Analysis
- max time kernel
128s - max time network
194s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
31/10/2022, 09:09
General
- Target SecuriteInfo.com.Win32.CrypterX-gen.30347.19610.exe
- Size 774KB
- Sample221031-k4fdhaaeb4
- SHA256 3740ceb756fe0c8bec3ebbb3407c2898eb87fa4ad7bc828e6bfba4857a4f383b
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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 use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.30347.19610.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.30347.19610.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.30347.19610.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.30347.19610.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1428-139-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1428-140-0x0000000005C00000-0x0000000005C66000-memory.dmp
memory/1428-141-0x0000000006A20000-0x0000000006A70000-memory.dmp
memory/4304-132-0x00000000008E0000-0x00000000009A8000-memory.dmp
memory/4304-133-0x0000000005960000-0x0000000005F04000-memory.dmp
memory/4304-134-0x00000000053B0000-0x0000000005442000-memory.dmp
memory/4304-135-0x0000000005450000-0x00000000054EC000-memory.dmp
memory/4304-136-0x0000000005340000-0x000000000534A000-memory.dmp