Analysis
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max time kernel
133s -
max time network
134s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
02-12-2021 12:05
Static task
static1
Behavioral task
behavioral1
Sample
Proforma_Invoice_CNIC109908_pdf.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
Proforma_Invoice_CNIC109908_pdf.exe
Resource
win10-en-20211104
General
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Target
Proforma_Invoice_CNIC109908_pdf.exe
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Size
463KB
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MD5
7a512365c3d8af5c082d0d6598969153
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SHA1
b2cb0b6042bda317a9be63128e612e4014ac4475
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SHA256
a13e7df444d6f5105bb519d6167b282aff4d3ba90801bada293d0ea83e2590d8
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SHA512
9738ccf59313d8f59dd7125db73fc6a9301a5499f9fb0d5b939c2212c006c3383e33c473d9f092a4f5b8f604ce6c847853ff4b918f75ec96b17455d934b0134e
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.huiijingco.com - Port:
587 - Username:
[email protected] - Password:
zVYrdtq4
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/608-134-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/608-135-0x0000000000436C3E-mapping.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:
Proforma_Invoice_CNIC109908_pdf.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Proforma_Invoice_CNIC109908_pdf.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Proforma_Invoice_CNIC109908_pdf.exe -
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:
Proforma_Invoice_CNIC109908_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma_Invoice_CNIC109908_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma_Invoice_CNIC109908_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma_Invoice_CNIC109908_pdf.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
Proforma_Invoice_CNIC109908_pdf.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum Proforma_Invoice_CNIC109908_pdf.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0 Proforma_Invoice_CNIC109908_pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Proforma_Invoice_CNIC109908_pdf.exedescription pid process target process PID 3708 set thread context of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exeProforma_Invoice_CNIC109908_pdf.exepid process 3956 powershell.exe 608 Proforma_Invoice_CNIC109908_pdf.exe 608 Proforma_Invoice_CNIC109908_pdf.exe 3956 powershell.exe 3956 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exeProforma_Invoice_CNIC109908_pdf.exedescription pid process Token: SeDebugPrivilege 3956 powershell.exe Token: SeDebugPrivilege 608 Proforma_Invoice_CNIC109908_pdf.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
Proforma_Invoice_CNIC109908_pdf.exedescription pid process target process PID 3708 wrote to memory of 3956 3708 Proforma_Invoice_CNIC109908_pdf.exe powershell.exe PID 3708 wrote to memory of 3956 3708 Proforma_Invoice_CNIC109908_pdf.exe powershell.exe PID 3708 wrote to memory of 3956 3708 Proforma_Invoice_CNIC109908_pdf.exe powershell.exe PID 3708 wrote to memory of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe PID 3708 wrote to memory of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe PID 3708 wrote to memory of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe PID 3708 wrote to memory of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe PID 3708 wrote to memory of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe PID 3708 wrote to memory of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe PID 3708 wrote to memory of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe PID 3708 wrote to memory of 608 3708 Proforma_Invoice_CNIC109908_pdf.exe Proforma_Invoice_CNIC109908_pdf.exe -
outlook_office_path 1 IoCs
Processes:
Proforma_Invoice_CNIC109908_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma_Invoice_CNIC109908_pdf.exe -
outlook_win_path 1 IoCs
Processes:
Proforma_Invoice_CNIC109908_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma_Invoice_CNIC109908_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Proforma_Invoice_CNIC109908_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Proforma_Invoice_CNIC109908_pdf.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3708 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Proforma_Invoice_CNIC109908_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3956
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C:\Users\Admin\AppData\Local\Temp\Proforma_Invoice_CNIC109908_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Proforma_Invoice_CNIC109908_pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:608
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