Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
07/06/2024, 01:34
General
- Target 48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc.exe
- Size 706KB
- Sample240607-by8cnagd89
- SHA256 48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.psgrasa.ir
-
Port
587
-
Username
-
Password
mahsa730101
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.psgrasa.ir
-
Port
587
-
Username
-
Password
mahsa730101
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- 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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc.exe"C:\Users\Admin\AppData\Local\Temp\48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc.exe"C:\Users\Admin\AppData\Local\Temp\48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
48c7311341af01dfa4d01d6000fb17d6956d6607f2714bb88bba2f8ca0a93fbc.exe.log
memory/4556-11-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4556-20-0x0000000074A50000-0x0000000075200000-memory.dmp
memory/4556-19-0x0000000006F60000-0x0000000006FB0000-memory.dmp
memory/4556-16-0x0000000005A00000-0x0000000005A66000-memory.dmp
memory/4556-17-0x0000000074A50000-0x0000000075200000-memory.dmp
memory/4556-15-0x0000000074A50000-0x0000000075200000-memory.dmp
memory/4856-5-0x0000000074A50000-0x0000000075200000-memory.dmp
memory/4856-7-0x0000000005EA0000-0x0000000005EAE000-memory.dmp
memory/4856-9-0x0000000006D60000-0x0000000006DE4000-memory.dmp
memory/4856-8-0x0000000005F50000-0x0000000005F60000-memory.dmp
memory/4856-6-0x0000000005E60000-0x0000000005E76000-memory.dmp
memory/4856-4-0x0000000005A30000-0x0000000005A3A000-memory.dmp
memory/4856-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp
memory/4856-2-0x0000000005F80000-0x0000000006524000-memory.dmp
memory/4856-14-0x0000000074A50000-0x0000000075200000-memory.dmp
memory/4856-10-0x000000000ABF0000-0x000000000AC8C000-memory.dmp
memory/4856-3-0x0000000005A70000-0x0000000005B02000-memory.dmp
memory/4856-1-0x0000000000F80000-0x0000000001034000-memory.dmp