Analysis
- max time kernel
90s - max time network
122s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
27/10/2022, 17:11
General
- Target 9b611982fbdf03baf0b4f8857d552e5d.exe
- Size 883KB
- Sample221027-vqak7schb4
- SHA256 a63df56777dee301cd34280144b498d17c8e7c0ccf057224abf73cab1b220b68
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\9b611982fbdf03baf0b4f8857d552e5d.exe"C:\Users\Admin\AppData\Local\Temp\9b611982fbdf03baf0b4f8857d552e5d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\9b611982fbdf03baf0b4f8857d552e5d.exe"C:\Users\Admin\AppData\Local\Temp\9b611982fbdf03baf0b4f8857d552e5d.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
9b611982fbdf03baf0b4f8857d552e5d.exe.log
memory/536-138-0x0000000000400000-0x000000000043E000-memory.dmp
memory/536-140-0x0000000005980000-0x00000000059E6000-memory.dmp
memory/536-141-0x00000000086F0000-0x0000000008740000-memory.dmp
memory/4896-132-0x0000000000DF0000-0x0000000000ED2000-memory.dmp
memory/4896-133-0x0000000005E00000-0x00000000063A4000-memory.dmp
memory/4896-134-0x00000000058F0000-0x0000000005982000-memory.dmp
memory/4896-135-0x00000000058B0000-0x00000000058BA000-memory.dmp
memory/4896-136-0x0000000009200000-0x000000000929C000-memory.dmp