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Analysis Report RF_IMG_7510.doc
Overview
General Information
| Sample Name: | RF_IMG_7510.doc |
| Analysis ID: | 358285 |
| MD5: | 0551c37e30c260db5280bf425158b5b9 |
| SHA1: | 840c2cabdf7c0c31695e2b8ff9c4742f21555f65 |
| SHA256: | 96703b50d7076b66dffce4f08ec5d1fca31f394b441bca2476eae3aaad6a6d50 |
| Tags: | doc |
| Infos: | |
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Most interesting Screenshot:  |
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Detection
AgentTesla
| 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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected AgentTesla
.NET source code contains very large array initializations
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Connects to a URL shortener service
Downloads files with wrong headers with respect to MIME Content-Type
Drops PE files to the startup folder
Drops PE files to the user root directory
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Powershell drops PE file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: Suspicious Program Location Process Starts
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Yara detected Beds Obfuscator
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Contains functionality to call native functions
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a start menu entry (Start Menu\Programs\Startup)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Downloads executable code via HTTP
Drops PE files
Drops PE files to the user directory
Drops files with a non-matching file extension (content does not match file extension)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
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 DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Stores files to the Windows start menu directory
Uses SMTP (mail sending)
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer
Classification
AV Detection: |
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| Found malware configuration |
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Malware Configuration Extractor: |
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| Multi AV Scanner detection for submitted file |
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ReversingLabs: |
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| Machine Learning detection for dropped file |
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Joe Sandbox ML: |
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Joe Sandbox ML: |
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Joe Sandbox ML: |
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Exploits: |
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| Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) |
| Source: |
Process created: |
Jump to behavior | ||
| Office Equation Editor has been started |
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Process created: |
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Compliance: |
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| Uses new MSVCR Dlls |
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File opened: |
Jump to behavior | ||
| Binary contains paths to debug symbols |
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Binary string: |
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Binary string: |
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File opened: |
Jump to behavior | ||
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File opened: |
Jump to behavior | ||
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File opened: |
Jump to behavior | ||
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File opened: |
Jump to behavior | ||
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File opened: |
Jump to behavior | ||
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File opened: |
Jump to behavior | ||
Software Vulnerabilities: |
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| Potential document exploit detected (performs DNS queries) |
| Source: |
DNS query: |
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| Potential document exploit detected (performs HTTP gets) |
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TCP traffic: |
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| Potential document exploit detected (unknown TCP traffic) |
| Source: |
TCP traffic: |
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Networking: |
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| Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) |
| Source: |
Snort IDS: |
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| C2 URLs / IPs found in malware configuration |
| Source: |
URLs: |
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| Connects to a URL shortener service |
| Source: |
DNS query: |
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| Downloads files with wrong headers with respect to MIME Content-Type |
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Image file has PE prefix: | ||