Analysis
- max time kernel
136s - max time network
117s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
28/09/2021, 08:22
General
- Target 211913490 - BL.exe
- Size 550KB
- Sample210928-j9kpqsbbc7
- SHA256 c10e72609ceae12c610e6c58a706c5bea0f962951e8366a8f6dee3cc42d0addd
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.citechco.net
-
Port
587
-
Username
-
Password
Webana@321#
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Drops file in Drivers directory 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\211913490 - BL.exe"C:\Users\Admin\AppData\Local\Temp\211913490 - BL.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\211913490 - BL.exe"C:\Users\Admin\AppData\Local\Temp\211913490 - BL.exe"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2568-124-0x0000000006470000-0x00000000064A9000-memory.dmp
memory/2568-117-0x0000000005AC0000-0x0000000005AC1000-memory.dmp
memory/2568-119-0x0000000005610000-0x0000000005611000-memory.dmp
memory/2568-120-0x00000000055A0000-0x00000000055A1000-memory.dmp
memory/2568-121-0x0000000005860000-0x0000000005861000-memory.dmp
memory/2568-122-0x0000000005620000-0x000000000562E000-memory.dmp
memory/2568-118-0x0000000005660000-0x0000000005661000-memory.dmp
memory/2568-115-0x0000000000D30000-0x0000000000D31000-memory.dmp
memory/2568-123-0x0000000006300000-0x0000000006362000-memory.dmp
memory/3964-125-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3964-132-0x00000000055F0000-0x00000000055F1000-memory.dmp
memory/3964-133-0x00000000055C0000-0x00000000055C1000-memory.dmp
memory/3964-134-0x0000000006200000-0x0000000006201000-memory.dmp
memory/3964-137-0x00000000055F1000-0x00000000055F2000-memory.dmp