Analysis
- max time kernel
134s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
01/06/2024, 01:50
General
- Target cbeea811df25ea3bda4ed2d8b965cfa8c135544d2ad0f4075047577739351e0a.exe
- Size 708KB
- Sample240601-b9p1fsed72
- SHA256 cbeea811df25ea3bda4ed2d8b965cfa8c135544d2ad0f4075047577739351e0a
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
tVNMUR%7
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
tVNMUR%7
-
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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 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.
- Looks up external IP address via web service 1 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 WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\cbeea811df25ea3bda4ed2d8b965cfa8c135544d2ad0f4075047577739351e0a.exe"C:\Users\Admin\AppData\Local\Temp\cbeea811df25ea3bda4ed2d8b965cfa8c135544d2ad0f4075047577739351e0a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\cbeea811df25ea3bda4ed2d8b965cfa8c135544d2ad0f4075047577739351e0a.exe"C:\Users\Admin\AppData\Local\Temp\cbeea811df25ea3bda4ed2d8b965cfa8c135544d2ad0f4075047577739351e0a.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
cbeea811df25ea3bda4ed2d8b965cfa8c135544d2ad0f4075047577739351e0a.exe.log
memory/1348-10-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1348-18-0x0000000074CA0000-0x0000000075450000-memory.dmp
memory/1348-17-0x00000000065E0000-0x0000000006630000-memory.dmp
memory/1348-16-0x0000000005090000-0x00000000050F6000-memory.dmp
memory/1348-15-0x0000000074CA0000-0x0000000075450000-memory.dmp
memory/1348-14-0x0000000074CA0000-0x0000000075450000-memory.dmp
memory/2996-8-0x0000000006040000-0x00000000060C4000-memory.dmp
memory/2996-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp
memory/2996-9-0x0000000009C90000-0x0000000009D2C000-memory.dmp
memory/2996-7-0x00000000050C0000-0x00000000050D0000-memory.dmp
memory/2996-6-0x00000000050A0000-0x00000000050B8000-memory.dmp
memory/2996-13-0x0000000074CA0000-0x0000000075450000-memory.dmp
memory/2996-5-0x0000000074CA0000-0x0000000075450000-memory.dmp
memory/2996-4-0x0000000004BB0000-0x0000000004BBA000-memory.dmp
memory/2996-3-0x0000000004BC0000-0x0000000004C52000-memory.dmp
memory/2996-2-0x00000000050D0000-0x0000000005674000-memory.dmp
memory/2996-1-0x0000000000100000-0x00000000001B4000-memory.dmp