Analysis
- max time kernel
147s - max time network
147s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:57
General
- Target Doc_767467JUNE2020.exe
- Size 450KB
- Sample201109-jgdsd1n9d2
- SHA256 0189ad2e08f8bb4c487e31502a7e86ccf2bfaba40fda638f316cb5c9ca80d767
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.privateemail.com
-
Port
587
-
Username
-
Password
71c7eb1f8baa88
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.privateemail.com
-
Port
587
-
Username
-
Password
71c7eb1f8baa88
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Doc_767467JUNE2020.exe"C:\Users\Admin\AppData\Local\Temp\Doc_767467JUNE2020.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\xTJtyDiEBv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp924E.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Doc_767467JUNE2020.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Doc_767467JUNE2020.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/732-5-0x0000000004AA0000-0x0000000004AA1000-memory.dmp
memory/732-1-0x0000000000040000-0x0000000000041000-memory.dmp
memory/732-0-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/732-6-0x0000000004FD0000-0x0000000005022000-memory.dmp
memory/732-7-0x0000000005670000-0x0000000005671000-memory.dmp
memory/732-3-0x00000000048F0000-0x00000000048F1000-memory.dmp
memory/732-4-0x00000000021F0000-0x00000000021FB000-memory.dmp
memory/1812-10-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1812-13-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/1812-18-0x0000000005640000-0x0000000005641000-memory.dmp
memory/1812-19-0x0000000005BE0000-0x0000000005BE1000-memory.dmp
memory/1812-21-0x00000000064D0000-0x00000000064D1000-memory.dmp