Analysis
- max time kernel
120s - max time network
120s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
04/09/2024, 04:21
General
- Target CSC LEADER VOY.1 PARTICULARS.pdf.scr.exe
- Size 707KB
- Sample240904-eynj2avcpm
- SHA256 97a1e4bfc76eeec8faa59bd7de85088d2e42cf9562ea66c2305d0309080712ac
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://beirutrest.com
-
Port
21
-
Username
-
Password
9yXQ39wz(uL+
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\CSC LEADER VOY.1 PARTICULARS.pdf.scr.exe"C:\Users\Admin\AppData\Local\Temp\CSC LEADER VOY.1 PARTICULARS.pdf.scr.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\CSC LEADER VOY.1 PARTICULARS.pdf.scr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\CSC LEADER VOY.1 PARTICULARS.pdf.scr.exe"C:\Users\Admin\AppData\Local\Temp\CSC LEADER VOY.1 PARTICULARS.pdf.scr.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
memory/1800-0-0x000000007426E000-0x000000007426F000-memory.dmp
memory/1800-1-0x0000000000C50000-0x0000000000D06000-memory.dmp
memory/1800-2-0x0000000074260000-0x000000007494E000-memory.dmp
memory/1800-3-0x0000000000510000-0x0000000000528000-memory.dmp
memory/1800-4-0x000000007426E000-0x000000007426F000-memory.dmp
memory/1800-5-0x0000000074260000-0x000000007494E000-memory.dmp
memory/1800-6-0x00000000050C0000-0x0000000005142000-memory.dmp
memory/1800-25-0x0000000074260000-0x000000007494E000-memory.dmp
memory/2628-23-0x0000000074260000-0x000000007494E000-memory.dmp
memory/2628-24-0x0000000074260000-0x000000007494E000-memory.dmp
memory/2628-17-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2628-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2628-13-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2628-11-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2628-9-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2628-7-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2628-22-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2628-19-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2628-28-0x0000000074260000-0x000000007494E000-memory.dmp