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Windows Analysis Report NTS_eTaxInvoice 1-12-2021#U00b7pdf.exe
Overview
General Information
Detection
GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Multi AV Scanner detection for submitted file
Antivirus detection for URL or domain
GuLoader behavior detected
Multi AV Scanner detection for domain / URL
Yara detected GuLoader
Hides threads from debuggers
Tries to steal Mail credentials (via file / registry access)
Initial sample is a PE file and has a suspicious name
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to detect Any.run
Tries to harvest and steal ftp login credentials
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for dropped file
Executable has a suspicious name (potential lure to open the executable)
C2 URLs / IPs found in malware configuration
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
May sleep (evasive loops) to hinder dynamic analysis
Contains functionality to shutdown / reboot the system
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
JA3 SSL client fingerprint seen in connection with other malware
Contains functionality to call native functions
IP address seen in connection with other malware
Abnormal high CPU Usage
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Sample file is different than original file name gathered from version info
PE file contains strange resources
Drops PE files
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality for read data from the clipboard
Classification
Process Tree |
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Malware Configuration |
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Threatname: GuLoader |
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{"Payload URL": "https://drive.google.com/uc?export=downlf"}
Yara Overview |
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Memory Dumps |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_GuLoader_2 | Yara detected GuLoader | Joe Security | ||
JoeSecurity_GuLoader_2 | Yara detected GuLoader | Joe Security |
Sigma Overview |
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No Sigma rule has matched |
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Jbx Signature Overview |
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Click to jump to signature section
Show All Signature Results
AV Detection: |
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Found malware configuration | Show sources |
Source: | Malware Configuration Extractor: |
Multi AV Scanner detection for submitted file | Show sources |
Source: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
Antivirus detection for URL or domain | Show sources |
Source: | Avira URL Cloud: |
Multi AV Scanner detection for domain / URL | Show sources |
Source: | Virustotal: | Perma Link |
Machine Learning detection for dropped file | Show sources |
Source: | Joe Sandbox ML: |
Source: | Static PE information: |
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: |
Source: | Static PE information: |
Source: | Code function: | 0_2_00406873 | |
Source: | Code function: | 0_2_00405C49 | |
Source: | Code function: | 0_2_0040290B |
Networking: |
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Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) | Show sources |
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: | ||
Source: | Snort IDS: |
C2 URLs / IPs found in malware configuration | Show sources |
Source: | URLs: |
Source: | ASN Name: |
Source: | JA3 fingerprint: |
Source: | IP Address: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |
Source: | Network traffic detected: | ||
Source: | Network traffic detected: | ||
Source: | Network traffic detected: | ||
Source: | Network traffic detected: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: |
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: |
Source: | HTTP traffic detected: |
Source: | DNS traffic detected: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: |
Source: | Binary or memory string: |
Source: | Code function: | 0_2_004056DE |
System Summary: |
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Initial sample is a PE file and has a suspicious name | Show sources |
Source: | Static PE information: |
Executable has a suspicious name (potential lure to open the executable) | Show sources |
Source: | Static file information: |
Source: | Static PE information: |
Source: | Code function: | 0_2_0040352D |
Source: | Code function: | 0_2_0040755C | |
Source: | Code function: | 0_2_00406D85 | |
Source: | Code function: | 1_2_081696A0 | |
Source: | Code function: | 1_2_081677A9 | |
Source: | Code function: | 1_2_081692DD | |
Source: | Code function: | 1_2_0816EFE3 | |
Source: | Code function: | 1_2_08169B35 | |
Source: | Code function: | 1_2_0816DC4B | |
Source: | Code function: | 1_2_0816D16C | |
Source: | Code function: | 1_2_0816D9B3 |
Source: | Code function: | 1_2_0816EA76 | |
Source: | Code function: | 1_2_081696A0 | |
Source: | Code function: | 1_2_081677A9 | |
Source: | Code function: | 1_2_0816EFE3 | |
Source: | Code function: | 9_2_0056FE51 | |
Source: | Code function: | 9_2_0056FC9B | |
Source: | Code function: | 9_2_0056FCD3 | |
Source: | Code function: | 9_2_0056FEC7 | |
Source: | Code function: | 9_2_0056FDF3 | |
Source: | Code function: | 9_2_0056FD7B | |
Source: | Code function: | 9_2_0056FEE2 | |
Source: | Code function: | 9_2_0056FC96 | |
Source: | Code function: | 9_2_0056FD97 | |
Source: | Code function: | 9_2_0056FD15 | |
Source: | Code function: | 9_2_0056FF91 | |
Source: | Code function: | 9_2_0056FF9D | |
Source: | Code function: | 9_2_0056FDB9 | |
Source: | Code function: | 9_2_0056FD23 |
Source: | Process Stats: |
Source: | Binary or memory string: |