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Windows Analysis Report Customer-unionroadwaysltd-8754-PO.doc__.rtf
Overview
General Information
Detection
AgentTesla
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Found malware configuration
Multi AV Scanner detection for dropped file
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
Sigma detected: Powershell adding suspicious path to exclusion list
Sigma detected: Suspect Svchost Activity
System process connects to network (likely due to code injection or exploit)
Yara detected AgentTesla
Yara detected AgentTesla
Adds a directory exclusion to Windows Defender
Creates an autostart registry key pointing to binary in C:\Windows
Creates multiple autostart registry keys
Drops PE files to the startup folder
Drops PE files with benign system names
Drops executables to the windows directory (C:\Windows) and starts them
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
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: System File Execution Location Anomaly
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to evade analysis by execution special instruction which cause usermode exception
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)
Uses the Telegram API (likely for C&C communication)
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Binary contains a suspicious time stamp
Checks for kernel debuggers (NtQuerySystemInformation(SystemKernelDebuggerInformation))
Checks if the current process is being debugged
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)
Creates a window with clipboard capturing capabilities
Creates files inside the system directory
Detected potential crypto function
Downloads executable code via HTTP
Drops PE files
Drops PE files to the windows directory (C:\Windows)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint 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)
Office Equation Editor has been started
One or more processes crash
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
Sample execution stops while process was sleeping (likely an evasion)
Shows file infection / information gathering behavior (enumerates multiple directory for files)
Sigma detected: Non Interactive PowerShell
Stores files to the Windows start menu directory
Uses code obfuscation techniques (call, push, ret)
Classification
Process Tree |
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Malware Configuration |
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Threatname: Agenttesla |
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{"Exfil Mode": "Telegram", "Chat id": "1656309456", "Chat URL": "https://api.telegram.org/bot1808150300:AAFr5mDhGJk55lRZMS6fZfbBAMiNT0kiqDQ/sendDocument"}
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_AgentTesla_2 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_AgentTesla_2 | 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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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: Suspect Svchost Activity | Show sources |
Source: | Author: David Burkett: |
Sigma detected: System File Execution Location Anomaly | Show sources |
Source: | Author: Florian Roth, Patrick Bareiss, Anton Kutepov, oscd.community: |
Sigma detected: Non Interactive PowerShell | Show sources |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Sigma detected: Windows Processes Suspicious Parent Directory | Show sources |
Source: | Author: vburov: |
Malware Analysis System Evasion: |
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Sigma detected: Powershell adding suspicious path to exclusion list | Show sources |
Source: | Author: Joe Security: |
Signature Overview |
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Click to jump to signature section
Show All Signature Results
AV Detection: |
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Antivirus detection for URL or domain | Show sources |
Source: | Avira URL Cloud: |
Found malware configuration | Show sources |
Source: | Malware Configuration Extractor: |
Multi AV Scanner detection for dropped file | Show sources |
Source: | ReversingLabs: | ||
Source: | ReversingLabs: | ||
Source: | ReversingLabs: | ||
Source: | ReversingLabs: |
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: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: |
Source: | Binary string: | ||
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Source: | Directory queried: |
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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Uses the Telegram API (likely for C&C communication) | Show sources |
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
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Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: | ||
Source: | DNS query: |
Source: | HTTP traffic detected: |