Windows Analysis Report
1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll

Overview

General Information

Sample name: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll
Analysis ID: 1532610
MD5: f36511ec69f2eae127424515909f58dc
SHA1: 2b8244d8b0af15062fe4eeb951d6999c005d7d5d
SHA256: fb359e0260f5b7ab2d73189af78701b37f359a43a1b49719adc5a78987af4043
Tags: base64-decodeddlluser-abuse_ch
Infos:

Detection

Score: 68
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Multi AV Scanner detection for submitted file
Sigma detected: Execute DLL with spoofed extension
.NET source code contains potential unpacker
AI detected suspicious sample
Machine Learning detection for sample
Creates a process in suspended mode (likely to inject code)
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
Multi AV Scanner detection for submitted file
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll ReversingLabs: Detection: 13%
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Virustotal: Detection: 28% Perma Link
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 89.8% probability
Machine Learning detection for sample
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Joe Sandbox ML: detected
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: time.windows.com
Sample file is different than original file name gathered from version info
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Binary or memory string: OriginalFilenameTehulchesXxXxx.dll< vs 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll
Source: classification engine Classification label: mal68.evad.winDLL@6/0@1/0
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:7604:120:WilError_03
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Static file information: TRID: Win32 Dynamic Link Library (generic) Net Framework (1011504/3) 50.14%
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\1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll",#1
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll ReversingLabs: Detection: 13%
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Virustotal: Detection: 28%
Source: unknown Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.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\1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll",#1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll",#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll",#1 Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.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: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation
barindex
.NET source code contains potential unpacker
Source: 1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll, Class1.cs .Net Code: MsqBIbY System.AppDomain.Load(byte[])
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
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
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\1728837010f8dbc27ab56e33ce777df8975cafb75f4fb4ee8083e6485fe669922eb6a54392628.dat-decoded.dll",#1 Jump to behavior
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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 dnsIp2 2 Behavior Graph ID: 1532610 Sample: 1728837010f8dbc27ab56e33ce7... Startdate: 13/10/2024 Architecture: WINDOWS Score: 68 16 time.windows.com 2->16 18 shed.dual-low.s-part-0023.t-0009.t-msedge.net 2->18 20 s-part-0023.t-0009.t-msedge.net 2->20 22 Multi AV Scanner detection for submitted file 2->22 24 Sigma detected: Execute DLL with spoofed extension 2->24 26 .NET source code contains potential unpacker 2->26 28 2 other signatures 2->28 8 loaddll32.exe 1 2->8         started        signatures3 process4 process5 10 cmd.exe 1 8->10         started        12 conhost.exe 8->12         started        process6 14 rundll32.exe 10->14         started       
⊘No contacted IP infos

Contacted Domains

Name IP Active
s-part-0023.t-0009.t-msedge.net 13.107.246.51 true
time.windows.com unknown unknown