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Windows Analysis Report
PO#4200000866.exe

Overview

General Information

Sample Name:PO#4200000866.exe
Analysis ID:624323
MD5:5d0444b70ff5caa4ec3b2ca2e563e724
SHA1:27309fdae9005f71dcde3501f023819ae6dba6cb
SHA256:fd620fd2a9d5ca1dea1e11013eb4ec486f2f5cb340cd28bcbe39e78271fc5d26
Infos:

Detection

AgentTesla, GuLoader
Score:100
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected AgentTesla
Antivirus detection for URL or domain
Yara detected GuLoader
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
Contains functionality to shutdown / reboot the system
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
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 functionality to call native functions
Contains functionality to dynamically determine API calls
Found dropped PE file which has not been started or loaded
Contains functionality for execution timing, often used to detect debuggers
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)
PE file does not import any functions
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
Checks if the current process is being debugged
Contains functionality to detect virtual machines (SLDT)
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)
Contains functionality for read data from the clipboard

Classification