Analysis
- max time kernel
120s - max time network
117s - 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, 19:55
Behavioral task
behavioral1
Sample
f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe
Resource
win7-20240708-en
windows7-x64
4 signatures
120 seconds
Behavioral task
behavioral2
Sample
f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
4 signatures
120 seconds
General
- Target f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe
- Size 100KB
- Sample241005-ynh2ca1cjp
- SHA256 f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04d
- MD5 58f275dbd14b3956575a7889c4cc6f10
- SHA1 978e51450fdc09850fd76f15b00530333d8d22b4
- SHA512 8321ba7bd8be11206ddf9808d3ee884d54f02718ee76e4ccd9cf5391bf1cd043d183db12756ad136fc28a4f138cf75af10677b2dadc7c087b011858ea5a683e2
- SSDEEP 1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxY5jVBChFd7naVF5sQwyaq6ChFd7nab:fnyiQSox5k
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Renames multiple (4361) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
resource yara_rule behavioral2/memory/3304-0-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/files/0x0009000000023437-2.dat upx behavioral2/files/0x00040000000228f4-6.dat upx behavioral2/memory/3304-846-0x0000000000400000-0x000000000040B000-memory.dmp upx - Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\Java\jdk-1.8\include\jni.h.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_KMS_Client_AE-ul.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Data.OData.Query.NetFX35.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\MLASeventhEditionOfficeOnline.xsl.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\dotnet.exe.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-memory-l1-1-0.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Retail-pl.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-pl.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\Configuration\ssn_high_group_info.txt.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\excel-udf-host.win32.bundle.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.ReaderWriter.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationUI.resources.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Integration\C2RManifest.shared.Office.x-none.msi.16.x-none.xml.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ul-phn.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-console-l1-1-0.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ul-oob.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\WWINTL.DLL.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Common Files\microsoft shared\ink\uk-UA\tipresx.dll.mui.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Common Files\System\wab32.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-math-l1-1-0.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.TypeExtensions.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\LyncBasic_Eula.txt.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART6.BDR.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Common Files\System\ado\es-ES\msader15.dll.mui.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Internet Explorer\sqmapi.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-pl.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-ppd.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Json.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\Microsoft.VisualBasic.Forms.resources.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jdk-1.8\legal\jdk\asm.md.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Smokey Glass.eftx.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\ReachFramework.resources.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ul-phn.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jre-1.8\legal\jdk\asm.md.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_KMS_Client-ul-oob.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.Primitives.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\WindowsFormsIntegration.resources.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\java.exe.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\jsdt.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\vi.pak.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-pl.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TabTip.exe.mui.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Common Files\System\ado\it-IT\msader15.dll.mui.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationUI.resources.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\UIAutomationProvider.resources.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\coreclr.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ul-oob.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\WordVL_KMS_Client-ul.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\jvm.hprof.txt.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ppd.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ul-oob.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ppd.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\plugin2\vcruntime140.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\Client2019_eula.txt.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.ReportingServices.Authorization.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\7-Zip\Lang\kaa.txt.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\System.Xaml.resources.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-ul-phn.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_Subscription-pl.xrm-ms.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Controls.Ribbon.resources.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Input.Manipulations.dll.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe File created C:\Program Files\Java\jdk-1.8\legal\jdk\relaxngdatatype.md.tmp f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.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 f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe"C:\Users\Admin\AppData\Local\Temp\f91a3ab4a77e9a360a5f6f7f8cff36b75905526a33e02d167c9665ac99bbe04dN.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3304
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-2392887640-1187051047-2909758433-1000\desktop.ini.tmp
- Size 100KB
- SHA256 49b217cb15c48559184613fc99c8ebccac17a69b3ed521407aa2d1e422b2b244
- MD5 848dff4e6b198f082fe076549297c206
- SHA1 a3a17b841fd83f6bc9bc31acf62bac2aa6f1c3d1
- SHA512 3e760e38fc5878c4bbd4ccd5e4b8ef8df891f3da9036e4a9fd0064d3bdc1d561e723c1eaf5d41271877f6730d716249de68982555c372399be02ac1d77a34d66
- SSDEEP 1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxY5jVBChFd7naVF5sQwyaq6ChFd7nat:fnyiQSox5K
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\7-Zip\7-zip.dll.tmp
- Size 199KB
- SHA256 ad447b5d1c05b7f1897c78e6a0cdff3fd22a24130eb0ab0d707200b6488b17d2
- MD5 b555d70c3fb19ceb5f0063b8f923e196
- SHA1 86451f2166c58832aa46bd43de15c98408ee6537
- SHA512 5a9e140613df1b813d20f54cb4f9a6123c2ab2e1e36a1782ad2fd9e347613445a3d315e7d0265747dfc105854f6e5582dfc1baf33108b3871309b7bc190b7b67
- SSDEEP 3072:fnyiQSox5QWHIjN3tj6qnv0b2UrXkbvLN:KiQSox5bIjNDv0bNXkbvLN
- MD5 SHA1 SHA512 SSDEEP