Analysis
- max time kernel
143s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20230831-en - resource tags
- submitted
05/09/2023, 11:31
General
- Target SOA 023.exe
- Size 405KB
- Sample230905-nmp36afa8x
- SHA256 466e9cff3817e503364feb17b63dede82666d976d13f91d1a1bc8bfb97d1357d
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 2 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).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 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\SOA 023.exe"C:\Users\Admin\AppData\Local\Temp\SOA 023.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\xwmwofimm.exe"C:\Users\Admin\AppData\Local\Temp\xwmwofimm.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\xwmwofimm.exe"C:\Users\Admin\AppData\Local\Temp\xwmwofimm.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
iafwh.iq
xwmwofimm.exe
xwmwofimm.exe
xwmwofimm.exe
memory/892-5-0x0000000001670000-0x0000000001672000-memory.dmp
memory/2008-15-0x0000000005220000-0x0000000005230000-memory.dmp
memory/2008-17-0x00000000057E0000-0x0000000005D84000-memory.dmp
memory/2008-10-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2008-13-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2008-14-0x0000000073A00000-0x00000000741B0000-memory.dmp
memory/2008-8-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2008-16-0x0000000005220000-0x0000000005230000-memory.dmp
memory/2008-11-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2008-18-0x0000000005220000-0x0000000005230000-memory.dmp
memory/2008-19-0x00000000053E0000-0x0000000005446000-memory.dmp
memory/2008-20-0x0000000006840000-0x0000000006890000-memory.dmp
memory/2008-21-0x0000000006930000-0x00000000069C2000-memory.dmp
memory/2008-22-0x00000000068C0000-0x00000000068CA000-memory.dmp
memory/2008-23-0x0000000073A00000-0x00000000741B0000-memory.dmp
memory/2008-24-0x0000000005220000-0x0000000005230000-memory.dmp
memory/2008-25-0x0000000005220000-0x0000000005230000-memory.dmp