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Windows Analysis Report Contract and PI of 1500W.exe
Overview
General Information
| Sample Name: | Contract and PI of 1500W.exe |
| Analysis ID: | 1651 |
| MD5: | dbceab5b0f79168ffea64f16bf7f1263 |
| SHA1: | c5c25d75233ea8523111b1f964fbd482be973cd7 |
| SHA256: | 7d6174dce4980e71b083ae63d3b165b50b20855edb40ffa10a06a8e46e765cab |
| Infos: | |
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Most interesting Screenshot:  |
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Detection
AgentTesla GuLoader
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Found malware configuration
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Potential malicious icon found
Yara detected AgentTesla
Sigma detected: RegAsm connects to smtp port
Yara detected GuLoader
Hides threads from debuggers
Writes to foreign memory regions
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to detect Any.run
Tries to harvest and steal ftp login credentials
Modifies the hosts file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Tries to steal Mail credentials (via file access)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Yara detected Credential Stealer
JA3 SSL client fingerprint seen in connection with other malware
Contains long sleeps (>= 3 min)
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)
Sample file is different than original file name gathered from version info
PE file contains strange resources
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Detected TCP or UDP traffic on non-standard ports
Checks if the current process is being debugged
Uses SMTP (mail sending)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Dropped file seen in connection with other malware
Uses Microsoft's Enhanced Cryptographic Provider
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
AV Detection: |
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| Found malware configuration |
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Malware Configuration Extractor: |
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Malware Configuration Extractor: |
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Cryptography: |
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| Uses Microsoft's Enhanced Cryptographic Provider |
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Code function: |
9_2_1CD2DA50 | |
| Source: |
Code function: |
9_2_1CD2E0FB | |
Compliance: |
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| Uses 32bit PE files |
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Static PE information: |
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HTTPS traffic detected: |
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HTTPS traffic detected: |
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Binary string: |
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Binary string: |
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Software Vulnerabilities: |
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| Found inlined nop instructions (likely shell or obfuscated code) |
| Source: |
Code function: |
2_2_004022C3 | |
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Code function: |
2_2_004031BE | |
Networking: |
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| Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) |
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Snort IDS: |
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| C2 URLs / IPs found in malware configuration |
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URLs: |
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| Internet Provider seen in connection with other malware |
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ASN Name: |
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| JA3 SSL client fingerprint seen in connection with other malware |
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JA3 fingerprint: |
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| Uses a known web browser user agent for HTTP communication |
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HTTP traffic detected: |
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HTTP traffic detected: |
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| Detected TCP or UDP traffic on non-standard ports |
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TCP traffic: |
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| Uses SMTP (mail sending) |
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TCP traffic: |
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Network traffic detected: |
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Network traffic detected: |
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Network traffic detected: |
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Network traffic detected: |
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UDP traffic detected without corresponding DNS query: |
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UDP traffic detected without corresponding DNS query: |
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UDP traffic detected without corresponding DNS query: |
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String found in binary or memory: | ||