Analysis
- max time kernel
137s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
19/05/2024, 01:22
General
- Target New order.exe
- Size 937KB
- Sample240519-brfdasba84
- SHA256 b3ac3ae44c087c5dc5d42c5ea8531e82f47cc6740da571a7c60624dfdb436469
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.iaa-airferight.com
-
Port
587
-
Username
-
Password
webmaster
-
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 WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\New order.exe"C:\Users\Admin\AppData\Local\Temp\New order.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/404-6-0x0000000004E70000-0x0000000004EB8000-memory.dmp
memory/404-1-0x00000000000D0000-0x00000000001C0000-memory.dmp
memory/404-2-0x0000000005160000-0x0000000005704000-memory.dmp
memory/404-3-0x0000000004BB0000-0x0000000004C42000-memory.dmp
memory/404-5-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/404-4-0x0000000004C70000-0x0000000004C7A000-memory.dmp
memory/404-12-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/404-0-0x000000007492E000-0x000000007492F000-memory.dmp
memory/4916-13-0x0000000006920000-0x0000000006970000-memory.dmp
memory/4916-10-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/4916-9-0x00000000053C0000-0x0000000005426000-memory.dmp
memory/4916-8-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/4916-7-0x0000000000400000-0x0000000000440000-memory.dmp
memory/4916-14-0x0000000074920000-0x00000000750D0000-memory.dmp