06\inetmgr.dll	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-user32_31bf3856ad364e35_6.1.7601.17514_none_35b31c02b85ccb6e\user32.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-secinit_31bf3856ad364e35_6.1.7600.16385_none_878e469b2e51ce80\secinit.exe	E05.tmp
File opened for modification	C:\Windows\Microsoft.NET\Framework\v4.0.30319\SOS.dll	E05.tmp
File created	C:\Windows\winsxs\Backup\x86_microsoft-windows-s..entication-usermode_31bf3856ad364e35_6.1.7600.16385_none_39f81956d5a8018f_authz.dll_c0d80602	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-scripting-jscript_31bf3856ad364e35_8.0.7601.17514_none_0614df8fb9269bc6\jscript.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-c..dtc-runtime-cluster_31bf3856ad364e35_6.1.7601.17514_none_988fb91deaf45afe\mtxclu.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-credui_31bf3856ad364e35_6.1.7601.17514_none_dd3eb6aced2f8d13\credui.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-i..ersandsecurityzones_31bf3856ad364e35_11.2.9600.16428_none_3b1b8f66337aabc3\urlmon.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-m..-mdac-odbc-jet-jt32_31bf3856ad364e35_6.1.7601.17514_none_55231b83c0849dbc\odbcjt32.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-m..mponents-jetintlerr_31bf3856ad364e35_6.1.7600.16385_none_0f472a3521bdcfd4\msjter40.dll	E05.tmp
File opened for modification	C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-s..native-whitebox-isv_31bf3856ad364e35_6.1.7601.17514_none_eb5947ea4debcf36\RMActivate_isv.exe	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-directx-direct3d11_31bf3856ad364e35_7.1.7601.16492_none_e2d7c9f5b7176f4e\d3d11.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-mp3dmod_31bf3856ad364e35_6.1.7600.16385_none_ecf1800a3afff679\MP3DMOD.DLL	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-com-oleui_31bf3856ad364e35_6.1.7600.16385_none_204a50230f150f07\oledlg.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-cttunesvr_31bf3856ad364e35_6.1.7600.16385_none_efd12d677fabca7b\cttunesvr.exe	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-wmi-management-snapins_31bf3856ad364e35_6.1.7600.16385_none_022f79b2090484a2\wbemcntl.dll	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-mediaplayer-drm_31bf3856ad364e35_6.1.7601.17514_none_d6a8cb040fcd3a85\wmdrmsdk.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_50916076bcb9a742\msvcr90.dll	E05.tmp
File opened for modification	C:\Windows\Microsoft.NET\Framework\v4.0.30319\WPF\wpfgfx_v0400.dll	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-ie-htmlrendering_31bf3856ad364e35_8.0.7601.17514_none_96780994e42bbfd5\mshtml.dll	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-ie-objectcontrolviewer_31bf3856ad364e35_11.2.9600.16428_none_23d2258c5d920952\occache.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-directshow-vfw-capture_31bf3856ad364e35_6.1.7601.17514_none_d88590af85321bf2\vfwwdm32.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-w..sition-uicomponents_31bf3856ad364e35_6.1.7601.17514_none_d0fbe940e38daf1f\wiaacmgr.exe	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-explorerframe_31bf3856ad364e35_6.1.7601.17514_none_2af7b924bed13316\ExplorerFrame.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-i..eoptionalcomponents_31bf3856ad364e35_11.2.9600.16428_none_87f259ebb3f177fa\ConfigureIEOptionalComponents.exe	E05.tmp
File created	C:\Windows\winsxs\Backup\wow64_microsoft-windows-setupapi_31bf3856ad364e35_6.1.7601.17514_none_9d700972113e2691_wowreg32.exe_94fc2d06	E05.tmp
File created	C:\Windows\winsxs\Backup\x86_microsoft-windows-shlwapi_31bf3856ad364e35_6.1.7601.17514_none_fbe11bf002f10455_shlwapi.dll_1eec0a2e	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-mfplay_31bf3856ad364e35_6.1.7601.17514_none_5f24d6869e761d83\MFPlay.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-migrationengine_31bf3856ad364e35_6.1.7601.17514_none_5aaf419e398215df\mighost.exe	E05.tmp
File created	C:\Windows\winsxs\x86_netfx-applaunch_exe_b03f5f7f11d50a3a_6.1.7601.17514_none_99931ad927972550\AppLaunch.exe	E05.tmp
File created	C:\Windows\assembly\GAC_32\System.Data.OracleClient\2.0.0.0__b77a5c561934e089\System.Data.OracleClient.dll	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-wmi-core-providerhost_31bf3856ad364e35_6.1.7601.17514_none_78dd6e4cd6655603\WmiPrvSE.exe	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-i..ersandsecurityzones_31bf3856ad364e35_8.0.7601.17514_none_d1a4c8feac0dfcdb\urlmon.dll	E05.tmp
