Analysis
- max time kernel
122s - max time network
125s - platform
windows7_x64 - resource
win7-20230831-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
- Loads dropped DLL 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 9 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⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\xwmwofimm.exe"C:\Users\Admin\AppData\Local\Temp\xwmwofimm.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- 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
xwmwofimm.exe
xwmwofimm.exe
memory/1696-6-0x00000000000D0000-0x00000000000D2000-memory.dmp
memory/2612-11-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2612-15-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2612-16-0x0000000000460000-0x00000000004A2000-memory.dmp
memory/2612-17-0x0000000073AA0000-0x000000007418E000-memory.dmp
memory/2612-18-0x0000000000220000-0x0000000000260000-memory.dmp
memory/2612-19-0x0000000000220000-0x0000000000260000-memory.dmp
memory/2612-20-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2612-21-0x0000000073AA0000-0x000000007418E000-memory.dmp