Windows Analysis Report

Overview

General Information

Analysis ID: 1523772
Infos:

Detection

Score: 22
Range: 0 - 100
Whitelisted: false
Confidence: 80%

Signatures

Sigma detected: Dot net compiler compiles file from suspicious location
Compiles C# or VB.Net code
Creates a process in suspended mode (likely to inject code)
Program does not show much activity (idle)
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Dynamic .NET Compilation Via Csc.EXE

Classification

Source: classification engine Classification label: sus22.expl.win@4/0@0/0
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:7628:120:WilError_03
Source: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: unknown Process created: C:\Windows\SysWOW64\cmd.exe cmd /C ""C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\user1\AppData\Local\Temp\5adbfgrl.cmdline""
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\user1\AppData\Local\Temp\5adbfgrl.cmdline"
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\user1\AppData\Local\Temp\5adbfgrl.cmdline" Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe Section loaded: vcruntime140_clr0400.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe Section loaded: kernel.appcore.dll Jump to behavior
Compiles C# or VB.Net code
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\user1\AppData\Local\Temp\5adbfgrl.cmdline"
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\user1\AppData\Local\Temp\5adbfgrl.cmdline" Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Program does not show much activity (idle)
Source: all processes Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Program does not show much activity (idle)
Source: all processes Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Creates a process in suspended mode (likely to inject code)
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\user1\AppData\Local\Temp\5adbfgrl.cmdline" Jump to behavior
windows-stand
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1523772 Cookbook: defaultwindowscmdlinecookbook.jbs Startdate: 02/10/2024 Architecture: WINDOWS Score: 22 12 Sigma detected: Dot net compiler compiles file from suspicious location 2->12 6 cmd.exe 1 2->6         started        process3 process4 8 conhost.exe 6->8         started        10 csc.exe 1 6->10         started       
⊘No contacted IP infos