Analysis
- max time kernel
128s - max time network
122s - platform
windows10_x64 - resource
win10v20201028 - submitted
10/12/2020, 20:27
General
- Target P.O.DECEMBER.2020.PDF.exe
- Size 727KB
- Sample201210-7frpg644hn
- SHA256 9fbc79d39607fa75a214552ebb132db779426add0ff8fa563cc33943e99cef65
Malware Config
Extracted
-
Protocol
smtp
-
Host
web2.changeip.com
-
Port
587
-
Username
-
Password
2*xaR!aKyovu
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
web2.changeip.com
-
Port
587
-
Username
-
Password
2*xaR!aKyovu
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 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\P.O.DECEMBER.2020.PDF.exe"C:\Users\Admin\AppData\Local\Temp\P.O.DECEMBER.2020.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JPhFviOYw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp98F5.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\P.O.DECEMBER.2020.PDF.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/1812-11-0x00000000057D0000-0x000000000585D000-memory.dmp
memory/1812-12-0x0000000005910000-0x0000000005911000-memory.dmp
memory/1812-7-0x000000000AF30000-0x000000000AF31000-memory.dmp
memory/1812-8-0x000000000AF20000-0x000000000AF21000-memory.dmp
memory/1812-9-0x000000000E8F0000-0x000000000E8F1000-memory.dmp
memory/1812-10-0x000000000E5C0000-0x000000000E5CE000-memory.dmp
memory/1812-2-0x0000000073300000-0x00000000739EE000-memory.dmp
memory/1812-6-0x000000000B350000-0x000000000B351000-memory.dmp
memory/1812-3-0x0000000000DE0000-0x0000000000DE1000-memory.dmp
memory/1812-5-0x0000000005720000-0x00000000057A9000-memory.dmp
memory/3608-17-0x0000000000400000-0x000000000045A000-memory.dmp
memory/3608-20-0x0000000073300000-0x00000000739EE000-memory.dmp
memory/3608-25-0x0000000005830000-0x0000000005831000-memory.dmp
memory/3608-26-0x00000000063D0000-0x00000000063D1000-memory.dmp