Windows Analysis Report
Ua58ViPBl3.dll

Overview

General Information

Sample name: Ua58ViPBl3.dll
(renamed file extension from none to dll, renamed because original name is a hash value)
Original sample name: F9DBFCD2DC16A7BCC5EB463F14348EB7441B3E23326CC1DD9AAD702A85FD5588
Analysis ID: 1524301
MD5: de0f1964d8da47bbfc8263a02219bc1e
SHA1: 06e54b1491915badf093a57e7e43a9a4afa93b1f
SHA256: f9dbfcd2dc16a7bcc5eb463f14348eb7441b3e23326cc1dd9aad702a85fd5588
Infos:

Detection

Score: 3
Range: 0 - 100
Whitelisted: false
Confidence: 60%

Signatures

Checks if the current process is being debugged
Creates a process in suspended mode (likely to inject code)
PE file contains sections with non-standard names
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
Uses 32bit PE files

Classification

Uses 32bit PE files
Source: Ua58ViPBl3.dll Static PE information: EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, BYTES_REVERSED_LO, 32BIT_MACHINE, DLL, BYTES_REVERSED_HI
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
Source: unknown DNS traffic detected: query: 197.87.175.4.in-addr.arpa replaycode: Name error (3)
Source: unknown DNS traffic detected: query: 198.187.3.20.in-addr.arpa replaycode: Name error (3)
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: 198.187.3.20.in-addr.arpa
Source: global traffic DNS traffic detected: DNS query: 197.87.175.4.in-addr.arpa
Sample file is different than original file name gathered from version info
Source: Ua58ViPBl3.dll Binary or memory string: viOriginalFilename vs Ua58ViPBl3.dll
Source: Ua58ViPBl3.dll Binary or memory string: OriginalFilename vs Ua58ViPBl3.dll
Uses 32bit PE files
Source: Ua58ViPBl3.dll Static PE information: EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, BYTES_REVERSED_LO, 32BIT_MACHINE, DLL, BYTES_REVERSED_HI
Source: classification engine Classification label: clean3.winDLL@12/0@2/0
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6500:120:WilError_03
Source: C:\Windows\System32\loaddll32.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\Ua58ViPBl3.dll,CheckPwd
Source: unknown Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\Ua58ViPBl3.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\Ua58ViPBl3.dll",#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\Ua58ViPBl3.dll,CheckPwd
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Ua58ViPBl3.dll",#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\Ua58ViPBl3.dll,GetKey
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\Ua58ViPBl3.dll,GetPwd
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\Ua58ViPBl3.dll",#1 Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\Ua58ViPBl3.dll,CheckPwd Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\Ua58ViPBl3.dll,GetKey Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\Ua58ViPBl3.dll,GetPwd Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\Ua58ViPBl3.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: borlndmm.dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: version.dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: netapi32.dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: shfolder.dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: wsock32.dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe Automated click: OK
Source: Window Recorder Window detected: More than 3 window changes detected
Source: Ua58ViPBl3.dll Static PE information: Virtual size of .text is bigger than: 0x100000
Source: Ua58ViPBl3.dll Static file information: File size 2788352 > 1048576
Source: Ua58ViPBl3.dll Static PE information: Raw size of .text is bigger than: 0x100000 < 0x24ae00
PE file contains sections with non-standard names
Source: Ua58ViPBl3.dll Static PE information: section name: .didata
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
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
Checks if the current process is being debugged
Source: C:\Windows\System32\loaddll32.exe Process queried: DebugPort 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\Ua58ViPBl3.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 dnsIp2 2 Behavior Graph ID: 1524301 Sample: Ua58ViPBl3 Startdate: 02/10/2024 Architecture: WINDOWS Score: 3 19 198.187.3.20.in-addr.arpa 2->19 21 197.87.175.4.in-addr.arpa 2->21 7 loaddll32.exe 1 2->7         started        process3 process4 9 cmd.exe 1 7->9         started        11 conhost.exe 7->11         started        13 rundll32.exe 7->13         started        15 2 other processes 7->15 process5 17 rundll32.exe 9->17         started       
⊘No contacted IP infos

Contacted Domains

Name IP Active
198.187.3.20.in-addr.arpa unknown unknown
197.87.175.4.in-addr.arpa unknown unknown