Malware Analysis Report

2025-08-05 16:17

Sample ID 240521-cbhn6aeg5w
Target b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314
SHA256 b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314
Tags
agenttesla keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314

Threat Level: Known bad

The file b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314 was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

Reads user/profile data of web browsers

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Looks up external IP address via web service

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

2024-05-21 01:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-21 01:54

Reported

2024-05-21 01:56

Platform

win7-20240215-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.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

Looks up external IP address via web service

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2824 set thread context of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.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:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2824 wrote to memory of 1624 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\system32\WerFault.exe
PID 2824 wrote to memory of 1624 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\system32\WerFault.exe
PID 2824 wrote to memory of 1624 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe

"C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe"

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2824 -s 628

Network

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

Files

memory/2824-0-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

memory/2824-1-0x00000000001C0000-0x00000000001D0000-memory.dmp

memory/2824-2-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

memory/2824-3-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

memory/2824-4-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

memory/2824-5-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

memory/2824-6-0x000000001ADE0000-0x000000001AE74000-memory.dmp

memory/2800-7-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2800-8-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2800-14-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2800-16-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2800-12-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2800-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2800-9-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2800-10-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2824-17-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

memory/2824-18-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-21 01:54

Reported

2024-05-21 01:56

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Looks up external IP address via web service

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2464 set thread context of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2464 wrote to memory of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 4404 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2464 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe

"C:\Users\Admin\AppData\Local\Temp\b7f8e5d5eb84ea1419064f1d85b0e6570f9fb2b9cbc5eb72b11e463a3d7e6314.exe"

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 13.179.89.13.in-addr.arpa udp

Files

memory/2464-0-0x00007FFA3ADD3000-0x00007FFA3ADD5000-memory.dmp

memory/2464-1-0x00000194CC440000-0x00000194CC450000-memory.dmp

memory/2464-2-0x00007FFA3ADD0000-0x00007FFA3B891000-memory.dmp

memory/2464-3-0x00007FFA3ADD0000-0x00007FFA3B891000-memory.dmp

memory/2464-4-0x00000194CC670000-0x00000194CC704000-memory.dmp

memory/4404-5-0x0000000000400000-0x0000000000442000-memory.dmp

memory/4404-6-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

memory/4404-7-0x0000000005900000-0x0000000005EA4000-memory.dmp

memory/4404-8-0x0000000005470000-0x00000000054D6000-memory.dmp

memory/4404-9-0x0000000074C00000-0x00000000753B0000-memory.dmp

memory/2464-10-0x00007FFA3ADD0000-0x00007FFA3B891000-memory.dmp

memory/4404-11-0x00000000066D0000-0x0000000006720000-memory.dmp

memory/4404-12-0x00000000067C0000-0x0000000006852000-memory.dmp

memory/4404-13-0x0000000006760000-0x000000000676A000-memory.dmp

memory/4404-14-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

memory/4404-15-0x0000000074C00000-0x00000000753B0000-memory.dmp