Analysis
- max time kernel
122s - max time network
151s - platform
windows7_x64 - resource
win7-en-20210920 - submitted
14/10/2021, 17:03
General
- Target yceyDfUgt96DpLL.exe
- Size 399KB
- Sample211014-vkn7eaagfn
- SHA256 252000fc9c9a045eaf95df97586560bdd0c54dccb2de64fe2197d0a4b4069b0b
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.lahaciendamontericogrande.com.pe
-
Port
587
-
Username
-
Password
e$$
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 5 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\yceyDfUgt96DpLL.exe"C:\Users\Admin\AppData\Local\Temp\yceyDfUgt96DpLL.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\yceyDfUgt96DpLL.exe"C:\Users\Admin\AppData\Local\Temp\yceyDfUgt96DpLL.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1084-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1084-68-0x0000000004B41000-0x0000000004B42000-memory.dmp
memory/1084-61-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1084-65-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1084-59-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1084-63-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1084-67-0x0000000004B40000-0x0000000004B41000-memory.dmp
memory/1084-60-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1696-53-0x00000000002D0000-0x00000000002D1000-memory.dmp
memory/1696-55-0x00000000757B1000-0x00000000757B3000-memory.dmp
memory/1696-58-0x00000000047C0000-0x0000000004818000-memory.dmp
memory/1696-57-0x0000000000710000-0x0000000000715000-memory.dmp
memory/1696-56-0x0000000004C80000-0x0000000004C81000-memory.dmp