Analysis
- max time kernel
135s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
12/06/2023, 09:38
General
- Target dc3631d8ee7b78d238da3818d231b5f8a9cb1b3a6540643b792d1fc3e9a7ab62.exe
- Size 168KB
- Sample230612-ll3azsbc28
- SHA256 dc3631d8ee7b78d238da3818d231b5f8a9cb1b3a6540643b792d1fc3e9a7ab62
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
wkrd%Jw9
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
wkrd%Jw9
-
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 behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dc3631d8ee7b78d238da3818d231b5f8a9cb1b3a6540643b792d1fc3e9a7ab62.exe"C:\Users\Admin\AppData\Local\Temp\dc3631d8ee7b78d238da3818d231b5f8a9cb1b3a6540643b792d1fc3e9a7ab62.exe"1⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1640-133-0x0000000000670000-0x00000000006A0000-memory.dmp
memory/1640-134-0x00000000055F0000-0x0000000005B94000-memory.dmp
memory/1640-135-0x0000000005040000-0x00000000050A6000-memory.dmp
memory/1640-136-0x00000000051E0000-0x00000000051F0000-memory.dmp
memory/1640-138-0x0000000006800000-0x0000000006850000-memory.dmp
memory/1640-139-0x0000000006A20000-0x0000000006BE2000-memory.dmp
memory/1640-146-0x00000000068F0000-0x000000000698C000-memory.dmp
memory/1640-147-0x0000000006C90000-0x0000000006D22000-memory.dmp
memory/1640-148-0x00000000069E0000-0x00000000069EA000-memory.dmp
memory/1640-149-0x00000000051E0000-0x00000000051F0000-memory.dmp