Analysis
- max time kernel
143s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
02/03/2023, 07:04
General
- Target PO-8730937.exe
- Size 310KB
- Sample230302-hvysdabe2t
- SHA256 79eba5d15aebead1738da8b9f85916fa3ebc922d34bc2ec2db2c33c60a50db1c
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 2 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 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). Likely ransomware behaviour.
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO-8730937.exe"C:\Users\Admin\AppData\Local\Temp\PO-8730937.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\akicu.exe"C:\Users\Admin\AppData\Local\Temp\akicu.exe" C:\Users\Admin\AppData\Local\Temp\qpmhfsd.ue2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\akicu.exe"C:\Users\Admin\AppData\Local\Temp\akicu.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
akicu.exe
akicu.exe
akicu.exe
mvwzrvwf.wss
qpmhfsd.ue
memory/2040-149-0x00000000059E0000-0x00000000059F0000-memory.dmp
memory/2040-151-0x00000000059E0000-0x00000000059F0000-memory.dmp
memory/2040-146-0x0000000000400000-0x0000000000441000-memory.dmp
memory/2040-147-0x0000000000400000-0x0000000000441000-memory.dmp
memory/2040-148-0x0000000005FA0000-0x0000000006544000-memory.dmp
memory/2040-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/2040-150-0x00000000059E0000-0x00000000059F0000-memory.dmp
memory/2040-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/2040-152-0x00000000059F0000-0x0000000005A56000-memory.dmp
memory/2040-153-0x0000000007160000-0x00000000071F2000-memory.dmp
memory/2040-154-0x00000000070A0000-0x00000000070AA000-memory.dmp
memory/2040-155-0x00000000073E0000-0x0000000007430000-memory.dmp
memory/2040-156-0x0000000007600000-0x00000000077C2000-memory.dmp
memory/2040-157-0x00000000059E0000-0x00000000059F0000-memory.dmp
memory/2040-158-0x00000000059E0000-0x00000000059F0000-memory.dmp
memory/2040-159-0x00000000059E0000-0x00000000059F0000-memory.dmp