Windows Analysis Report
1f0000.dll

Overview

General Information

Sample Name: 1f0000.dll
Analysis ID: 725157
MD5: fb46a45c032fb8b5798f00878af54464
SHA1: e8e054a8c8aa27120909bb89725b36f5a7136d98
SHA256: 576413cc88f47adde6685639f88d17d495fff4475c89603fe83078f81ee20846
Tags: dllgozi
Infos:

Detection

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

Signatures

Antivirus / Scanner detection for submitted sample
Yara detected Ursnif
Machine Learning detection for sample
Sample execution stops while process was sleeping (likely an evasion)
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
barindex
Antivirus / Scanner detection for submitted sample
Source: 1f0000.dll Avira: detected
Machine Learning detection for sample
Source: 1f0000.dll Joe Sandbox ML: detected
Source: 1f0000.dll Malware Configuration Extractor: Ursnif {"RSA Public Key": "GM4Kf/Z6rOnx7ZeOHNCGqGU1EYR+rHVcPFJfnB66sRxq8TdAtJ8I/FA73jILYN/O7GBQZXfAayteZ+p+Oku4j4TsVhRTMO69ts5LXnUBL3YpRQLuom+BvNzXjhoKt16kcxpwisrVl8sSl78o2iV+WuT7m9YMZQozEdttRTBIHJpzQtPr0h5BHHk+OiA9EQSDmlX7UvBgY8bViZ8LVgRE2j8GEgfNQW2WNlu1n810ZdnxshlFew+L2+9Be0oR+u+GXheI+qCLyYBkG5dNS0/RoFfmz5khmlLokQND0e2gq8+13HHHxrou4IGiYjMoDNLBLxynxiy1GeKRmyNpR0hR7RNZZpmu8ADCXrY93ygL4yQ=", "c2_domain": ["trackingg-protectioon.cdn1.mozilla.net", "siwdmfkshsgw.com", "trackingg-protectioon.cdn1.mozilla.net", "188.127.224.114", "weiqeqwns.com", "weiqeqwens.com", "weiqewqwns.com", "iujdhsndjfks.com", "ijduwhsbvk.com"], "botnet": "10103", "server": "50", "serpent_key": "9wGFk6w5pVKRz0Hz", "sleep_time": "1", "CONF_TIMEOUT": "20", "SetWaitableTimer_value": "0"}
Uses 32bit PE files
Source: 1f0000.dll Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE, DLL

Key, Mouse, Clipboard, Microphone and Screen Capturing
barindex
Yara detected Ursnif
Source: Yara match File source: 1f0000.dll, type: SAMPLE

E-Banking Fraud
barindex
Yara detected Ursnif
Source: Yara match File source: 1f0000.dll, type: SAMPLE
Uses 32bit PE files
Source: 1f0000.dll Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE, DLL
PE file does not import any functions
Source: 1f0000.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: 1f0000.dll Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, 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: mal60.troj.winDLL@6/0@0/0
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\1f0000.dll",#1
Source: unknown Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\1f0000.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\1f0000.dll",#1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\1f0000.dll",#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\1f0000.dll",#1 Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\1f0000.dll",#1 Jump to behavior
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:2064:120:WilError_01

Hooking and other Techniques for Hiding and Protection
barindex
Yara detected Ursnif
Source: Yara match File source: 1f0000.dll, type: SAMPLE
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
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
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
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\1f0000.dll",#1 Jump to behavior

Stealing of Sensitive Information
barindex
Yara detected Ursnif
Source: Yara match File source: 1f0000.dll, type: SAMPLE

Remote Access Functionality
barindex
Yara detected Ursnif
Source: Yara match File source: 1f0000.dll, type: SAMPLE
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: 725157 Sample: 1f0000.dll Startdate: 18/10/2022 Architecture: WINDOWS Score: 60 15 Antivirus / Scanner detection for submitted sample 2->15 17 Yara detected  Ursnif 2->17 19 Machine Learning detection for sample 2->19 7 loaddll32.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