Analysis
- max time kernel
95s - max time network
112s - platform
windows10_x64 - resource
win10v20201028 - submitted
26/02/2021, 13:42
General
- Target INVOICE_PRFpdf.exe
- Size 345KB
- Sample210226-6tpwd6raw2
- SHA256 95c008fdb0ff81d4b148fac86341f08e5ee8dc036b4f4a1a6d4140c98ae2a136
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 1 IoCs
- Loads dropped DLL 2 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\INVOICE_PRFpdf.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE_PRFpdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\INVOICE_PRFpdf.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE_PRFpdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/788-6-0x0000000000A70000-0x0000000000A71000-memory.dmp
memory/788-5-0x0000000000400000-0x000000000044B000-memory.dmp
memory/788-7-0x0000000000A71000-0x0000000000A72000-memory.dmp
memory/788-9-0x0000000000A77000-0x0000000000A78000-memory.dmp
memory/788-8-0x0000000000A72000-0x0000000000A74000-memory.dmp
memory/788-10-0x0000000000A78000-0x0000000000A79000-memory.dmp
memory/788-11-0x0000000000A7D000-0x0000000000A7F000-memory.dmp