Analysis
- max time kernel
137s - max time network
122s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
22/01/2022, 07:51
General
- Target 164731fa1305f4361d2b031b065a0bcd.exe
- Size 874KB
- Sample220122-jptrxaabf8
- SHA256 bf355b1a895bb65ab02c1b446ccb192b6d44dc337dd6bdfca97fdb0c2751f28c
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
milax.tk
-
Port
587
-
Username
-
Password
7213575aceACE@#$
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\164731fa1305f4361d2b031b065a0bcd.exe"C:\Users\Admin\AppData\Local\Temp\164731fa1305f4361d2b031b065a0bcd.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\164731fa1305f4361d2b031b065a0bcd.exe"C:\Users\Admin\AppData\Local\Temp\164731fa1305f4361d2b031b065a0bcd.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/544-63-0x0000000000400000-0x000000000043C000-memory.dmp
memory/544-59-0x0000000000400000-0x000000000043C000-memory.dmp
memory/544-60-0x0000000000400000-0x000000000043C000-memory.dmp
memory/544-61-0x0000000000400000-0x000000000043C000-memory.dmp
memory/544-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/544-64-0x0000000000400000-0x000000000043C000-memory.dmp
memory/544-65-0x0000000004A70000-0x0000000004A71000-memory.dmp
memory/544-67-0x0000000004A71000-0x0000000004A72000-memory.dmp
memory/1580-55-0x00000000754B1000-0x00000000754B3000-memory.dmp
memory/1580-56-0x0000000004F10000-0x0000000004F11000-memory.dmp
memory/1580-57-0x0000000000380000-0x000000000038A000-memory.dmp
memory/1580-58-0x0000000004F50000-0x0000000004FC0000-memory.dmp
memory/1580-54-0x0000000010090000-0x0000000010170000-memory.dmp