Windows Analysis Report
BouncyCastle.Crypto.dll

Overview

General Information

Sample name: BouncyCastle.Crypto.dll
Analysis ID: 1501908
MD5: 3cf6bf0e0a27f3665edd6362d137e4cc
SHA1: 2016dd5e17331495901299eae9a5db48ccc8956f
SHA256: 1985b85bb44be6c6eaf35e02ef11e23a890e809b8ec2e53210a4ad5a85b26c70
Infos:

Detection

Score: 0
Range: 0 - 100
Whitelisted: true
Confidence: 100%

Signatures

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)
Uses 32bit PE files

Classification

Uses 32bit PE files
Source: BouncyCastle.Crypto.dll Static PE information: EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, DLL
Uses 32bit PE files
Source: BouncyCastle.Crypto.dll Static PE information: EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, DLL
Source: classification engine Classification label: clean2.winDLL@6/0@0/0
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:7076:120:WilError_03
Source: BouncyCastle.Crypto.dll Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: BouncyCastle.Crypto.dll Static file information: TRID: Win32 Dynamic Link Library (generic) Net Framework (1011504/3) 44.54%
Source: C:\Windows\System32\loaddll32.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\BouncyCastle.Crypto.dll",#1
Source: unknown Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\BouncyCastle.Crypto.dll"
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\BouncyCastle.Crypto.dll",#1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\BouncyCastle.Crypto.dll",#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\BouncyCastle.Crypto.dll",#1 Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\BouncyCastle.Crypto.dll",#1 Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Section loaded: apphelp.dll Jump to behavior
Source: BouncyCastle.Crypto.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: BouncyCastle.Crypto.dll Static PE information: Virtual size of .text is bigger than: 0x100000
Source: BouncyCastle.Crypto.dll Static file information: File size 2236416 > 1048576
Source: BouncyCastle.Crypto.dll Static PE information: Raw size of .text is bigger than: 0x100000 < 0x21f000
Source: C:\Windows\SysWOW64\rundll32.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
Source: C:\Windows\System32\loaddll32.exe Thread delayed: delay time: 120000 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
Creates a process in suspended mode (likely to inject code)
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\BouncyCastle.Crypto.dll",#1 Jump to behavior
windows-stand
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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 process2 2 Behavior Graph ID: 1501908 Sample: BouncyCastle.Crypto.dll Startdate: 30/08/2024 Architecture: WINDOWS Score: 0 6 loaddll32.exe 1 2->6         started        process3 8 cmd.exe 1 6->8         started        10 conhost.exe 6->10         started        process4 12 rundll32.exe 8->12         started       
⊘No contacted IP infos