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Windows Analysis Report DHL Delivery Invoice AWB 2774038374 .pdf.exe
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
Detected unpacking (overwrites its own PE header)
Yara detected AgentTesla
Yara detected AntiVM3
Antivirus / Scanner detection for submitted sample
Detected unpacking (changes PE section rights)
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Installs a global keyboard hook
Tries to steal Mail credentials (via file / registry access)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Initial sample is a PE file and has a suspicious name
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Contains functionality to register a low level keyboard hook
Sigma detected: Suspicius Add Task From User AppData Temp
Machine Learning detection for sample
Sigma detected: Powershell Defender Exclusion
.NET source code contains very large array initializations
Machine Learning detection for dropped file
Adds a directory exclusion to Windows Defender
Uses an obfuscated file name to hide its real file extension (double extension)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Uses schtasks.exe or at.exe to add and modify task schedules
Tries to harvest and steal browser information (history, passwords, etc)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Yara detected Credential Stealer
Creates processes with suspicious names
IP address seen in connection with other malware
Contains long sleeps (>= 3 min)
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
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)
Sample file is different than original file name gathered from version info
Drops PE files
Detected TCP or UDP traffic on non-standard ports
Uses SMTP (mail sending)
Creates a window with clipboard capturing capabilities
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
Process Tree |
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Malware Configuration |
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Threatname: Agenttesla |
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{"Exfil Mode": "SMTP", "Username": "vladmir@amova.ga", "Password": "marcellinus360", "Host": "smtp.yandex.com"}
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 14 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_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 16 entries |
Sigma Overview |
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System Summary: |
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Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments | Show sources |
Source: | Author: Oleg Kolesnikov @securonix invrep_de, oscd.community, Florian Roth, Christian Burkard: |
Sigma detected: Suspicius Add Task From User AppData Temp | Show sources |
Source: | Author: frack113: |
Sigma detected: Powershell Defender Exclusion | Show sources |
Source: | Author: Florian Roth: |
Sigma detected: Possible Applocker Bypass | Show sources |
Source: | Author: juju4: |
Sigma detected: Non Interactive PowerShell | Show sources |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Sigma detected: T1086 PowerShell Execution | Show sources |
Source: | Author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research): |
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: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
Antivirus / Scanner detection for submitted sample | Show sources |
Source: | Avira: |
Antivirus detection for dropped file | Show sources |
Source: | Avira: |
Multi AV Scanner detection for dropped file | Show sources |
Source: | ReversingLabs: |
Machine Learning detection for sample | Show sources |
Source: | Joe Sandbox ML: |
Machine Learning detection for dropped file | Show sources |
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Compliance: |
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Detected unpacking (overwrites its own PE header) | Show sources |
Source: | Unpacked PE file: |
Source: | Static PE information: |
Source: | Static PE information: |
Source: | Code function: | 0_2_04F474DC | |
Source: | Code function: | 0_2_04F4A7A8 |
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