Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14-01-2025 05:54
Behavioral task
behavioral1
Sample
9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe
Resource
win10v2004-20241007-en
General
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Target
9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe
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Size
865KB
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MD5
1a7abe9e106061518af508da22e23f5a
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SHA1
7fade567e39f7f45fe609cb90314071326ad8ea7
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SHA256
9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a
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SHA512
3c29f78c707b449014bf9df4ad9ccdbe63f976a982386607af5dffbb2846124ca4ae33ce697d61d37d056f4b0d9a2953c258db02effc6e32ca43cf1424ee6896
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SSDEEP
12288:4YV6MorX7qzuC3QHO9FQVHPF51jgcqxk2HW06fpZYxEkaOiOeuZmCxcdif1BW9:XBXu9HGaVHqHHafpEEoeVCSUfu9
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Agenttesla family
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AgentTesla payload 12 IoCs
resource yara_rule behavioral2/memory/1168-8-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-33-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-31-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-30-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-28-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-25-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-24-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-22-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-20-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-19-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-18-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1168-17-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
Drops startup file 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bi.url 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyApp\\MyApp.exe" RegAsm.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 39 checkip.amazonaws.com -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/392-13-0x0000000000C60000-0x0000000000E3D000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 392 set thread context of 1168 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 83 -
resource yara_rule behavioral2/memory/392-0-0x0000000000C60000-0x0000000000E3D000-memory.dmp upx behavioral2/memory/392-13-0x0000000000C60000-0x0000000000E3D000-memory.dmp upx -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1168 RegAsm.exe 1168 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1168 RegAsm.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1168 RegAsm.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 392 wrote to memory of 1168 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 83 PID 392 wrote to memory of 1168 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 83 PID 392 wrote to memory of 1168 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 83 PID 392 wrote to memory of 1168 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 83 PID 392 wrote to memory of 1168 392 9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe 83 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe"C:\Users\Admin\AppData\Local\Temp\9d0f3f9cbb03a1c6fb15fa07754c9738ed3caa2695ae4c5684d2409dc103bc0a.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:392 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1168
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1