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Analysis Report lNCyFjhn7M
Overview
General Information
Detection
AgentTesla
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Multi AV Scanner detection for submitted file
Yara detected AgentTesla
Yara detected AntiVM_3
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Injects a PE file into a foreign processes
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Antivirus or Machine Learning detection for unpacked file
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
PE file contains strange resources
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
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses SMTP (mail sending)
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: ": "E943pmspWkN", "URL: ": "https://femFzmplqt.net", "To: ": "", "ByHost: ": "mail.hybridgroupco.com:587", "Password: ": "RgZuUQv5z", "From: ": ""}
Yara Overview |
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Memory Dumps |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_AntiVM_3 | Yara detected AntiVM_3 | 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 4 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_AgentTesla_1 | Yara detected AgentTesla | 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 | ||
Click to see the 1 entries |
Sigma Overview |
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No Sigma rule has matched |
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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: | Metadefender: | Perma Link | ||
Source: | ReversingLabs: |
Source: | Avira: |
Compliance: |
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Uses 32bit PE files | Show sources |
Source: | Static PE information: |
Uses new MSVCR Dlls | Show sources |
Source: | File opened: |
Contains modern PE file flags such as dynamic base (ASLR) or NX | Show sources |
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Binary contains paths to debug symbols | Show sources |
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Networking: |
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C2 URLs / IPs found in malware configuration | Show sources |
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System Summary: |
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.NET source code contains very large array initializations | Show sources |
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.NET source code contains very large strings | Show sources |
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