Analysis
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max time kernel
91s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 11:09
Static task
static1
Behavioral task
behavioral1
Sample
INQUIRY.exe
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
INQUIRY.exe
Resource
win10v2004-20220414-en
windows10-2004_x64
0 signatures
0 seconds
General
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Target
INQUIRY.exe
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Size
1.4MB
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MD5
1883cc5a5f6d2ecd6755615958f9aa91
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SHA1
1b909e95504f780a6b5a34e3cbec7542468ce0d8
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SHA256
785b935be29af7c8a26e4080b1d4dc3ad93589d7175773b0b1fbad99165b24ef
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SHA512
1e7e4d1dae9d46ec79c54cf95a6ade1026208a620e7cb98ce633d073623a9b17d4768f8c981cacc41cf81ca0a1748875487272809765adafd01159ed8718d76f
Malware Config
Extracted
Credentials
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
K$pbkEK0
Extracted
Family
agenttesla
Credentials
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
K$pbkEK0
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/1428-131-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
Drops startup file 1 IoCs
Processes:
INQUIRY.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SgrmBroker.url INQUIRY.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INQUIRY.exedescription pid process target process PID 4972 set thread context of 1428 4972 INQUIRY.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
MSBuild.exepid process 1428 MSBuild.exe 1428 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 1428 MSBuild.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
INQUIRY.exepid process 4972 INQUIRY.exe 4972 INQUIRY.exe 4972 INQUIRY.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
INQUIRY.exepid process 4972 INQUIRY.exe 4972 INQUIRY.exe 4972 INQUIRY.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
MSBuild.exepid process 1428 MSBuild.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
INQUIRY.exedescription pid process target process PID 4972 wrote to memory of 1428 4972 INQUIRY.exe MSBuild.exe PID 4972 wrote to memory of 1428 4972 INQUIRY.exe MSBuild.exe PID 4972 wrote to memory of 1428 4972 INQUIRY.exe MSBuild.exe PID 4972 wrote to memory of 1428 4972 INQUIRY.exe MSBuild.exe PID 4972 wrote to memory of 1428 4972 INQUIRY.exe MSBuild.exe -
outlook_office_path 1 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1428-130-0x0000000000000000-mapping.dmp
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memory/1428-131-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1428-138-0x00000000745E0000-0x0000000074B91000-memory.dmpFilesize
5.7MB
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memory/4972-136-0x00000000039E0000-0x0000000003A6C000-memory.dmpFilesize
560KB
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memory/4972-137-0x00000000042B0000-0x000000000433C000-memory.dmpFilesize
560KB