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Analysis Report RF_IMG_7510.doc
Overview
General Information
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
Startup |
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Malware Configuration |
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Threatname: Agenttesla |
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{"Username: ": "Gi6ZhBE2T8YN", "URL: ": "http://ofpDdlcDvB.net", "To: ": "", "ByHost: ": "nobettwo.xyz:587", "Password: ": "VXwEltTnJ0xs", "From: ": ""}
Yara Overview |
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Memory Dumps |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_BedsObfuscator | Yara detected Beds Obfuscator | Joe Security | ||
JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
Click to see the 19 entries |
Unpacked PEs |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_BedsObfuscator | Yara detected Beds Obfuscator | Joe Security | ||
JoeSecurity_BedsObfuscator | Yara detected Beds Obfuscator | Joe Security | ||
JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_BedsObfuscator | Yara detected Beds Obfuscator | Joe Security | ||
Click to see the 17 entries |
Sigma Overview |
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System Summary: |
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Sigma detected: Droppers Exploiting CVE-2017-11882 | Show sources |
Source: | Author: Florian Roth: |
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: |
Sigma detected: Executables Started in Suspicious Folder | Show sources |
Source: | Author: Florian Roth: |
Sigma detected: Execution in Non-Executable Folder | Show sources |
Source: | Author: Florian Roth: |
Sigma detected: Suspicious Program Location Process Starts | Show sources |
Source: | Author: Florian Roth: |
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: |
Machine Learning detection for dropped file | Show sources |
Source: | Joe Sandbox ML: | ||
Source: | Joe Sandbox ML: | ||
Source: | Joe Sandbox ML: |
Exploits: |
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Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) | Show sources |
Source: | Process created: | Jump to behavior |
Source: | Process created: |
Compliance: |
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Uses new MSVCR Dlls | Show sources |
Source: | File opened: | Jump to behavior |
Binary contains paths to debug symbols | Show sources |
Source: | Binary string: | ||
Source: | Binary string: |
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior |
Source: | DNS query: |
Source: | TCP traffic: |
Source: | TCP traffic: |
Networking: |
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Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) | Show sources |
Source: | Snort IDS: |
C2 URLs / IPs found in malware configuration | Show sources |
Source: | URLs: |
Connects to a URL shortener service | Show sources |
Source: | DNS query: |
Downloads files with wrong headers with respect to MIME Content-Type | Show sources |
Source: | Image file has PE prefix: |