Malware Analysis Report

2025-08-06 00:57

Sample ID 241017-bgy3naxckn
Target 998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1
SHA256 998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1
Tags
agenttesla collection discovery 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

998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1

Threat Level: Known bad

The file 998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1 was found to be: Known bad.

Malicious Activity Summary

agenttesla collection discovery keylogger spyware stealer trojan

AgentTesla

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-17 01:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-17 01:07

Reported

2024-10-17 01:10

Platform

win7-20241010-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2500 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe

"C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 ftp.aminhacorretora.com.br udp
US 162.241.203.30:21 ftp.aminhacorretora.com.br tcp

Files

memory/2500-0-0x000000007481E000-0x000000007481F000-memory.dmp

memory/2500-1-0x0000000000C40000-0x0000000000D12000-memory.dmp

memory/2500-2-0x00000000046E0000-0x000000000477E000-memory.dmp

memory/2500-3-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2500-4-0x000000007481E000-0x000000007481F000-memory.dmp

memory/2500-5-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2500-6-0x0000000000A00000-0x0000000000A1A000-memory.dmp

memory/2500-7-0x0000000000790000-0x0000000000796000-memory.dmp

memory/2824-11-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2824-12-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2824-10-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2824-9-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2500-8-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2824-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2500-15-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2824-17-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2824-16-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2824-18-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2824-21-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2824-20-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2500-19-0x0000000074810000-0x0000000074EFE000-memory.dmp

memory/2824-28-0x0000000074810000-0x0000000074EFE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-17 01:07

Reported

2024-10-17 01:10

Platform

win10v2004-20241007-en

Max time kernel

141s

Max time network

108s

Command Line

"C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4532 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4532 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4532 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4532 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4532 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4532 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4532 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4532 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe

"C:\Users\Admin\AppData\Local\Temp\998eba3fb3d9cadc3f523a0b24fceb33b20120105b35b3ff77f4dce52a91b5b1.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 27.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 ftp.aminhacorretora.com.br udp
US 162.241.203.30:21 ftp.aminhacorretora.com.br tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 30.203.241.162.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp

Files

memory/4532-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

memory/4532-1-0x00000000007A0000-0x0000000000872000-memory.dmp

memory/4532-2-0x0000000004D50000-0x0000000004DEC000-memory.dmp

memory/4532-3-0x0000000004DF0000-0x0000000004E82000-memory.dmp

memory/4532-4-0x0000000005440000-0x00000000059E4000-memory.dmp

memory/4532-5-0x0000000074B00000-0x00000000752B0000-memory.dmp

memory/4532-6-0x0000000004EB0000-0x0000000004F4E000-memory.dmp

memory/4532-7-0x0000000005020000-0x000000000502A000-memory.dmp

memory/4532-8-0x0000000074B00000-0x00000000752B0000-memory.dmp

memory/4532-9-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

memory/4532-10-0x0000000074B00000-0x00000000752B0000-memory.dmp

memory/4532-11-0x0000000006AA0000-0x0000000006ABA000-memory.dmp

memory/4532-12-0x0000000009090000-0x0000000009096000-memory.dmp

memory/812-13-0x0000000000400000-0x0000000000430000-memory.dmp

memory/4532-15-0x0000000074B00000-0x00000000752B0000-memory.dmp

memory/812-16-0x0000000074B00000-0x00000000752B0000-memory.dmp

memory/812-17-0x00000000050A0000-0x0000000005106000-memory.dmp

memory/812-18-0x0000000074B00000-0x00000000752B0000-memory.dmp

memory/812-19-0x00000000064A0000-0x00000000064F0000-memory.dmp

memory/812-20-0x00000000066C0000-0x0000000006882000-memory.dmp

memory/812-30-0x0000000074B00000-0x00000000752B0000-memory.dmp