Windows Analysis Report
weird.dll

Overview

General Information

Sample name: weird.dll
(renamed file extension from none to dll)
Original sample name: weird
Analysis ID: 1540387
MD5: 34a7856b9671389544a4a9c37a037250
SHA1: a6a04e0372c58624758fda199c3f1e8180048422
SHA256: e36a6367c6b8b7fa9f2f5b059c5df919d9ec2106e6ae5e8177bc2203e8553ef8
Infos:

Detection

Score: 23
Range: 0 - 100
Whitelisted: false
Confidence: 60%

Signatures

AI detected suspicious sample
Binary contains a suspicious time stamp
Creates a process in suspended mode (likely to inject code)
May sleep (evasive loops) to hinder dynamic analysis
PE file does not import any functions
Program does not show much activity (idle)
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info

Classification

AV Detection
barindex
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 97.1% probability
Source: weird.dll Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, TERMINAL_SERVER_AWARE
Source: Binary string: Microsoft.VisualStudio.TeamFoundation.InitializationPackage.ni.pdbRSDS source: weird.dll
Source: Binary string: Microsoft.VisualStudio.TeamFoundation.InitializationPackage.ni.pdb source: weird.dll
Source: Binary string: D:\a\_work\1\obj\Release.AnyCPU\VSIntegration.Client\MS.VS.TeamFoundation.InitializationPackage\net472\Microsoft.VisualStudio.TeamFoundation.InitializationPackage.pdb source: weird.dll
PE file does not import any functions
Source: weird.dll Static PE information: No import functions for PE file found
Sample file is different than original file name gathered from version info
Source: weird.dll Binary or memory string: OriginalFilenameMicrosoft.VisualStudio.TeamFoundation.InitializationPackageT vs weird.dll
Source: classification engine Classification label: sus23.winDLL@6/0@0/0
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6968:120:WilError_03
Source: weird.dll Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Windows\System32\loaddll64.exe Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\weird.dll",#1
Source: unknown Process created: C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\weird.dll"
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\weird.dll",#1
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\weird.dll",#1
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\weird.dll",#1 Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\weird.dll",#1 Jump to behavior
Source: C:\Windows\System32\loaddll64.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Windows\System32\loaddll64.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: weird.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: weird.dll Static PE information: Image base 0x644a0000000 > 0x60000000
Source: weird.dll Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, TERMINAL_SERVER_AWARE
Source: weird.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: Binary string: Microsoft.VisualStudio.TeamFoundation.InitializationPackage.ni.pdbRSDS source: weird.dll
Source: Binary string: Microsoft.VisualStudio.TeamFoundation.InitializationPackage.ni.pdb source: weird.dll
Source: Binary string: D:\a\_work\1\obj\Release.AnyCPU\VSIntegration.Client\MS.VS.TeamFoundation.InitializationPackage\net472\Microsoft.VisualStudio.TeamFoundation.InitializationPackage.pdb source: weird.dll
Binary contains a suspicious time stamp
Source: weird.dll Static PE information: 0x9AD6A36B [Fri Apr 26 15:23:23 2052 UTC]
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Windows\System32\loaddll64.exe TID: 6940 Thread sleep time: -120000s >= -30000s 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\loaddll64.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\System32\cmd.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\weird.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 signatures2 2 Behavior Graph ID: 1540387 Sample: weird Startdate: 23/10/2024 Architecture: WINDOWS Score: 23 15 AI detected suspicious sample 2->15 7 loaddll64.exe 1 2->7         started        process3 process4 9 cmd.exe 1 7->9         started        11 conhost.exe 7->11         started        process5 13 rundll32.exe 9->13         started       
⊘No contacted IP infos