Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
08/05/2023, 13:54
General
- Target proforma invoice#5577383.exe
- Size 546KB
- Sample230508-q7jszscg2v
- SHA256 5777e088b6df69cb6a38e324ff037a955ecbe8cd04a941407ebf7c09c51fc4ef
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.marintravellft.com
-
Port
587
-
Username
-
Password
k*IQlsZ7
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.marintravellft.com
-
Port
587
-
Username
-
Password
k*IQlsZ7
-
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 WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\proforma invoice#5577383.exe"C:\Users\Admin\AppData\Local\Temp\proforma invoice#5577383.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\proforma invoice#5577383.exe"C:\Users\Admin\AppData\Local\Temp\proforma invoice#5577383.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
proforma invoice#5577383.exe.log
memory/3372-136-0x0000000005D00000-0x0000000005EA6000-memory.dmp
memory/3372-134-0x0000000005F00000-0x00000000064A4000-memory.dmp
memory/3372-133-0x0000000000E30000-0x0000000000EBE000-memory.dmp
memory/3372-137-0x0000000003380000-0x000000000338A000-memory.dmp
memory/3372-138-0x0000000005B40000-0x0000000005B50000-memory.dmp
memory/3372-139-0x0000000005B40000-0x0000000005B50000-memory.dmp
memory/3372-140-0x0000000008940000-0x00000000089DC000-memory.dmp
memory/3372-135-0x0000000005950000-0x00000000059E2000-memory.dmp
memory/4748-141-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4748-144-0x0000000005440000-0x00000000054A6000-memory.dmp
memory/4748-145-0x0000000005590000-0x00000000055A0000-memory.dmp
memory/4748-147-0x00000000070A0000-0x00000000070F0000-memory.dmp
memory/4748-148-0x00000000072C0000-0x0000000007482000-memory.dmp
memory/4748-155-0x0000000005590000-0x00000000055A0000-memory.dmp