Analysis
- max time kernel
61s - max time network
124s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
24/02/2023, 10:08
General
- Target proforma Invoice.exe
- Size 805KB
- Sample230224-l58bcach2y
- SHA256 0994d529e4126e53aa48caf2276a84cdaa58a882635069ff9ef3ec16e262a8b6
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.aliyvun.com
-
Port
587
-
Username
-
Password
ig#GXd!2
-
Email to
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 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\proforma Invoice.exe"C:\Users\Admin\AppData\Local\Temp\proforma Invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\proforma Invoice.exe"C:\Users\Admin\AppData\Local\Temp\proforma Invoice.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- 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
proforma Invoice.exe.log
memory/404-136-0x0000000004D30000-0x0000000004D3A000-memory.dmp
memory/404-134-0x00000000052B0000-0x0000000005854000-memory.dmp
memory/404-133-0x00000000002D0000-0x000000000039E000-memory.dmp
memory/404-137-0x0000000005860000-0x0000000005A06000-memory.dmp
memory/404-138-0x0000000004EE0000-0x0000000004EF0000-memory.dmp
memory/404-139-0x0000000004EE0000-0x0000000004EF0000-memory.dmp
memory/404-140-0x0000000007BF0000-0x0000000007C8C000-memory.dmp
memory/404-135-0x0000000004DA0000-0x0000000004E32000-memory.dmp
memory/2360-141-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2360-144-0x00000000052B0000-0x0000000005316000-memory.dmp
memory/2360-145-0x0000000005400000-0x0000000005410000-memory.dmp
memory/2360-147-0x0000000006F00000-0x0000000006F50000-memory.dmp
memory/2360-148-0x0000000007120000-0x00000000072E2000-memory.dmp
memory/2360-149-0x0000000005400000-0x0000000005410000-memory.dmp