Analysis Overview
SHA256
b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8
Threat Level: Known bad
The file b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8 was found to be: Known bad.
Malicious Activity Summary
AgentTesla
AgentTesla payload
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads WinSCP keys stored on the system
Accesses Microsoft Outlook profiles
Adds Run key to start application
AutoIT Executable
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
outlook_office_path
Suspicious use of SetWindowsHookEx
outlook_win_path
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-19 02:27
Signatures
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-19 02:27
Reported
2024-06-19 02:30
Platform
win7-20240611-en
Max time kernel
119s
Max time network
123s
Command Line
Signatures
AgentTesla
AgentTesla payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\ntippqoqbw = "C:\\Users\\Public\\ntippqoqbw.vbs" | C:\Users\Admin\AppData\Local\Temp\b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2736 set thread context of 2996 | N/A | C:\Users\Admin\AppData\Local\Temp\b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8.exe
"C:\Users\Admin\AppData\Local\Temp\b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
Network
Files
memory/2736-2-0x0000000000300000-0x0000000000301000-memory.dmp
memory/2996-4-0x0000000000400000-0x000000000045A000-memory.dmp
memory/2996-3-0x0000000000400000-0x000000000045A000-memory.dmp
memory/2996-11-0x0000000000400000-0x000000000045A000-memory.dmp
memory/2996-10-0x0000000000400000-0x000000000045A000-memory.dmp
memory/2996-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2996-12-0x0000000074952000-0x0000000074954000-memory.dmp
memory/2996-13-0x0000000074952000-0x0000000074954000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-19 02:27
Reported
2024-06-19 02:30
Platform
win10v2004-20240508-en
Max time kernel
147s
Max time network
150s
Command Line
Signatures
AgentTesla
AgentTesla payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ntippqoqbw = "C:\\Users\\Public\\ntippqoqbw.vbs" | C:\Users\Admin\AppData\Local\Temp\b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1992 set thread context of 2492 | N/A | C:\Users\Admin\AppData\Local\Temp\b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8.exe
"C:\Users\Admin\AppData\Local\Temp\b3b58a7d2eeda1ca29664aa79a79acd2df41e06b503c5af6a91c536e8798bab8.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
Files
memory/1992-2-0x0000000003590000-0x0000000003591000-memory.dmp
memory/2492-3-0x0000000000400000-0x000000000045A000-memory.dmp
memory/2492-8-0x0000000073722000-0x0000000073723000-memory.dmp
memory/2492-9-0x0000000073720000-0x0000000073CD1000-memory.dmp
memory/2492-10-0x0000000073720000-0x0000000073CD1000-memory.dmp
memory/2492-11-0x0000000073722000-0x0000000073723000-memory.dmp
memory/2492-12-0x0000000073720000-0x0000000073CD1000-memory.dmp