Analysis
- max time kernel
143s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
17/06/2023, 05:44
General
- Target snr.exe
- Size 298KB
- Sample230617-ge513saa71
- SHA256 1445df50c20bc522a9a3a27e89e5b14004b1cb208cc72073e3f8d7ada1e7f415
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Loads dropped DLL 1 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).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\snr.exe"C:\Users\Admin\AppData\Local\Temp\snr.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\snr.exe"C:\Users\Admin\AppData\Local\Temp\snr.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
buryqyjq.dll
memory/4120-140-0x0000000003170000-0x0000000003172000-memory.dmp
memory/4900-141-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4900-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4900-143-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4900-145-0x0000000004920000-0x0000000004930000-memory.dmp
memory/4900-146-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4900-147-0x0000000004990000-0x0000000004F34000-memory.dmp
memory/4900-148-0x0000000004FB0000-0x0000000005016000-memory.dmp
memory/4900-149-0x0000000004920000-0x0000000004930000-memory.dmp
memory/4900-150-0x0000000004920000-0x0000000004930000-memory.dmp
memory/4900-151-0x0000000004920000-0x0000000004930000-memory.dmp
memory/4900-152-0x0000000005CD0000-0x0000000005D20000-memory.dmp
memory/4900-153-0x0000000005D20000-0x0000000005EE2000-memory.dmp
memory/4900-154-0x0000000005F00000-0x0000000005F92000-memory.dmp
memory/4900-155-0x0000000006100000-0x000000000610A000-memory.dmp
memory/4900-157-0x0000000004920000-0x0000000004930000-memory.dmp
memory/4900-158-0x0000000004920000-0x0000000004930000-memory.dmp
memory/4900-159-0x0000000004920000-0x0000000004930000-memory.dmp
memory/4900-160-0x0000000004920000-0x0000000004930000-memory.dmp