Analysis
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max time kernel
120s -
max time network
127s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
26-10-2021 10:17
Static task
static1
Behavioral task
behavioral1
Sample
PO300000003614645-pdf.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
PO300000003614645-pdf.exe
Resource
win10-en-20211014
General
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Target
PO300000003614645-pdf.exe
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Size
350KB
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MD5
b615a5e9f736d8ea0b9059b2626a97bc
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SHA1
9e8baec4860e815032adb261932cf7666a40c139
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SHA256
e8e134ada5fe4a1490659f0666bac7c63b95c051119438c43f94a09a54c75f45
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SHA512
8349b15120b036ac1eb4eb261b95eb257891527fbd0037ba7b8fc2e034446c2ceaa2a2f5954df87fb416be743fe4c95a984b296023f9a9771d246dd09a29fe66
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.fclbd.com - Port:
587 - Username:
[email protected] - Password:
abc@123@
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1660-62-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1660-63-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1660-64-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1660-65-0x000000000043765E-mapping.dmp family_agenttesla behavioral1/memory/1660-66-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
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:
PO300000003614645-pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO300000003614645-pdf.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO300000003614645-pdf.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO300000003614645-pdf.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PO300000003614645-pdf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\xepul = "C:\\Users\\Admin\\AppData\\Roaming\\xepul\\xepul.exe" PO300000003614645-pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO300000003614645-pdf.exedescription pid process target process PID 1888 set thread context of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
PO300000003614645-pdf.exePO300000003614645-pdf.exepid process 1888 PO300000003614645-pdf.exe 1888 PO300000003614645-pdf.exe 1888 PO300000003614645-pdf.exe 1660 PO300000003614645-pdf.exe 1660 PO300000003614645-pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PO300000003614645-pdf.exePO300000003614645-pdf.exedescription pid process Token: SeDebugPrivilege 1888 PO300000003614645-pdf.exe Token: SeDebugPrivilege 1660 PO300000003614645-pdf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO300000003614645-pdf.exepid process 1660 PO300000003614645-pdf.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
PO300000003614645-pdf.exedescription pid process target process PID 1888 wrote to memory of 580 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 580 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 580 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 580 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe PID 1888 wrote to memory of 1660 1888 PO300000003614645-pdf.exe PO300000003614645-pdf.exe -
outlook_office_path 1 IoCs
Processes:
PO300000003614645-pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO300000003614645-pdf.exe -
outlook_win_path 1 IoCs
Processes:
PO300000003614645-pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO300000003614645-pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO300000003614645-pdf.exe"C:\Users\Admin\AppData\Local\Temp\PO300000003614645-pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Users\Admin\AppData\Local\Temp\PO300000003614645-pdf.exeC:\Users\Admin\AppData\Local\Temp\PO300000003614645-pdf.exe2⤵PID:580
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C:\Users\Admin\AppData\Local\Temp\PO300000003614645-pdf.exeC:\Users\Admin\AppData\Local\Temp\PO300000003614645-pdf.exe2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1660
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