Analysis
- max time kernel
75s - max time network
77s - platform
windows7_x64 - resource
win7-20230621-en - resource tags
- submitted
28/06/2023, 06:23
General
- Target DHL Receipt.exe
- Size 575KB
- Sample230628-g5gfeahd91
- SHA256 8150ceb72ebe958ee0424f42b26eb134281f42e7188a9f08ccc5025ac70bae24
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot6236742054:AAG-oo51GdoqP3KIGUOrUGqknahOuxan650/
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 1 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 use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL Receipt.exe"C:\Users\Admin\AppData\Local\Temp\DHL Receipt.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\DHL Receipt.exe"C:\Users\Admin\AppData\Local\Temp\DHL Receipt.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\DHL Receipt.exe"C:\Users\Admin\AppData\Local\Temp\DHL Receipt.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- 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/588-67-0x0000000000400000-0x0000000000430000-memory.dmp
memory/588-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/588-72-0x0000000004D90000-0x0000000004DD0000-memory.dmp
memory/588-70-0x0000000004D90000-0x0000000004DD0000-memory.dmp
memory/588-69-0x0000000000400000-0x0000000000430000-memory.dmp
memory/588-65-0x0000000000400000-0x0000000000430000-memory.dmp
memory/588-60-0x0000000000400000-0x0000000000430000-memory.dmp
memory/588-63-0x0000000000400000-0x0000000000430000-memory.dmp
memory/588-62-0x0000000000400000-0x0000000000430000-memory.dmp
memory/588-61-0x0000000000400000-0x0000000000430000-memory.dmp
memory/1536-55-0x0000000004E20000-0x0000000004E60000-memory.dmp
memory/1536-59-0x0000000005230000-0x000000000529A000-memory.dmp
memory/1536-54-0x0000000000220000-0x00000000002B6000-memory.dmp
memory/1536-58-0x0000000000320000-0x000000000032C000-memory.dmp
memory/1536-57-0x0000000004E20000-0x0000000004E60000-memory.dmp
memory/1536-56-0x0000000000210000-0x000000000021C000-memory.dmp