Analysis
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max time kernel
132s -
max time network
123s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
19-10-2021 06:07
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Inquiry_pdf.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
Purchase Inquiry_pdf.exe
Resource
win10-en-20211014
General
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Target
Purchase Inquiry_pdf.exe
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Size
588KB
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MD5
a2c76f1d92fa89671867f90986a86a87
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SHA1
856585e784b7280d136b8129553aa0ad92a8ea3d
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SHA256
55aed03e89170a5d23ecff52a4f5a8ea81fa921aa37d19c3d807c7b2078cf3a2
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SHA512
2532fb9a3a29e473d3b5d33eae522c075b5f4a9ab77f1e8937901834c0bfb9beaf1b1e0d3bb25d9fb0ffb3bfaf9b1b3c3c4dce64e2a9be1c8f309721c2d457f4
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot2046248941:AAG5Z0PyWwtApmPaysBm59voK10ec9Rgnaw/sendDocument
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/3808-124-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/3808-125-0x0000000000436D2E-mapping.dmp family_agenttesla behavioral2/memory/3808-131-0x00000000057B0000-0x0000000005CAE000-memory.dmp family_agenttesla -
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:
Purchase Inquiry_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Inquiry_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Inquiry_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Inquiry_pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Purchase Inquiry_pdf.exedescription pid process target process PID 2052 set thread context of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Purchase Inquiry_pdf.exepid process 3808 Purchase Inquiry_pdf.exe 3808 Purchase Inquiry_pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Purchase Inquiry_pdf.exedescription pid process Token: SeDebugPrivilege 3808 Purchase Inquiry_pdf.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Purchase Inquiry_pdf.exedescription pid process target process PID 2052 wrote to memory of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe PID 2052 wrote to memory of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe PID 2052 wrote to memory of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe PID 2052 wrote to memory of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe PID 2052 wrote to memory of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe PID 2052 wrote to memory of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe PID 2052 wrote to memory of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe PID 2052 wrote to memory of 3808 2052 Purchase Inquiry_pdf.exe Purchase Inquiry_pdf.exe -
outlook_office_path 1 IoCs
Processes:
Purchase Inquiry_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Inquiry_pdf.exe -
outlook_win_path 1 IoCs
Processes:
Purchase Inquiry_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Inquiry_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2052 -
C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry_pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3808
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078