Analysis
- max time kernel
98s - max time network
97s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/12/2020, 09:14
General
- Target dhl.exe
- Size 440KB
- Sample201209-53cda68896
- SHA256 84afce79b516a2535b4f063e9dd9aef84aa6288bdc65c4fa5dbbba0bc06727ec
Malware Config
Extracted
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agenttesla
-
Protocol
smtp
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Host
smtp.yandex.ru
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Port
587
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Username
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Password
brillium360
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 5 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dhl.exe"C:\Users\Admin\AppData\Local\Temp\dhl.exe"1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dhl.exe"C:\Users\Admin\AppData\Local\Temp\dhl.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\dhl.exe"C:\Users\Admin\AppData\Local\Temp\dhl.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dhl.exe"C:\Users\Admin\AppData\Local\Temp\dhl.exe"3⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3968-5-0x0000000002A40000-0x0000000002A8C000-memory.dmp
memory/4048-8-0x0000000004F10000-0x0000000004F46000-memory.dmp
memory/4048-6-0x0000000000400000-0x000000000044C000-memory.dmp
memory/4048-7-0x0000000073EB0000-0x000000007459E000-memory.dmp
memory/4048-3-0x0000000000400000-0x000000000044C000-memory.dmp
memory/4048-10-0x00000000054D0000-0x00000000054D1000-memory.dmp
memory/4048-11-0x0000000005170000-0x0000000005171000-memory.dmp
memory/4048-12-0x0000000005F00000-0x0000000005F01000-memory.dmp
memory/4048-13-0x0000000005FA0000-0x0000000005FA1000-memory.dmp
memory/4048-14-0x0000000006910000-0x0000000006911000-memory.dmp
memory/4048-15-0x0000000000E70000-0x0000000000E71000-memory.dmp