File created	C:\Windows\winsxs\Backup\wow64_microsoft-windows-s..urationengineclient_31bf3856ad364e35_6.1.7601.17514_none_a088921d241bbb4e_scecli.dll_149e0f7b	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-rasautodial_31bf3856ad364e35_6.1.7600.16385_none_76239aafb364e805\rasautou.exe	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-w..etwork-setup-wizard_31bf3856ad364e35_6.1.7600.16385_none_fb26c75d92790b8f\setupSNK.exe	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-htmlhelp-infotech_31bf3856ad364e35_6.1.7601.17514_none_f8ab56ff71fc562a\itircl.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-i..tocolimplementation_31bf3856ad364e35_8.0.7601.17514_none_1eaaa4a07717236e\wininet.dll	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-directshow-core_31bf3856ad364e35_6.1.7601.17514_none_0eeae7a238e677c8\quartz.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-homegroup-controlpanel_31bf3856ad364e35_6.1.7601.17514_none_b83c28f41f93f405\hgcpl.dll	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-m..onwizardapplication_31bf3856ad364e35_6.1.7601.17514_none_22f5c6aadf559287\wet.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-errorreportingfaults_31bf3856ad364e35_6.1.7601.17514_none_720e868d9b0b6a44\Faultrep.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-isoburn_31bf3856ad364e35_6.1.7601.17514_none_e83a110af77d5aa7\isoburn.exe	E05.tmp
File created	C:\Windows\winsxs\x86_netfx35linq-csharp_31bf3856ad364e35_6.1.7601.17514_none_193318f5726bf1d7\csc.exe	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-rasconnectionmanager_31bf3856ad364e35_6.1.7601.17514_none_c79aef32ab85d92b\cmpbk32.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-ie-devtools_31bf3856ad364e35_8.0.7601.17514_none_5866bdf3151a6faf\iedvtool.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-ie-pdm_31bf3856ad364e35_8.0.7601.17514_none_0a379bcfbdcffb74\msdbg2.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-ie-vgx_31bf3856ad364e35_11.2.9600.16428_none_736f88f5456bb7f2\VGX.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-msftedit_31bf3856ad364e35_6.1.7601.17514_none_d7d862f19573a5ff\msftedit.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-vcm-core-codecs_31bf3856ad364e35_6.1.7601.17514_none_6eaa2afd36b1e303\ir32_32.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-directx-direct3d_31bf3856ad364e35_6.1.7600.16385_none_eb246466b6cc92e7\d3dim.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-wmvsencd_31bf3856ad364e35_6.1.7600.16385_none_66500403061ec016\WMVSENCD.DLL	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-a..c-performance-layer_31bf3856ad364e35_6.1.7600.16385_none_100d67cc0062d5b0\dmscript.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-audio-mmecore-base_31bf3856ad364e35_6.1.7601.17514_none_b7e72625aff23492\winmm.dll	E05.tmp
File created	C:\Windows\winsxs\wow64_microsoft-windows-syncinfrastructure_31bf3856ad364e35_6.1.7600.16385_none_f838d0115142247e\SyncInfrastructure.dll	E05.tmp
File created	C:\Windows\winsxs\amd64_atiilhag.inf_31bf3856ad364e35_6.1.7601.17514_none_03c46b205be81dfd\amdpcom32.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-imagingengine_31bf3856ad364e35_6.1.7601.17514_none_2df065c88c5d1cef\ImagingEngine.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-m..-downlevelmanifests_31bf3856ad364e35_6.1.7601.17514_none_04801f69e1dbd8e6\WMIMigrationPlugin.dll	E05.tmp
File created	C:\Windows\winsxs\x86_microsoft-windows-m..tion-isolationlayer_31bf3856ad364e35_6.1.7601.17514_none_5ff76bfa669f084b\migisol.dll	E05.tmp

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe
1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe
1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2520	1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe	28
PID 1660 wrote to memory of 2520	1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe	28
PID 1660 wrote to memory of 2520	1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe	28
PID 1660 wrote to memory of 2520	1660	2024-06-28_5b9a1b105f3959739b4757f277d9cf7c_bkransomware.exe	28

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⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Local\Temp\E05.tmp
  C:\Users\Admin\AppData\Local\Temp\E05.tmp
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Drops file in Windows directory
  PID:2520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\E05.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
memory/1660-0-0x0000000000290000-0x00000000002D7000-memory.dmp

Filesize
284KB

Download