Analysis
- max time kernel
146s - max time network
34s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
03/05/2023, 10:57
General
- Target b56e5fb56140470cf635c8c82084e4d6.exe
- Size 282KB
- Sample230503-m19jaaed69
- SHA256 bcdcd135bc9ab91febe80a12ed83cf0d10e6f73aebff6d15af93966598ba8838
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5928295303:AAGuNoBPUTvSleTT4FySvjzDqvqzDvvy0hE/
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 3 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b56e5fb56140470cf635c8c82084e4d6.exe"C:\Users\Admin\AppData\Local\Temp\b56e5fb56140470cf635c8c82084e4d6.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rotft.exe"C:\Users\Admin\AppData\Local\Temp\rotft.exe" C:\Users\Admin\AppData\Local\Temp\ykbzjadiuo.f2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rotft.exe"C:\Users\Admin\AppData\Local\Temp\rotft.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
rotft.exe
rotft.exe
rotft.exe
rotft.exe
xldcmi.y
ykbzjadiuo.f
rotft.exe
rotft.exe
rotft.exe
memory/340-68-0x0000000000400000-0x0000000000441000-memory.dmp
memory/340-71-0x0000000000400000-0x0000000000441000-memory.dmp
memory/340-73-0x0000000000400000-0x0000000000441000-memory.dmp
memory/340-74-0x0000000000550000-0x0000000000580000-memory.dmp
memory/340-75-0x0000000004640000-0x0000000004680000-memory.dmp
memory/340-76-0x0000000004640000-0x0000000004680000-memory.dmp
memory/340-78-0x0000000004640000-0x0000000004680000-memory.dmp