Analysis
- max time kernel
137s - max time network
138s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
07/10/2021, 15:21
General
- Target comprobante.pdf.bat.exe
- Size 1018KB
- Sample211007-srbhsacfa4
- SHA256 b5ca0ffeec2a4b6e9b5b4f2473991cf707fd2fded928c340309bcb1bc2ea7fe5
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.luisxtorres.com
-
Port
587
-
Username
-
Password
icui4cu2@@
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- 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 use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\comprobante.pdf.bat.exe"C:\Users\Admin\AppData\Local\Temp\comprobante.pdf.bat.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\comprobante.pdf.bat.exe"C:\Users\Admin\AppData\Local\Temp\comprobante.pdf.bat.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\comprobante.pdf.bat.exe"C:\Users\Admin\AppData\Local\Temp\comprobante.pdf.bat.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1860-122-0x00000000070D0000-0x00000000070D1000-memory.dmp
memory/1860-118-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
memory/1860-119-0x0000000004F70000-0x0000000004F71000-memory.dmp
memory/1860-120-0x0000000004F30000-0x000000000542E000-memory.dmp
memory/1860-121-0x0000000005400000-0x0000000005411000-memory.dmp
memory/1860-115-0x0000000000620000-0x0000000000621000-memory.dmp
memory/1860-123-0x0000000007470000-0x00000000074C8000-memory.dmp
memory/1860-117-0x0000000005430000-0x0000000005431000-memory.dmp
memory/2924-124-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2924-130-0x0000000005760000-0x0000000005C5E000-memory.dmp
memory/2924-132-0x0000000005970000-0x0000000005971000-memory.dmp
memory/2924-133-0x00000000064C0000-0x00000000064C1000-memory.dmp