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Edit tourWindows Analysis Report K0bg9rZl2L
Overview
General Information
| Sample Name: | K0bg9rZl2L (renamed file extension from none to exe) |
| Analysis ID: | 452750 |
| MD5: | 699e56ea4da0b0865fc33308a8b09df9 |
| SHA1: | c32dff686616f747f808a5c0bc67484d4755f568 |
| SHA256: | e5805ba9f9119986eb49be00972cb30d5249f8c19c872c4daacb2ad67a157bb5 |
| Tags: | 32exetrojan |
| Infos: | |
Most interesting Screenshot:  | |
Detection
AgentTesla
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Found malware configuration
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected AgentTesla
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected UAC Bypass using CMSTP
Adds a directory exclusion to Windows Defender
Injects a PE file into a foreign processes
Machine Learning detection for sample
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: Powershell Defender Exclusion
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
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)
Antivirus or Machine Learning detection for unpacked file
Binary contains a suspicious time stamp
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
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)
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 file is different than original file name gathered from version info
Uses SMTP (mail sending)
Uses code obfuscation techniques (call, push, ret)
Uses insecure TLS / SSL version for HTTPS connection
Yara detected Credential Stealer
Classification
Process Tree |
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Malware Configuration |
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Threatname: Agenttesla |
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{"Exfil Mode": "SMTP", "Username": "bookings@simpleitalian.com.au", "Password": "SIpassword101$", "Host": "mail.simpleitalian.com.au"}Yara Overview |
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Memory Dumps |
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| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| JoeSecurity_CredentialStealer | Yara detected Credential Stealer | 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 | ||
| JoeSecurity_AntiVM_3 | Yara detected AntiVM_3 | Joe Security | ||
| Click to see the 11 entries | ||||
Unpacked PEs |
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| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| JoeSecurity_UACBypassusingCMSTP | Yara detected UAC Bypass using CMSTP | 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 | ||
| JoeSecurity_AgentTesla_2 | Yara detected AgentTesla | Joe Security | ||
| Click to see the 13 entries | ||||
Sigma Overview |
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System Summary: |   |
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| Sigma detected: Powershell Defender Exclusion | Show sources | ||
| Source: | Author: Florian Roth: | ||
| Sigma detected: Non Interactive PowerShell | Show sources | ||
| Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): | ||
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 domain / URL | Show sources | ||
| Source: | Virustotal: | Perma Link | ||
| Multi AV Scanner detection for submitted file | Show sources | ||
| Source: | Virustotal: | Perma Link | ||
| Source: | ReversingLabs: | |||
| Machine Learning detection for sample | Show sources | ||
| Source: | Joe Sandbox ML: | ||
| Source: | Avira: | ||
Exploits: | |
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| Yara detected UAC Bypass using CMSTP | Show sources | ||
| Source: | File source: | ||
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| Source: | HTTPS traffic detected: | ||
| Source: | Static PE information: | ||
| Source: | TCP traffic: | ||
| Source: | IP Address: | ||
| Source: | ASN Name: | ||
| Source: | ASN Name: | ||
| Source: | JA3 fingerprint: | ||
| Source: | TCP traffic: | ||
| Source: | HTTPS traffic detected: | ||
| Source: | String found in binary or memory: | ||
| Source: | String found in binary or memory: | ||
| Source: | String found in binary or memory: | ||