Analysis
- max time kernel
112s - max time network
112s - platform
windows10_x64 - resource
win10v20201028 - submitted
12/11/2020, 07:47
General
- Target P.O. #HBG00356.doc.exe
- Size 835KB
- Sample201112-m2wndecs6x
- SHA256 663bda7b869cefa47acc50bdba83a5fba3637ac2e26a113d3a6dff62595b7860
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
us2.smtp.mailhostbox.com
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Port
587
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Username
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Password
riches22@123456
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.
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lXOfydyxkQzTW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp28E5.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\P.O. #HBG00356.doc.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\P.O. #HBG00356.doc.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\P.O. #HBG00356.doc.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\P.O. #HBG00356.doc.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/500-9-0x0000000006F20000-0x0000000006F21000-memory.dmp
memory/500-0-0x0000000073190000-0x000000007387E000-memory.dmp
memory/500-4-0x00000000057F0000-0x00000000057F1000-memory.dmp
memory/500-5-0x00000000057B0000-0x00000000057B1000-memory.dmp
memory/500-6-0x0000000006720000-0x0000000006721000-memory.dmp
memory/500-7-0x0000000005BD0000-0x0000000005BE4000-memory.dmp
memory/500-3-0x0000000005CF0000-0x0000000005CF1000-memory.dmp
memory/500-1-0x0000000000D50000-0x0000000000D51000-memory.dmp
memory/500-8-0x0000000006DF0000-0x0000000006E7B000-memory.dmp
memory/2060-12-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2060-14-0x0000000073190000-0x000000007387E000-memory.dmp
memory/2060-19-0x0000000005710000-0x0000000005711000-memory.dmp
memory/2060-20-0x0000000005C10000-0x0000000005C11000-memory.dmp