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Edit tourWindows Analysis Report Justificante de Pago 25112021.pdf _.exe
Overview
General Information
| Sample Name: | Justificante de Pago 25112021.pdf _.exe |
| Analysis ID: | 528616 |
| MD5: | 494cd8be1913f9def79b10031587aa8a |
| SHA1: | ff74b67fa7c03d4fb388f49289ff14639656b3d3 |
| SHA256: | 75934da02313e0d772b4703bfaa3331311fc5a2b981f8ff0e455795bc3448ddb |
| Infos: | |
Most interesting Screenshot:  | |
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
Multi AV Scanner detection for submitted file
Yara detected AgentTesla
Yara detected GuLoader
Hides threads from debuggers
Tries to steal Mail credentials (via file / registry access)
Initial sample is a PE file and has a suspicious name
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
C2 URLs / IPs found in malware configuration
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
Creates processes with suspicious names
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)
Sample file is different than original file name gathered from version info
PE file contains strange resources
Tries to load missing DLLs
Detected TCP or UDP traffic on non-standard ports
Checks if the current process is being debugged
Uses SMTP (mail sending)
PE / OLE file has an invalid certificate
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
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
Process Tree |
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Malware Configuration |
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Threatname: Agenttesla |
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{"Exfil Mode": "SMTP", "SMTP Info": "dherdiana@rpxholding.comdha10apasmtp.rpxholding.comjo.esg2000@gmail.com"}Threatname: GuLoader |
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{"Payload URL": "https://onedrive.live.com/download?c"}Yara Overview |
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Memory Dumps |
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| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
| JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
| JoeSecurity_GuLoader_2 | Yara detected GuLoader | Joe Security | ||
| JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
| JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security |
Sigma Overview |
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| No Sigma rule has matched |
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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: | ||
| Source: | Malware Configuration Extractor: | ||
| Multi AV Scanner detection for submitted file | Show sources | ||
| Source: | Virustotal: | Perma Link | ||
| Source: | ReversingLabs: | |||
| Source: | Code function: | ||
| Source: | Code function: | ||
| Source: | Static PE information: | ||
| Source: | Binary string: | ||
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: | ||
| Source: | ASN Name: | ||
| Source: | TCP traffic: | ||
| Source: | TCP traffic: | ||
| Source: | UDP traffic detected without corresponding DNS query: | ||
| Source: | UDP traffic detected without corresponding DNS query: | ||
| Source: | UDP traffic detected without corresponding DNS query: | ||
| Source: | String found in binary or memory: | ||