Analysis
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max time kernel
43s -
max time network
37s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
29-01-2021 14:36
Static task
static1
Behavioral task
behavioral1
Sample
Over-due invoice_pdf.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
Over-due invoice_pdf.exe
Resource
win10v20201028
General
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Target
Over-due invoice_pdf.exe
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Size
26KB
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MD5
a6b0c18fb26a8c6eed21a2ceadb3bcb6
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SHA1
8b419602ffe57720dde8617b9061f6876c8835a1
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SHA256
41fc81a9ebcb9f6405555db22b71ca764939d1dbcf113e446418e3cb6d394184
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SHA512
ed0bdfe0a0053ac02b40952af9a4bd63f5d3b5a5684e3a0c26d6f77c83c5d365f7a9b2e8ca3fe69e11c6dd84f51f3e0961ccdffcf62ed27e95915d8c63834f2e
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.tpcdel.com - Port:
587 - Username:
[email protected] - Password:
EmlP@2018
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 behavioral1/memory/1552-6-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/1552-7-0x000000000044A95E-mapping.dmp family_agenttesla behavioral1/memory/1552-9-0x0000000000400000-0x0000000000450000-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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Over-due invoice_pdf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\ZozjABYW = "C:\\Users\\Admin\\AppData\\Roaming\\wPLpKMo\\UGxXf.exe" Over-due invoice_pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Over-due invoice_pdf.exedescription pid process target process PID 1044 set thread context of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Over-due invoice_pdf.exepid process 1552 Over-due invoice_pdf.exe 1552 Over-due invoice_pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Over-due invoice_pdf.exeOver-due invoice_pdf.exedescription pid process Token: SeDebugPrivilege 1044 Over-due invoice_pdf.exe Token: SeDebugPrivilege 1552 Over-due invoice_pdf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Over-due invoice_pdf.exepid process 1552 Over-due invoice_pdf.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
Over-due invoice_pdf.exedescription pid process target process PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe PID 1044 wrote to memory of 1552 1044 Over-due invoice_pdf.exe Over-due invoice_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Over-due invoice_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Over-due invoice_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Over-due invoice_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Over-due invoice_pdf.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1044-2-0x00000000745B0000-0x0000000074C9E000-memory.dmpFilesize
6.9MB
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memory/1044-3-0x0000000000910000-0x0000000000911000-memory.dmpFilesize
4KB
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memory/1044-4-0x0000000004B70000-0x0000000004B71000-memory.dmpFilesize
4KB
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memory/1044-5-0x00000000005B0000-0x0000000000601000-memory.dmpFilesize
324KB
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memory/1552-6-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1552-7-0x000000000044A95E-mapping.dmp
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memory/1552-8-0x00000000745B0000-0x0000000074C9E000-memory.dmpFilesize
6.9MB
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memory/1552-9-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1552-11-0x0000000004C70000-0x0000000004C71000-memory.dmpFilesize
4KB
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memory/1552-12-0x0000000004C71000-0x0000000004C72000-memory.dmpFilesize
4KB