Malware Analysis Report

2024-11-15 06:26

Sample ID 240618-sf2wlayelf
Target payload.exe
SHA256 ee7e36e4f460751432305467cb11d85ff90591a59223a5d7da3a33144b02a6c4
Tags
agenttesla keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

ee7e36e4f460751432305467cb11d85ff90591a59223a5d7da3a33144b02a6c4

Threat Level: Known bad

The file payload.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger persistence spyware stealer trojan

AgentTesla

Reads data files stored by FTP clients

Reads WinSCP keys stored on the system

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Looks up external IP address via web service

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-18 15:04

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-18 15:04

Reported

2024-06-18 15:15

Platform

win10v2004-20240508-en

Max time kernel

529s

Max time network

539s

Command Line

"C:\Users\Admin\AppData\Local\Temp\payload.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gcfbzna = "C:\\Users\\Admin\\AppData\\Roaming\\Gcfbzna.bat" C:\Users\Admin\AppData\Local\Temp\payload.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1416 set thread context of 2896 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\payload.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\payload.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\payload.exe

"C:\Users\Admin\AppData\Local\Temp\payload.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 api.ipify.org udp

Files

memory/1416-0-0x000000007471E000-0x000000007471F000-memory.dmp

memory/1416-1-0x0000000000D70000-0x00000000011DA000-memory.dmp

memory/1416-2-0x0000000006E10000-0x0000000007042000-memory.dmp

memory/1416-3-0x00000000075F0000-0x0000000007B94000-memory.dmp

memory/1416-4-0x00000000070E0000-0x0000000007172000-memory.dmp

memory/1416-10-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-8-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-24-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-6-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-5-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-48-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-28-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-26-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-22-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-20-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-18-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-16-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-14-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-12-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-52-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-68-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-66-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-64-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-62-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-60-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-58-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-56-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-54-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-50-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-46-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-44-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-42-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-40-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-38-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-36-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-35-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-32-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-30-0x0000000006E10000-0x000000000703B000-memory.dmp

memory/1416-4891-0x0000000074710000-0x0000000074EC0000-memory.dmp

memory/1416-4893-0x0000000005C70000-0x0000000005CBC000-memory.dmp

memory/1416-4894-0x0000000074710000-0x0000000074EC0000-memory.dmp

memory/1416-4892-0x0000000005C00000-0x0000000005C6C000-memory.dmp

memory/1416-4895-0x0000000007310000-0x0000000007364000-memory.dmp

memory/1416-4898-0x0000000074710000-0x0000000074EC0000-memory.dmp

memory/2896-4899-0x0000000074710000-0x0000000074EC0000-memory.dmp

memory/2896-4900-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2896-4901-0x00000000051C0000-0x0000000005226000-memory.dmp

memory/2896-4902-0x0000000074710000-0x0000000074EC0000-memory.dmp

memory/2896-4903-0x00000000068B0000-0x0000000006900000-memory.dmp

memory/2896-4904-0x0000000006940000-0x000000000694A000-memory.dmp

memory/2896-4905-0x0000000074710000-0x0000000074EC0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-18 15:04

Reported

2024-06-18 15:15

Platform

win7-20240611-en

Max time kernel

359s

Max time network

361s

Command Line

"C:\Users\Admin\AppData\Local\Temp\payload.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\Gcfbzna = "C:\\Users\\Admin\\AppData\\Roaming\\Gcfbzna.bat" C:\Users\Admin\AppData\Local\Temp\payload.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A
N/A ip-api.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2736 set thread context of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\payload.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\payload.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2736 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\payload.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\payload.exe

"C:\Users\Admin\AppData\Local\Temp\payload.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.ipify.org udp
US 104.26.13.205:443 api.ipify.org tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp

Files

memory/2736-0-0x000000007444E000-0x000000007444F000-memory.dmp

memory/2736-1-0x0000000000110000-0x000000000057A000-memory.dmp

memory/2736-2-0x0000000006040000-0x0000000006272000-memory.dmp

memory/2736-4-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-10-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-3-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-6-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-34-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-38-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-45-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-48-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-8-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-14-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-30-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-32-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-36-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-28-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-26-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-24-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-22-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-20-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-18-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-17-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-12-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-40-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-42-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-46-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-50-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-56-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-52-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-66-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-64-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-62-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-60-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-58-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-54-0x0000000006040000-0x000000000626B000-memory.dmp

memory/2736-4890-0x00000000026A0000-0x00000000026EC000-memory.dmp

memory/2736-4889-0x00000000025C0000-0x000000000262C000-memory.dmp

memory/2736-4891-0x0000000074440000-0x0000000074B2E000-memory.dmp

memory/2736-4892-0x00000000047A0000-0x00000000047F4000-memory.dmp

memory/2736-4911-0x0000000074440000-0x0000000074B2E000-memory.dmp

memory/2552-4912-0x0000000000090000-0x00000000000D2000-memory.dmp