Windows Analysis Report
file.dll

Overview

General Information

Sample name: file.dll
(renamed file extension from exe to dll)
Original sample name: file.exe
Analysis ID: 1524233
MD5: 03c9351e4fabe66d22bf80454e010069
SHA1: 74552026cb09976c3b214623496001141b0a7146
SHA256: cb85217d6232dbd4a1a5667b195254438b68a99edca1fc531ea7f5544a722b3d
Tags: dllexesignedx64user-jstrosch
Infos:

Detection

Score: 2
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)
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)

Classification

Source: file.dll Static PE information: certificate valid
Source: file.dll Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
Source: Binary string: c:\jenkins\workspace\8-2-build-windows-x64-cygwin\jdk8u361\3183\build\windows-x64\jdk\objs\libresource\resource.pdb source: file.dll
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
Source: unknown DNS traffic detected: query: 18.31.95.13.in-addr.arpa replaycode: Name error (3)
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: 18.31.95.13.in-addr.arpa
Source: file.dll String found in binary or memory: http://cacerts.digicert.com/DigiCertAssuredIDRootCA.crt0E
Source: file.dll String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crt0
Source: file.dll String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedG4RSA4096SHA256TimeStampingCA.crt0
Source: file.dll String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedRootG4.crt0C
Source: file.dll String found in binary or memory: http://crl3.digicert.com/DigiCertAssuredIDRootCA.crl0
Source: file.dll String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crl0S
Source: file.dll String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedG4RSA4096SHA256TimeStampingCA.crl0
Source: file.dll String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedRootG4.crl0
Source: file.dll String found in binary or memory: http://crl4.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crl0
Source: file.dll String found in binary or memory: http://ocsp.digicert.com0
Source: file.dll String found in binary or memory: http://ocsp.digicert.com0A
Source: file.dll String found in binary or memory: http://ocsp.digicert.com0C
Source: file.dll String found in binary or memory: http://ocsp.digicert.com0X
Source: file.dll String found in binary or memory: http://www.digicert.com/CPS0
Sample file is different than original file name gathered from version info
Source: file.dll Binary or memory string: OriginalFilenameresource.dllN vs file.dll
Source: classification engine Classification label: clean2.winDLL@12/0@1/0
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3556:120:WilError_03
Source: file.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\loaddll64.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,JNI_OnLoad
Source: unknown Process created: C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\file.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\file.dll",#1
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,JNI_OnLoad
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\file.dll",#1
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_jdk_management_resource_internal_ResourceNatives_computeRetainedMemory0
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_jdk_management_resource_internal_ResourceNatives_createResourceContext0
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\file.dll",#1 Jump to behavior
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,JNI_OnLoad Jump to behavior
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_jdk_management_resource_internal_ResourceNatives_computeRetainedMemory0 Jump to behavior
Source: C:\Windows\System32\loaddll64.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\file.dll,Java_jdk_management_resource_internal_ResourceNatives_createResourceContext0 Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\file.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: jvm.dll Jump to behavior
Source: C:\Windows\System32\loaddll64.exe Section loaded: java.dll Jump to behavior
Source: C:\Windows\System32\loaddll64.exe Section loaded: vcruntime140.dll Jump to behavior
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: Window Recorder Window detected: More than 3 window changes detected
Source: file.dll Static PE information: certificate valid
Source: file.dll Static PE information: Image base 0x180000000 > 0x60000000
Source: file.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IMPORT
Source: file.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_RESOURCE
Source: file.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_BASERELOC
Source: file.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: file.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
Source: file.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IAT
Source: file.dll Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
Source: file.dll Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: Binary string: c:\jenkins\workspace\8-2-build-windows-x64-cygwin\jdk8u361\3183\build\windows-x64\jdk\objs\libresource\resource.pdb source: file.dll
Source: file.dll Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IMPORT is in: .rdata
Source: file.dll Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_RESOURCE is in: .rsrc
Source: file.dll Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_BASERELOC is in: .reloc
Source: file.dll Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG is in: .rdata
Source: file.dll Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IAT is in: .rdata
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\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\loaddll64.exe Process queried: DebugPort Jump to behavior
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\file.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: 1524233 Sample: file.exe Startdate: 02/10/2024 Architecture: WINDOWS Score: 2 19 18.31.95.13.in-addr.arpa 2->19 7 loaddll64.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
18.31.95.13.in-addr.arpa unknown unknown