Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
07/06/2024, 01:34
General
- Target 4aa30540e4a15e91219f2531911bcc7cb2f122ab3fa8772140fe93af904f3bab.exe
- Size 475KB
- Sample240607-bzk9hsfd31
- SHA256 4aa30540e4a15e91219f2531911bcc7cb2f122ab3fa8772140fe93af904f3bab
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.gmail.com
-
Port
587
-
Username
-
Password
tssveohxktcpzhdm
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.gmail.com
-
Port
587
-
Username
-
Password
tssveohxktcpzhdm
-
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.
- 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\4aa30540e4a15e91219f2531911bcc7cb2f122ab3fa8772140fe93af904f3bab.exe"C:\Users\Admin\AppData\Local\Temp\4aa30540e4a15e91219f2531911bcc7cb2f122ab3fa8772140fe93af904f3bab.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\4aa30540e4a15e91219f2531911bcc7cb2f122ab3fa8772140fe93af904f3bab.exe"C:\Users\Admin\AppData\Local\Temp\4aa30540e4a15e91219f2531911bcc7cb2f122ab3fa8772140fe93af904f3bab.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/1192-8-0x00000000056F0000-0x00000000056F8000-memory.dmp
memory/1192-11-0x00000000750E0000-0x0000000075890000-memory.dmp
memory/1192-2-0x0000000005B00000-0x00000000060A4000-memory.dmp
memory/1192-3-0x00000000055F0000-0x0000000005682000-memory.dmp
memory/1192-4-0x00000000056B0000-0x00000000056BA000-memory.dmp
memory/1192-5-0x0000000005860000-0x00000000058CE000-memory.dmp
memory/1192-1-0x0000000000B30000-0x0000000000BAE000-memory.dmp
memory/1192-6-0x00000000750E0000-0x0000000075890000-memory.dmp
memory/1192-0-0x00000000750EE000-0x00000000750EF000-memory.dmp
memory/1192-7-0x0000000005970000-0x0000000005A0C000-memory.dmp
memory/5096-9-0x0000000000400000-0x0000000000440000-memory.dmp
memory/5096-10-0x00000000750E0000-0x0000000075890000-memory.dmp
memory/5096-12-0x00000000058F0000-0x0000000005956000-memory.dmp
memory/5096-13-0x00000000750E0000-0x0000000075890000-memory.dmp
memory/5096-14-0x00000000070D0000-0x0000000007120000-memory.dmp
memory/5096-15-0x00000000750E0000-0x0000000075890000-memory.dmp