Analysis
- max time kernel
120s - max time network
95s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
12/11/2024, 04:06
Behavioral task
behavioral1
Sample
acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe
Resource
win7-20241010-en
windows7-x64
4 signatures
120 seconds
Behavioral task
behavioral2
Sample
acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
4 signatures
120 seconds
General
- Target acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe
- Size 89KB
- Sample241112-epfg3avcmn
- SHA256 e79a1c9027920d63462037617adc802e3e43d37d34a160330ffd3ea1c639469b
- MD5 16d9ce40d4a232f8ed26b6f216c2c16a
- SHA1 22e930efb8f7263a16995ef3d1b77bca16bac4d2
- SHA512 4c981f31978ed47627e1901330b658c151667d9992583ae37e6febd724366e0a7ce10b24eafb38daaced863d80e0e4d2aec95797e2d7a201527ca021e3cd5782
- SSDEEP 768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9ZJ3R9M4E2lGZD4TzvPYNWw1Asvvzzv6t0+3a:CTW7JJ7TzJLM3+I8K/XCKCGSqzVL
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Renames multiple (3605) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
resource yara_rule behavioral2/memory/2064-0-0x0000000000400000-0x000000000040A000-memory.dmp upx behavioral2/files/0x000a000000023c58-2.dat upx behavioral2/files/0x000600000001e5c2-6.dat upx behavioral2/memory/2064-641-0x0000000000400000-0x000000000040A000-memory.dmp upx - Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clretwrc.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationProvider.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\hprof.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\jli.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\microsoft shared\ink\ipsfin.xml.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\fr-FR\msinfo32.exe.mui.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l1-2-0.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Loader.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ul-oob.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwrcommonlm.dat.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\WindowsBase.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\System\Ole DB\msxactps.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Contracts.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\WindowsFormsIntegration.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-synch-l1-2-0.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Drawing.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription5-ul-oob.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp3-ul-phn.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\7-Zip\Lang\zh-tw.txt.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.FileSystem.DriveInfo.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\PresentationCore.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\PresentationFramework.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\jaas_nt.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription3-pl.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\UIAutomationTypes.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jdk-1.8\jre\legal\jdk\icu.md.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jre-1.8\bin\jp2iexp.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jre-1.8\bin\msvcp140_2.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\microsoft shared\ink\TabTip.exe.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jre-1.8\bin\vcruntime140.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.AppContext.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.NonGeneric.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ta.pak.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\System\msadc\it-IT\msadcer.dll.mui.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Timer.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-ul-oob.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.TypeConverter.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.CoreLib.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encoding.Extensions.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\WindowsBase.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\SmallLogoDev.png.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jre-1.8\bin\dt_socket.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.Immutable.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\System.Xaml.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\dtplugin\deployJava1.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Contracts.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-private-l1-1-0.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-ul-oob.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ul-phn.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\microsoft shared\ink\Alphabet.xml.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationTypes.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\fi.pak.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\en-US\msinfo32.exe.mui.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Configuration.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Java\jre-1.8\lib\security\policy\limited\US_export_policy.jar.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-ul-phn.xrm-ms.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwrdeulm.dat.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\LICENSE.txt.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\7-Zip\Lang\sr-spc.txt.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Xaml.resources.dll.tmp acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.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 acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe"C:\Users\Admin\AppData\Local\Temp\acb7638a3ca8f6055df91fbb15a4de234773961c641c0d5ed015053090480f48N.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2064
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-4050598569-1597076380-177084960-1000\desktop.ini.tmp
- Size 89KB
- SHA256 5bfdc331408d2926d6ac686f53f8645b61a52988eaef43724248567102ce1602
- MD5 6102729f0ed5ee25a621a0c4eebea485
- SHA1 6747995fdcca6b238ba6d1bbd57405b0be0bf89e
- SHA512 856bf0d0639f7adbfaa73884e97c2104bbad4aad6b0237a0b58ecb38d7a56efb84e959e28c9f700a7b0a7df6355d49cc5adc41f86b5eaee2645b85b43ec96d5d
- SSDEEP 768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9ZJ3R9M4E2lGZD4TzvPYNWw1Asvvzzv6t0+3H:CTW7JJ7TzJLM3+I8K/XCKCGSqzV6
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\7-Zip\7-zip.dll.tmp
- Size 188KB
- SHA256 a82a8b75200b161a95d148c85973d66c1ee99d7f520cce166f698747355f3f6f
- MD5 66d570aa9fcb02f9c5d13f387dac4970
- SHA1 66f8f6d0846e017b81c3da0f76b16b1346fbf9ff
- SHA512 af9e9efcc2a66840b2c197e8f1a2d34e9628ac04e3a1331a104a7f980663251d76a07470e79302388e19e0050c9f3b57bc4f724251c54a2ebab0b15e21898ae7
- SSDEEP 3072:hlM3+ufC586WHIjN3tj6qnv0b2UrXkbvLe:vMpfCUIjNDv0bNXkbvLe
- MD5 SHA1 SHA512 SSDEEP