Analysis
- max time kernel
122s - max time network
122s - platform
windows7_x64 - resource
win7-20240508-en - resource tags
- submitted
28/05/2024, 14:54
General
- Target IMG-20240528-WA0005[94].exe
- Size 903KB
- Sample240528-r9vhyaaf53
- SHA256 0374c34b60c4c677258f1813335bc64b39763d4db406eff8f4fbf5ddc2f5c7b1
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.medicalhome.com.pe
-
Port
587
-
Username
-
Password
MHinfo01
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\IMG-20240528-WA0005[94].exe"C:\Users\Admin\AppData\Local\Temp\IMG-20240528-WA0005[94].exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\IMG-20240528-WA0005[94].exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\IMG-20240528-WA0005[94].exe"C:\Users\Admin\AppData\Local\Temp\IMG-20240528-WA0005[94].exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/2184-0-0x000000007448E000-0x000000007448F000-memory.dmp
memory/2184-1-0x0000000000290000-0x0000000000374000-memory.dmp
memory/2184-2-0x0000000074480000-0x0000000074B6E000-memory.dmp
memory/2184-3-0x0000000000220000-0x0000000000236000-memory.dmp
memory/2184-4-0x0000000000380000-0x000000000038C000-memory.dmp
memory/2184-5-0x0000000000530000-0x0000000000540000-memory.dmp
memory/2184-6-0x0000000005130000-0x00000000051E8000-memory.dmp
memory/2184-19-0x0000000074480000-0x0000000074B6E000-memory.dmp
memory/2712-13-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2712-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2712-10-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2712-18-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2712-9-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2712-8-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2712-7-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2712-15-0x0000000000400000-0x0000000000476000-memory.dmp