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Windows Analysis Report DB_aabbbkdjdhgdghjdkjdggdghh0x06E5.xlsx
Overview
General Information
Detection
GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Multi AV Scanner detection for submitted file
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Yara detected GuLoader
C2 URLs / IPs found in malware configuration
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Drops PE files to the user root directory
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: Execution from Suspicious Folder
Tries to detect virtualization through RDTSC time measurements
Abnormal high CPU Usage
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to call native functions
Contains functionality to read the PEB
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Downloads executable code via HTTP
Drops PE files
Drops PE files to the user directory
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Office Equation Editor has been started
PE file contains strange resources
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Classification
Process Tree |
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Malware Configuration |
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Threatname: GuLoader |
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{"Payload URL": "https://kinmirai.org/wp-content/bin_NIapfDNXM183.bin"}
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 |
Sigma Overview |
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Exploits: |
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Sigma detected: EQNEDT32.EXE connecting to internet | Show sources |
Source: | Author: Joe Security: |
Sigma detected: File Dropped By EQNEDT32EXE | Show sources |
Source: | Author: Joe Security: |
System Summary: |
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Sigma detected: Droppers Exploiting CVE-2017-11882 | Show sources |
Source: | Author: Florian Roth: |
Sigma detected: Execution from Suspicious Folder | Show sources |
Source: | Author: Florian Roth: |
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: | ReversingLabs: |
Exploits: |
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Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) | Show sources |
Source: | Process created: | |||
Source: | Process created: | Jump to behavior |
Source: | Process created: |
Source: | File opened: | Jump to behavior |
Source: | Binary string: | ||
Source: | Binary string: |
Source: | TCP traffic: |
Source: | TCP traffic: |
Source: | Memory has grown: |
Networking: |
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C2 URLs / IPs found in malware configuration | Show sources |
Source: | URLs: |
Source: | HTTP traffic detected: |