Analysis
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max time kernel
88s -
max time network
125s -
platform
windows10_x64 -
resource
win10 -
submitted
07-07-2020 09:20
Static task
static1
Behavioral task
behavioral1
Sample
Invoice_pdf.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
Invoice_pdf.exe
Resource
win10
General
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Target
Invoice_pdf.exe
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Size
552KB
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MD5
c72e293b8bc1a7a7e513fd4b43d75541
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SHA1
7a2328cb4c022b7cf996c1804af56b024ce15a98
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SHA256
f4b9349afed77764e8478c1ba283b708f7529c9afd4e047d75fe04233e7e4ddb
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SHA512
34ecd367b055ae15c8c2c44e24bdf391e4fff00fad5e95607cf17f184ed670ac8303e6daef65a98dc2f4d9b12ea09c4c1a4ce0f5188c6e86f680162600170f10
Malware Config
Extracted
Protocol: smtp- Host:
mail.gascuenca.es - Port:
587 - Username:
[email protected] - Password:
gasW204@Z7
Extracted
agenttesla
Protocol: smtp- Host:
mail.gascuenca.es - Port:
587 - Username:
[email protected] - Password:
gasW204@Z7
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/2540-0-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/2540-1-0x0000000000446B8E-mapping.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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Suspicious use of SetThreadContext 1 IoCs
Processes:
Invoice_pdf.exedescription pid process target process PID 3788 set thread context of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Invoice_pdf.exepid process 2540 Invoice_pdf.exe 2540 Invoice_pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Invoice_pdf.exedescription pid process Token: SeDebugPrivilege 2540 Invoice_pdf.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Invoice_pdf.exedescription pid process target process PID 3788 wrote to memory of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe PID 3788 wrote to memory of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe PID 3788 wrote to memory of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe PID 3788 wrote to memory of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe PID 3788 wrote to memory of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe PID 3788 wrote to memory of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe PID 3788 wrote to memory of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe PID 3788 wrote to memory of 2540 3788 Invoice_pdf.exe Invoice_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Invoice_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Invoice_pdf.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Invoice_pdf.exe.logMD5
3753b01eddc20f64178eaf3d55b5c146
SHA1ca50665940eb8519e1df0c1f185fb72a271c2a66
SHA25699096651b1d9b4a7562f56c8e42c06d1166f7f22a93816e2862317ada8154b37
SHA512566366e651e94fab25454fb0199508cd62a64723137b32fbd5bee531110403d9194b9a4fc053740c571a69e820c1c72e48d65fc3a5410a22b6ae9d2e55508bf3
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memory/2540-0-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/2540-1-0x0000000000446B8E-mapping.dmp