Analysis
- max time kernel
111s - max time network
112s - platform
windows10_x64 - resource
win10v200722 - submitted
14/09/2020, 05:56
General
- Target 906e5190816f545d0a3f9d416d8e1706.exe
- Size 1.2MB
- Sample200914-45v5cqa33a
- SHA256 33116366ba07e00a86a84e5de1a4f0b39c9af17f5c777111f61b4b02b638e5e6
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.b.hostedemail.com
-
Port
587
-
Username
-
Password
Malaysia147
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
- 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 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 19 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\906e5190816f545d0a3f9d416d8e1706.exe"C:\Users\Admin\AppData\Local\Temp\906e5190816f545d0a3f9d416d8e1706.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v nsmu /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\ndsg.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\reg.exeREG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v nsmu /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\ndsg.exe"3⤵
- Adds Run key to start application
-
-
-
C:\Users\Admin\ndsg.exe"C:\Users\Admin\ndsg.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"3⤵
- Executes dropped EXE
- 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
Loading Replay Monitor...
Downloads
memory/2304-30-0x0000000005D40000-0x0000000005D41000-memory.dmp
memory/2304-28-0x00000000050D0000-0x00000000050D1000-memory.dmp
memory/2304-27-0x0000000004C20000-0x0000000004C21000-memory.dmp
memory/2304-26-0x0000000004A20000-0x0000000004A21000-memory.dmp
memory/2304-23-0x0000000000430000-0x0000000000496000-memory.dmp
memory/2304-22-0x0000000074000000-0x00000000746EE000-memory.dmp
memory/3004-17-0x0000000005C40000-0x0000000005C43000-memory.dmp
memory/3004-11-0x0000000074000000-0x00000000746EE000-memory.dmp
memory/3888-0-0x0000000074000000-0x00000000746EE000-memory.dmp
memory/3888-5-0x0000000005390000-0x0000000005391000-memory.dmp
memory/3888-4-0x00000000057B0000-0x00000000057B1000-memory.dmp
memory/3888-3-0x00000000023B0000-0x00000000023BB000-memory.dmp
memory/3888-1-0x0000000000180000-0x0000000000181000-memory.dmp