Analysis
- max time kernel
39s - max time network
56s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
13/06/2024, 01:02
General
- Target 079fa14ca79e70e3af541fcb3b7cbc67f4e3ce48321b46ac71df8e63d8ce5da9.exe
- Size 245KB
- Sample240613-bds28ssarl
- SHA256 079fa14ca79e70e3af541fcb3b7cbc67f4e3ce48321b46ac71df8e63d8ce5da9
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.pmsgroup.org
-
Port
587
-
Username
-
Password
BlessingAllTheTime
-
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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\079fa14ca79e70e3af541fcb3b7cbc67f4e3ce48321b46ac71df8e63d8ce5da9.exe"C:\Users\Admin\AppData\Local\Temp\079fa14ca79e70e3af541fcb3b7cbc67f4e3ce48321b46ac71df8e63d8ce5da9.exe"1⤵
- 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
memory/3328-0-0x0000000074AEE000-0x0000000074AEF000-memory.dmp
memory/3328-1-0x00000000001F0000-0x0000000000234000-memory.dmp
memory/3328-2-0x00000000052B0000-0x0000000005854000-memory.dmp
memory/3328-3-0x0000000004D70000-0x0000000004DD6000-memory.dmp
memory/3328-4-0x0000000074AE0000-0x0000000075290000-memory.dmp
memory/3328-7-0x0000000006540000-0x0000000006590000-memory.dmp
memory/3328-8-0x0000000006630000-0x00000000066CC000-memory.dmp
memory/3328-9-0x0000000074AEE000-0x0000000074AEF000-memory.dmp
memory/3328-10-0x0000000074AE0000-0x0000000075290000-memory.dmp
memory/3328-11-0x00000000067F0000-0x0000000006882000-memory.dmp
memory/3328-12-0x00000000068B0000-0x00000000068BA000-memory.dmp