Analysis
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max time kernel
131s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 02:19
Static task
static1
Behavioral task
behavioral1
Sample
proponet.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
proponet.exe
Resource
win10v2004-20220414-en
General
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Target
proponet.exe
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Size
394KB
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MD5
77fd5a13e3c1bf9e75dbea2453bbe9dc
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SHA1
9bcf0ca9cc19140141d243d1a6ebb57a01da5d58
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SHA256
e4a95445ff5dddd4211458a130f22eef7295501a4d3bab11b9f13a4f1c689eb1
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SHA512
187ee0d48df7bf6517f2064521655958979707da12a7f7fb81d5a7c918050185a7442edefa4ab05cdd2a5c1b858021fa4e22f31501e91a2a68c0bb909e21cc4f
Malware Config
Extracted
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
1xH}wgu7}f%E
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
1xH}wgu7}f%E
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1560-132-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla -
Looks for VirtualBox Guest Additions in registry 2 TTPs
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Looks for VMWare Tools registry key 2 TTPs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
proponet.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion proponet.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion proponet.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 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
proponet.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 proponet.exe Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 proponet.exe Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 proponet.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
proponet.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum proponet.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 proponet.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
proponet.exedescription pid process target process PID 4500 set thread context of 1560 4500 proponet.exe proponet.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
proponet.exepid process 1560 proponet.exe 1560 proponet.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
proponet.exepid process 1560 proponet.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
proponet.exedescription pid process Token: SeDebugPrivilege 1560 proponet.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
proponet.exeproponet.exedescription pid process target process PID 4500 wrote to memory of 1560 4500 proponet.exe proponet.exe PID 4500 wrote to memory of 1560 4500 proponet.exe proponet.exe PID 4500 wrote to memory of 1560 4500 proponet.exe proponet.exe PID 4500 wrote to memory of 1560 4500 proponet.exe proponet.exe PID 4500 wrote to memory of 1560 4500 proponet.exe proponet.exe PID 4500 wrote to memory of 1560 4500 proponet.exe proponet.exe PID 4500 wrote to memory of 1560 4500 proponet.exe proponet.exe PID 4500 wrote to memory of 1560 4500 proponet.exe proponet.exe PID 1560 wrote to memory of 4956 1560 proponet.exe netsh.exe PID 1560 wrote to memory of 4956 1560 proponet.exe netsh.exe PID 1560 wrote to memory of 4956 1560 proponet.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
proponet.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 proponet.exe -
outlook_win_path 1 IoCs
Processes:
proponet.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 proponet.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\proponet.exe"C:\Users\Admin\AppData\Local\Temp\proponet.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\proponet.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1560-131-0x0000000000000000-mapping.dmp
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memory/1560-132-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1560-133-0x0000000075080000-0x0000000075631000-memory.dmpFilesize
5.7MB
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memory/4500-130-0x0000000075080000-0x0000000075631000-memory.dmpFilesize
5.7MB
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memory/4956-134-0x0000000000000000-mapping.dmp