Analysis
- max time kernel
150s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
23/10/2024, 00:31
Behavioral task
behavioral1
Sample
835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe
Resource
win7-20240903-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
4 signatures
150 seconds
General
- Target 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe
- Size 102KB
- Sample241023-at174sterp
- SHA256 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4
- MD5 2c31f3aad5d32b6e33c690916ab9afd0
- SHA1 6f74a694c3aa950e6f552166fa79cd07afbf5ce5
- SHA512 971f9ac8ae500dce074ebf9e6b8f5b7d37bb94ebd88cfd552cb510770a0939c1795da9bb9b1e4ab3193e6ac8f249bf9a36b8597e20b15318a1871692ebe43a27
- SSDEEP 1536:a7ZyqaFAxTWH1++PJHJXA/OsIZfzc3/Q8zxY51lnls:enaypQSox51FO
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Renames multiple (4714) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
resource yara_rule behavioral2/memory/4152-0-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/files/0x000c000000023b20-2.dat upx behavioral2/files/0x0014000000022912-6.dat upx behavioral2/memory/4152-652-0x0000000000400000-0x000000000040B000-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.Private.Xml.Linq.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Input.Manipulations.resources.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-white_scale-180.png.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Common Files\microsoft shared\ink\it-IT\InkObj.dll.mui.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-pl.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-phn.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_WHATSNEW.XML.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-140.png.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-US\InkObj.dll.mui.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\WindowsBase.resources.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\management\management.properties.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Trial-ppd.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-pl.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\7-Zip\Lang\sv.txt.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.resources.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Office16\msvcp120.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Extensions.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.AccessControl.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.X509Certificates.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\PresentationCore.resources.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\Microsoft.VisualBasic.Forms.resources.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-black_scale-100.png.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.Concurrent.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.CodeDom.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Internet Explorer\ja-JP\iexplore.exe.mui.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jre-1.8\bin\zip.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jre-1.8\lib\cmm\CIEXYZ.pf.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-heap-l1-1-0.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Resources.Reader.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-util-l1-1-0.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jre-1.8\bin\ssvagent.exe.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jre-1.8\lib\fontconfig.properties.src.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Client\concrt140.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_KMS_Client-ul.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial-ul-oob.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-pl.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-ul-phn.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogo.scale-140.png.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\msix.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\fa.pak.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Common Files\microsoft shared\ink\de-DE\tipresx.dll.mui.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad.xml.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.Dataflow.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\ReachFramework.resources.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Presentation.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\ext\localedata.jar.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00C1-0000-1000-0000000FF1CE.xml.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\oskclearuibase.xml.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.FileSystem.Primitives.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-math-l1-1-0.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_OEM_Perp-ul-phn.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jre-1.8\bin\JavaAccessBridge-64.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ppd.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\RepoMan.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemXmlLinq.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_LinkDrop32x32.gif.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jre-1.8\legal\jdk\jopt-simple.md.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_KMS_Client_AE-ul.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTest-ppd.xrm-ms.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Xaml.resources.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Java\jre-1.8\bin\wsdetect.dll.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe File created C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Green.xml.tmp 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.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 835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe"C:\Users\Admin\AppData\Local\Temp\835a558aa56d87ef242c67e8e52ae44f56f4b50193af08d839437feb44137df4N.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4152
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-2437139445-1151884604-3026847218-1000\desktop.ini.tmp
- Size 103KB
- SHA256 bceca1c113b351ba0b43e346974ce5e72479c64b456c1d599d911f2588a89b50
- MD5 4769bc395b9d12cd4755babba6dc4ce2
- SHA1 bbdcfd4242bbf81f9e7078057df2b042b4c7698b
- SHA512 07895db60626cb549e243695f9b067e38c420313a013a66b444ef7165e83cd08d62c5443dfe476e051429a5fb06bcd76ceb4d1e0c27139fa3944633de0fc03f3
- SSDEEP 1536:a7ZyqaFAxTWH1++PJHJXA/OsIZfzc3/Q8zxY51lnlY:enaypQSox51FS
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\7-Zip\7-zip.dll.tmp
- Size 202KB
- SHA256 4c993622fe36dd8732f156e28ad7c7d4eaf2cac46fba815c65ca6f4641c54a06
- MD5 6c9d49225cb13c55ab11cdfb0070c881
- SHA1 3a26ae1c0f653efbff30fc248c914f6cbe5c1f02
- SHA512 c04add9c474401461882958e317192423c76ea745639d15100a099e866fc8b3f9ce49b871a2797ca4f76364342bd0969e4660eb609ddaf9c4d5086510594470f
- SSDEEP 3072:enaypQSox51FSWHIjN3tj6qnv0b2UrXkbvL6:wHpQSox51F1IjNDv0bNXkbvL6
- MD5 SHA1 SHA512 SSDEEP