Analysis
- max time kernel
135s - max time network
136s - platform
windows7_x64 - resource
win7v20201028 - submitted
12/11/2020, 07:47
General
- Target P.O. #HBG00356.doc.exe
- Size 835KB
- Sample201112-m2wndecs6x
- SHA256 663bda7b869cefa47acc50bdba83a5fba3637ac2e26a113d3a6dff62595b7860
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
riches22@123456
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\P.O. #HBG00356.doc.exe"C:\Users\Admin\AppData\Local\Temp\P.O. #HBG00356.doc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lXOfydyxkQzTW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE994.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\P.O. #HBG00356.doc.exe"{path}"2⤵
- 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/1080-0-0x0000000074CF0000-0x00000000753DE000-memory.dmp
memory/1080-1-0x00000000008B0000-0x00000000008B1000-memory.dmp
memory/1080-3-0x0000000000360000-0x0000000000374000-memory.dmp
memory/1080-4-0x0000000005300000-0x000000000538B000-memory.dmp
memory/1448-7-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1448-9-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1448-10-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1448-11-0x0000000074CF0000-0x00000000753DE000-memory.dmp