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Analysis
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max time kernel
120s -
max time network
116s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
27/07/2024, 06:58
Behavioral task
behavioral1
Sample
a4b9617e383d9b2b2bd0fd1da22cb230N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
a4b9617e383d9b2b2bd0fd1da22cb230N.exe
Resource
win10v2004-20240709-en
General
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Target
a4b9617e383d9b2b2bd0fd1da22cb230N.exe
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Size
53KB
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MD5
a4b9617e383d9b2b2bd0fd1da22cb230
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SHA1
4ebd4b15bbb364e14eef6d65964684b95269f9f4
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SHA256
84b5234c1a2461c58892d5d52c377913cdf62afcf31f2c1be8c1459faab1308b
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SHA512
85d98724bd34b8a3d8d0b89b17a4c9da02760bdb744360bdc3f9212082b1e8bb10741362c1b9ffcaeb5bab719326d97a7066de76121102549bf573a816aff22b
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SSDEEP
768:V7Blpf/FAK65euBT37CPKKQSjyJJcbQbf1Oti1JGBQOOiQJhATNyHF/MF/HggD5j:V7Zf/FAxTWoJJZENTNyl2aPK
Malware Config
Signatures
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Renames multiple (1791) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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resource yara_rule behavioral2/memory/1892-0-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/files/0x00090000000233d7-2.dat upx behavioral2/files/0x0014000000022909-6.dat upx behavioral2/memory/1892-1218-0x0000000000400000-0x000000000040B000-memory.dmp upx -
Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.AccessControl.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\WindowsBase.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationTypes.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Windows.Forms.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ServiceModel.Web.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Timer.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Controls.Ribbon.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Serialization.Formatters.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Input.Manipulations.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\UIAutomationProvider.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-stdio-l1-1-0.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.DiagnosticSource.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.Design.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.Primitives.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clretwrc.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.AeroLite.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\UIAutomationTypes.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-environment-l1-1-0.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\microsoft shared\ink\tpcps.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.MemoryMappedFiles.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.106\dxil.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.106\libGLESv2.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.DirectoryServices.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\StreamServer.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.Immutable.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationCore.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemXmlLinq.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Forms.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InkObj.dll.mui.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.InteropServices.RuntimeInformation.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.Win32.Registry.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\System.Windows.Forms.Primitives.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols.xml.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\System\es-ES\wab32res.dll.mui.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encodings.Web.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationUI.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\Microsoft.VisualBasic.Forms.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Contracts.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Resources.Extensions.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Input.Manipulations.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationUI.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Xaml.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.106\eventlog_provider.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.de-de.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationFramework.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationClientSideProviders.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\7-Zip\Lang\lv.txt.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.HttpListener.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Forms.Design.resources.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\7-Zip\Lang\sr-spl.txt.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.Parallel.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clrjit.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Compression.FileSystem.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Principal.Windows.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\Common Files\System\msadc\fr-FR\msadcer.dll.mui.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\ConvertToBlock.cab.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.dll.tmp a4b9617e383d9b2b2bd0fd1da22cb230N.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 a4b9617e383d9b2b2bd0fd1da22cb230N.exe
Processes
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
53KB
MD5b8138675dbc0d01aea9c1324fad8b4fd
SHA173b32f9388f1224faca11cafcece48de40e41966
SHA25694bed6d7209d01b7798b30c0aee43b2889df1b879c3030cdf6f9c04a33b54195
SHA5128ada760c0709531def15f23d86d5fb92068671d05de3c79857c3470a1a2bccf4bde1b98b1a7fa377663efacf52badbc73e22c00bc6cadf9382bc4e1cf1fa3365
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Filesize
152KB
MD5128ff03a6f2db712149878d5fa9905ed
SHA13b7b5cf72a6d54ed37967d00cf9aeac5d339cea4
SHA2561e535ef2dd92aede4041487a5da5ba4e40fa3e099e3748078f9db3b6aa95c960
SHA512752f5b041c434131ea6dd7748121380d22267af9d131c1e60a00cfd4dc0493486475a0366ececd1c28408670c06539a723ed5cbc8dcfffbb8ae1145441dd8a7b