Analysis Overview
SHA256
b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a
Threat Level: Likely malicious
The file b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a was found to be: Likely malicious.
Malicious Activity Summary
Renames multiple (3635) files with added filename extension
Renames multiple (5187) files with added filename extension
Drops file in Program Files directory
Unsigned PE
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-06-11 02:12
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-11 02:12
Reported
2024-06-11 02:14
Platform
win7-20240508-en
Max time kernel
150s
Max time network
120s
Command Line
Signatures
Renames multiple (3635) files with added filename extension
Drops file in Program Files directory
Processes
C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe
"C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe"
Network
Files
C:\$Recycle.Bin\S-1-5-21-3691908287-3775019229-3534252667-1000\desktop.ini.tmp
| MD5 | 75c085d3572b2ff88b2501935d13cebb |
| SHA1 | 8758125a329ff6cf5893cb30058278a6eebfd8fe |
| SHA256 | 324ed218b4adc31fe6346abcc57838679a22a9b27e261398998392aa82815a38 |
| SHA512 | da6ed4e5b4d2259b15e080b136471e1486e1d60b5901e9bc8e332ad68100fcf60213f04c08a9e0562c12511d7a14d221c44270923277983fc0e254e5e63f24cd |
C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.xml.tmp
| MD5 | 474fdea90b15b76234ec2cd7bf5173f0 |
| SHA1 | 4acc62965a0a719d772f5f0b765b24d498312013 |
| SHA256 | da4d816bdff6b64f3fbf9fcfa1e3395b3d8095fa51d0e0a79d582ae3c6f55056 |
| SHA512 | 0c647f698bbf49937c8e80f4583789fd99ff1ebe96e7dd45e389ad8f6e67579889bb0729fada3023716111b35ea4fdfe255f0c6b47445407cfbba064a7e674e8 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-11 02:12
Reported
2024-06-11 02:14
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
Renames multiple (5187) files with added filename extension
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Common Files\System\msadc\de-DE\msdaprsr.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Common Files\System\Ole DB\ja-JP\sqloledb.rll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.Primitives.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationProvider.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Java\jre-1.8\legal\javafx\glib.md.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\sr-spl.txt.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\i640.cab.cat.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\ThirdPartyNotices.MSHWLatin.txt.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Office16\msotelemetry.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0000-1000-0000000FF1CE.xml.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\ja.txt.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Formats.Tar.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XPath.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Java\jdk-1.8\jre\bin\jsdt.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10.mp4.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Grace-ppd.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.zh-cn.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.Primitives.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\Personal2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.MashupEngine.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.Encodings.Web.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_KMS_Client_AE-ppd.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_OEM_Perp-ul-phn.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Grace-ppd.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\vfs\Fonts\private\ANTQUABI.TTF.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\7-Zip\7z.exe.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.NETCore.App.deps.json.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\WindowsFormsIntegration.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Java\jdk-1.8\jre\lib\cmm\LINEAR_RGB.pf.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Java\jre-1.8\bin\unpack.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Integration\C2RManifest.dcfmui.msi.16.en-us.xml.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\Microsoft.VisualBasic.Forms.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\WindowsFormsIntegration.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\PresentationUI.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\GB.XSL.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\WindowsFormsIntegration.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Java\jre-1.8\bin\jabswitch.exe.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_KMS_Client-ul-oob.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Java\jdk-1.8\legal\jdk\cldr.md.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Office16\MSIPC\sv\msipc.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XmlSerializer.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ObjectModel.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encoding.CodePages.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\MSInfo\de-DE\msinfo32.exe.mui.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Common Files\System\msadc\en-US\msdaprsr.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp5-ul-oob.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\Microsoft.VisualBasic.Forms.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Java\jdk-1.8\jre\bin\sunmscapi.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-ul-oob.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\ReachFramework.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\vfs\Common AppData\Microsoft Help\MS.POWERPNT.16.1033.hxn.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\ReachFramework.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\WindowsFormsIntegration.resources.dll.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_ghost_profile.png.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Google\Chrome\Application\110.0.5481.104\chrome_100_percent.pak.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Trial-ppd.xrm-ms.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Office16\1033\offsymxl.ttf.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-140.png.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
| File created | C:\Program Files\Common Files\microsoft shared\ink\en-US\InkObj.dll.mui.tmp | C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe
"C:\Users\Admin\AppData\Local\Temp\b1af6d26e7e55230331d26ab5c21b3408d15f976dfadd47287e07e30cfb93e1a.exe"
Network
Files
C:\$Recycle.Bin\S-1-5-21-2804150937-2146708401-419095071-1000\desktop.ini.tmp
| MD5 | 0bc20fad162bafa9aa9899d3b3b818a0 |
| SHA1 | 5135daa5d5a00cc0de0b1c9de959fc54844a97fa |
| SHA256 | e9a212a97a37b9850638da17fae4a3d0246d72b7844a33fa961ec383ba3789f7 |
| SHA512 | 0767d31ede0c7cd8366a39369e9483b389a81c37f3a127ca61617822708e9e5a2cb90e9309926f2aebd1f9759b501981516f4745ed0224bde0f16745f3ebc62d |
C:\Program Files\7-Zip\7-zip.dll.tmp
| MD5 | 01a5e617e32137877e8a781ca53dba30 |
| SHA1 | 13f1fc3caf9ed91c541b86465d3e3ef74d5cf5b2 |
| SHA256 | 66df3fb7173b9f71cdfb372b7451427ed0bbc7062552dd7a02cf60bf4fc605f3 |
| SHA512 | 1dccea5f39a762eeed4e05c6ce1761837ab9190d9a4c4b4f757f6c13373023f11dbc9001b8ef27b4191b02711c200f274a9667301af961cf81e4df718222b21b |