Analysis
- max time kernel
149s - max time network
98s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
05/10/2024, 18:55
Behavioral task
behavioral1
Sample
dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe
Resource
win7-20240903-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
4 signatures
150 seconds
General
- Target dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe
- Size 57KB
- Sample241005-xk2tlsthqa
- SHA256 dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6
- MD5 18949accf72d2d436cce85b0bfd2e2bf
- SHA1 fbb1c5baf1c53b412f511e9b73b601bd6fb13fc2
- SHA512 eb318378ba336e12a12b086b748fa0497cf6c0c5c60c0c874b4a2b1bc0106a32f3aac32489dcf0f2897883008a1c8257ae61bc20ab7aa812f8b718a332d80401
- SSDEEP 768:kBT37CPKKIm0CAbLg++PJHJzIWD+dVdCYgck5sIZFlzc3/Sg2aDM9uA9DM9uAFzI:CTWn1++PJHJXA/OsIZfzc3/Q8zxY5L
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Renames multiple (5188) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
resource yara_rule behavioral2/memory/808-0-0x0000000000400000-0x000000000040A000-memory.dmp upx behavioral2/files/0x0009000000023419-2.dat upx behavioral2/files/0x0014000000022913-6.dat upx behavioral2/memory/808-909-0x0000000000400000-0x000000000040A000-memory.dmp upx - Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.FileSystem.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\vfs\Common AppData\Microsoft\OFFICE\DocumentRepository.ico.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Common Files\microsoft shared\VC\msdia100.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-ul-phn.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\+Connect to New Data Source.odc.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ppd.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ppd.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019MSDNR_Retail-ul-oob.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TabTip.exe.mui.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\UIAutomationTypes.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Input.Manipulations.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-ul-oob.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\7-Zip\Lang\uk.txt.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\nl.pak.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Retail-ppd.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\OSFUI.DLL.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.InteropServices.JavaScript.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Xaml.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-util-l1-1-0.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ul-oob.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-black_scale-140.png.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Linq.Parallel.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Java\jre-1.8\legal\jdk\relaxngom.md.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Grace-ul-oob.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-ppd.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\msjet.xsl.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\trdtv2r41.xsl.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\FPA_FA000000006\FA000000006.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\MSIPC\nl\msipc.dll.mui.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Common Files\System\Ole DB\ja-JP\sqlxmlx.rll.mui.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Input.Manipulations.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Java\jre-1.8\lib\deploy\splash_11-lic.gif.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Forms.Primitives.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\WordR_Retail-ul-oob.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\UIAutomationProvider.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\WindowsBase.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\UIAutomationProvider.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Java\jre-1.8\LICENSE.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial2-ul-oob.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16EnterpriseVL_Bypass30-ul-oob.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Grace-ppd.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Shims.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.deps.json.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\security\trusted.libraries.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-white_scale-180.png.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\OpenSSL64.DllA\openssl64.dlla.manifest.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\vfs\Common AppData\Microsoft\OFFICE\SharePointPortalSite.ico.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\WINWORD_COL.HXT.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-xstate-l2-1-0.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\MSWORD.OLB.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\vfs\Fonts\private\DUBAI-LIGHT.TTF.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.VisualBasic.Forms.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-processthreads-l1-1-0.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-ul-phn.xrm-ms.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.TransformDataByExample.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\MSIPC\vi\msipc.dll.mui.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\ONBttnWD.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\NewCommentRTL.White.png.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\Common Files\System\fr-FR\wab32res.dll.mui.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\PresentationFramework.resources.dll.tmp dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe"C:\Users\Admin\AppData\Local\Temp\dcb5dd6daea8df5cc42138b0df06c2d5f7f80b8a0aa2f2aa4fc5456b8ab5c8c6.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:808
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-656926755-4116854191-210765258-1000\desktop.ini.tmp
- Size 57KB
- SHA256 71653346c7d7a4093fb52d626f4c664110541fd565a34e12b6e978e9cd0b9d04
- MD5 5c54ec1876e60d96dfd153c30742de9a
- SHA1 fe79709a26321271d62f67eb2902ab27546b3c22
- SHA512 8207753a5699f55df443f7676f996884c94cee0d0b59e58cf5e24cdc82ba7c22590e01962b7743854c73d366427b183fc9cb0314833f0c9c572eb8a1cb51e9d9
- SSDEEP 768:kBT37CPKKIm0CAbLg++PJHJzIWD+dVdCYgck5sIZFlzc3/Sg2aDM9uA9DM9uAFzS:CTWn1++PJHJXA/OsIZfzc3/Q8zxY5l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\7-Zip\7-zip.dll.tmp
- Size 156KB
- SHA256 99b486e834042537c9a2747dc41bc1883b97def09d5108e4ccd77d563b722353
- MD5 fc434f5da9aca5fb7cbf17bc86c55623
- SHA1 6034c96fbc6be0c8e63a082c3274613179840ef3
- SHA512 e2db7a4d0f57c71e1a4cb046e3b4ba51cb30d5008f20197645b1251defc11ae1723f0c2b131f75b8742a70ecab8a1ff13fa00604228620aabd93db592f82227b
- SSDEEP 1536:CTWn1++PJHJXA/OsIZfzc3/Q8zxY5U4pWHlPEXZzjUq3th5f6utM5vLNinVmWvMx:KQSox53WHIjN3tj6qnv0b2UrXkbvLC
- MD5 SHA1 SHA512 SSDEEP