Analysis
- max time kernel
72s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
27/10/2022, 08:32
General
- Target ef8019793102db8e50fde345e01b8481.exe
- Size 1.0MB
- Sample221027-kfas4sbee9
- SHA256 eaa91b97199a371d6361bc0ca5cb757d46c25b732cf7331bcd4e3bcdb4bb6e9a
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.hmbgrope.com
-
Port
587
-
Username
-
Password
Nagod8135
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ef8019793102db8e50fde345e01b8481.exe"C:\Users\Admin\AppData\Local\Temp\ef8019793102db8e50fde345e01b8481.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ef8019793102db8e50fde345e01b8481.exe"C:\Users\Admin\AppData\Local\Temp\ef8019793102db8e50fde345e01b8481.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- 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
ef8019793102db8e50fde345e01b8481.exe.log
memory/1436-132-0x0000000000A40000-0x0000000000B50000-memory.dmp
memory/1436-133-0x0000000005B10000-0x00000000060B4000-memory.dmp
memory/1436-134-0x0000000005560000-0x00000000055F2000-memory.dmp
memory/1436-135-0x0000000005510000-0x000000000551A000-memory.dmp
memory/1436-136-0x0000000007790000-0x000000000782C000-memory.dmp
memory/3692-138-0x0000000000400000-0x000000000043E000-memory.dmp
memory/3692-140-0x0000000005EF0000-0x0000000005F56000-memory.dmp
memory/3692-141-0x00000000086A0000-0x00000000086F0000-memory.dmp