Windows Analysis Report 870000.dll

Overview

General Information

Sample Name: 870000.dll
Analysis ID: 500332
MD5: 8575bba1d976096af4d2ff153075eeeb
SHA1: 0457b5be90bc81afa6fdf69dafc1914ece904e6f
SHA256: b4e9cf6ef8e62e042d2c7b090d987ae16017c927766e7f1de7b936e0eded1652
Tags: dllgozi
Infos:

Most interesting Screenshot:

Detection

Ursnif
Score: 72
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected Ursnif
Uses 32bit PE files
PE file does not import any functions
Tries to load missing DLLs
Program does not show much activity (idle)
Creates a process in suspended mode (likely to inject code)
Checks if the current process is being debugged

Classification

AV Detection:

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Antivirus / Scanner detection for submitted sample
Source: 870000.dll Avira: detected
Found malware configuration
Source: 870000.dll Malware Configuration Extractor: Ursnif {"RSA Public Key": "cgKNT5f98bcVt4Ua6/spDh3agMYKS9U5XCEAUwqrd6WorohXmUWLK3DTr9KcxGc7XzO+BJHSpcUazVaBbWXWQQrq1DRAPoIVLucrptquDhSQNq7SpoJGVw8bSgl3X1tYlNhzq/3sAsc0T/eM1uD7kTJ+/VUmeTv84go7QrHmegQE7NNfyRvMbqeUIBu7C6gy", "c2_domain": ["1.microsoft.com", "horulenuke.us", "vorulenuke.us"], "botnet": "4460", "server": "12", "serpent_key": "10291029JSJUYNHG", "sleep_time": "10", "CONF_TIMEOUT": "20", "SetWaitableTimer_value": "0", "dga_base_url": "constitution.org/usdeclar.txt", "dga_tld": "com ru org", "DGA_count": "10"}
Multi AV Scanner detection for submitted file
Source: 870000.dll ReversingLabs: Detection: 53%

Compliance:

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Uses 32bit PE files
Source: 870000.dll Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE, DLL

Key, Mouse, Clipboard, Microphone and Screen Capturing:

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Yara detected Ursnif
Source: Yara match File source: 870000.dll, type: SAMPLE

E-Banking Fraud:

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Yara detected Ursnif
Source: Yara match File source: 870000.dll, type: SAMPLE

System Summary:

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Uses 32bit PE files
Source: 870000.dll Static PE information: 32BIT_MACHINE, EXECUTABLE_IMAGE, DLL
PE file does not import any functions
Source: 870000.dll Static PE information: No import functions for PE file found
Tries to load missing DLLs
Source: C:\Windows\System32\loaddll32.exe Section loaded: .dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: .dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: .dll Jump to behavior
Source: 870000.dll ReversingLabs: Detection: 53%
Source: 870000.dll Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Windows\System32\loaddll32.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: classification engine Classification label: mal72.troj.winDLL@5/0@0/0
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\870000.dll',#1
Source: unknown Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe 'C:\Users\user\Desktop\870000.dll'
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\870000.dll',#1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\870000.dll',#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\870000.dll',#1 Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\870000.dll',#1 Jump to behavior

Hooking and other Techniques for Hiding and Protection:

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Yara detected Ursnif
Source: Yara match File source: 870000.dll, type: SAMPLE
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

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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

Anti Debugging:

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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
Checks if the current process is being debugged
Source: C:\Windows\System32\loaddll32.exe Process queried: DebugPort Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

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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\870000.dll',#1 Jump to behavior

Stealing of Sensitive Information:

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Yara detected Ursnif
Source: Yara match File source: 870000.dll, type: SAMPLE

Remote Access Functionality:

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Yara detected Ursnif
Source: Yara match File source: 870000.dll, type: SAMPLE
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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
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  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 500332 Sample: 870000.dll Startdate: 11/10/2021 Architecture: WINDOWS Score: 72 13 Found malware configuration 2->13 15 Antivirus / Scanner detection for submitted sample 2->15 17 Multi AV Scanner detection for submitted file 2->17 19 Yara detected  Ursnif 2->19 7 loaddll32.exe 1 2->7         started        process3 process4 9 cmd.exe 1 7->9         started        process5 11 rundll32.exe 9->11         started       
No contacted IP infos