Analysis
- max time kernel
145s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
13/01/2023, 14:25
General
- Target obizx.exe
- Size 550KB
- Sample230113-rrae2she78
- SHA256 564e748a2164cc70ec2c77d9830e301dedc3439f165fd8cc798bbd53fa168862
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
- 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: EnumeratesProcesses 3 IoCs
- 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\obizx.exe"C:\Users\Admin\AppData\Local\Temp\obizx.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ndmppks.exe"C:\Users\Admin\AppData\Local\Temp\ndmppks.exe" C:\Users\Admin\AppData\Local\Temp\iepcycqig.q2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ndmppks.exe"C:\Users\Admin\AppData\Local\Temp\ndmppks.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- 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
iepcycqig.q
ndmppks.exe
ndmppks.exe
ndmppks.exe
qgrjl.ism
memory/3524-139-0x00000000049B0000-0x0000000004F54000-memory.dmp
memory/3524-140-0x0000000000400000-0x0000000000449000-memory.dmp
memory/3524-141-0x0000000004FB0000-0x000000000504C000-memory.dmp
memory/3524-142-0x00000000059A0000-0x0000000005A06000-memory.dmp
memory/3524-143-0x00000000062C0000-0x0000000006352000-memory.dmp
memory/3524-144-0x0000000006530000-0x0000000006580000-memory.dmp
memory/3524-145-0x00000000065C0000-0x00000000065CA000-memory.dmp