Analysis
- max time kernel
117s - max time network
50s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
20/06/2024, 01:04
General
- Target 1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825.exe
- Size 960KB
- Sample240620-bfcs2azfmd
- SHA256 1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.groupmt.vn
-
Port
587
-
Username
-
Password
4j37SF2n8e
-
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 packed with SmartAssembly 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.
- 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\1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825.exe"C:\Users\Admin\AppData\Local\Temp\1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825.exe"C:\Users\Admin\AppData\Local\Temp\1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1524-10-0x0000000008F40000-0x0000000008F4C000-memory.dmp
memory/1524-1-0x00000000008B0000-0x00000000009A6000-memory.dmp
memory/1524-2-0x00000000059F0000-0x0000000005F94000-memory.dmp
memory/1524-3-0x0000000005390000-0x0000000005422000-memory.dmp
memory/1524-4-0x0000000005450000-0x000000000545A000-memory.dmp
memory/1524-5-0x00000000056C0000-0x000000000575C000-memory.dmp
memory/1524-6-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/1524-7-0x00000000064D0000-0x00000000069FC000-memory.dmp
memory/1524-9-0x00000000064C0000-0x00000000064C8000-memory.dmp
memory/1524-8-0x00000000064A0000-0x00000000064B2000-memory.dmp
memory/1524-12-0x0000000009440000-0x00000000094C2000-memory.dmp
memory/1524-11-0x0000000008F60000-0x0000000008FF2000-memory.dmp
memory/1524-0-0x000000007478E000-0x000000007478F000-memory.dmp
memory/1524-16-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/1588-15-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/1588-13-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1588-18-0x0000000005560000-0x00000000055C6000-memory.dmp
memory/1588-17-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/1588-19-0x0000000006350000-0x00000000063A0000-memory.dmp
memory/1588-20-0x0000000074780000-0x0000000074F30000-memory.dmp