Analysis
- max time kernel
138s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-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
-
Protocol
smtp
-
Host
mail.medicalhome.com.pe
-
Port
587
-
Username
-
Password
MHinfo01
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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 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⤵
- Checks computer location settings
- 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
Loading Replay Monitor...
Downloads
IMG-20240528-WA0005[94].exe.log
__PSScriptPolicyTest_hkrn1rmp.p2f.ps1
memory/2184-10-0x000000000A4C0000-0x000000000A55C000-memory.dmp
memory/2184-1-0x0000000000C00000-0x0000000000CE4000-memory.dmp
memory/2184-4-0x00000000056B0000-0x00000000056BA000-memory.dmp
memory/2184-5-0x00000000746D0000-0x0000000074E80000-memory.dmp
memory/2184-6-0x0000000005950000-0x0000000005966000-memory.dmp
memory/2184-7-0x0000000005C90000-0x0000000005C9C000-memory.dmp
memory/2184-8-0x0000000005CA0000-0x0000000005CB0000-memory.dmp
memory/2184-9-0x00000000068B0000-0x0000000006968000-memory.dmp
memory/2184-0-0x00000000746DE000-0x00000000746DF000-memory.dmp
memory/2184-3-0x0000000005710000-0x00000000057A2000-memory.dmp
memory/2184-14-0x00000000746D0000-0x0000000074E80000-memory.dmp
memory/2184-2-0x0000000005CC0000-0x0000000006264000-memory.dmp
memory/2232-11-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2232-16-0x0000000005480000-0x00000000054E6000-memory.dmp
memory/2232-64-0x00000000746D0000-0x0000000074E80000-memory.dmp
memory/2232-17-0x00000000746D0000-0x0000000074E80000-memory.dmp
memory/2232-54-0x0000000006B30000-0x0000000006B80000-memory.dmp
memory/2232-15-0x00000000746D0000-0x0000000074E80000-memory.dmp
memory/2360-21-0x00000000746D0000-0x0000000074E80000-memory.dmp
memory/2360-51-0x0000000007FD0000-0x000000000864A000-memory.dmp
memory/2360-23-0x0000000005F80000-0x0000000005FE6000-memory.dmp
memory/2360-22-0x0000000005EE0000-0x0000000005F02000-memory.dmp
memory/2360-33-0x0000000006060000-0x00000000063B4000-memory.dmp
memory/2360-34-0x0000000006660000-0x000000000667E000-memory.dmp
memory/2360-35-0x0000000006700000-0x000000000674C000-memory.dmp
memory/2360-38-0x0000000007820000-0x0000000007852000-memory.dmp
memory/2360-39-0x0000000070350000-0x000000007039C000-memory.dmp
memory/2360-49-0x0000000006C40000-0x0000000006C5E000-memory.dmp
memory/2360-50-0x0000000007860000-0x0000000007903000-memory.dmp
memory/2360-20-0x00000000057B0000-0x0000000005DD8000-memory.dmp
memory/2360-52-0x0000000007980000-0x000000000799A000-memory.dmp
memory/2360-53-0x00000000079F0000-0x00000000079FA000-memory.dmp
memory/2360-55-0x0000000007C00000-0x0000000007C96000-memory.dmp
memory/2360-19-0x00000000746D0000-0x0000000074E80000-memory.dmp
memory/2360-56-0x0000000007B80000-0x0000000007B91000-memory.dmp
memory/2360-57-0x0000000007BB0000-0x0000000007BBE000-memory.dmp
memory/2360-58-0x0000000007BC0000-0x0000000007BD4000-memory.dmp
memory/2360-59-0x0000000007CC0000-0x0000000007CDA000-memory.dmp
memory/2360-60-0x0000000007CA0000-0x0000000007CA8000-memory.dmp
memory/2360-63-0x00000000746D0000-0x0000000074E80000-memory.dmp
memory/2360-18-0x0000000005090000-0x00000000050C6000-memory.dmp