Analysis
- max time kernel
44s - max time network
112s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 19:30
General
- Target Request For Quotation.pdf.exe
- Size 808KB
- Sample201109-m5d3tk6mr6
- SHA256 460fa5b8dd75116e68328d16996e31acbdb17183d127bc535a86df01889bd08f
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
Loverboy123
Extracted
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agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
Loverboy123
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops startup file 1 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Request For Quotation.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Request For Quotation.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\notepad.exe"C:\Windows\system32\notepad.exe"2⤵
- Drops startup file
-
-
C:\Users\Admin\AppData\Local\Temp\Request For Quotation.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Request For Quotation.pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/4988-1-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/4988-3-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/4988-4-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/4988-5-0x00000000006B0000-0x0000000000700000-memory.dmp
memory/4988-6-0x00000000005E2000-0x00000000005E3000-memory.dmp