Analysis
- max time kernel
143s - max time network
142s - platform
windows10_x64 - resource
win10v20201028 - submitted
24/12/2020, 09:24
General
- Target Verify Email.exe
- Size 539KB
- Sample201224-sgaqf4gg4j
- SHA256 6116ef2b4b628a4f3ded1e531f7a08a62310d2d0644979d301c03836fe33ab1f
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
PfV^BQW2
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- 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.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Verify Email.exe"C:\Users\Admin\AppData\Local\Temp\Verify Email.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Verify Email.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Verify Email.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/648-9-0x0000000008590000-0x0000000008594000-memory.dmp
memory/648-5-0x00000000055E0000-0x00000000055E1000-memory.dmp
memory/648-6-0x0000000004FE0000-0x0000000004FE1000-memory.dmp
memory/648-7-0x0000000004FC0000-0x0000000004FC1000-memory.dmp
memory/648-8-0x00000000085D0000-0x00000000085D1000-memory.dmp
memory/648-2-0x00000000730E0000-0x00000000737CE000-memory.dmp
memory/648-10-0x0000000008770000-0x00000000087C5000-memory.dmp
memory/648-3-0x0000000000700000-0x0000000000701000-memory.dmp
memory/2172-11-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2172-14-0x00000000730E0000-0x00000000737CE000-memory.dmp
memory/2172-19-0x0000000005950000-0x0000000005951000-memory.dmp
memory/2172-20-0x00000000064C0000-0x00000000064C1000-memory.dmp