Analysis
- max time kernel
119s - max time network
126s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
14/02/2025, 04:14
General
- Target OPAL WEALTH V.2502 PARTICULARS.pdf.scr.exe
- Size 1.1MB
- Sample250214-etp73asmds
- SHA256 8c511dab54355d76edfda60811e62b832f7593919b5c8f683b53bf6690bc808b
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.
- Agenttesla family
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 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 3 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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\OPAL WEALTH V.2502 PARTICULARS.pdf.scr.exe"C:\Users\Admin\AppData\Local\Temp\OPAL WEALTH V.2502 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\OPAL WEALTH V.2502 PARTICULARS.pdf.scr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RIfWITCeuZofAg.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RIfWITCeuZofAg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4C6B.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\OPAL WEALTH V.2502 PARTICULARS.pdf.scr.exe"C:\Users\Admin\AppData\Local\Temp\OPAL WEALTH V.2502 PARTICULARS.pdf.scr.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
tmp4C6B.tmp
OEYDK47VAN51FYL9RIOC.temp
memory/2160-4-0x000000007441E000-0x000000007441F000-memory.dmp
memory/2160-32-0x0000000074410000-0x0000000074AFE000-memory.dmp
memory/2160-0-0x000000007441E000-0x000000007441F000-memory.dmp
memory/2160-5-0x0000000074410000-0x0000000074AFE000-memory.dmp
memory/2160-6-0x0000000000400000-0x0000000000486000-memory.dmp
memory/2160-2-0x0000000074410000-0x0000000074AFE000-memory.dmp
memory/2160-1-0x0000000000840000-0x0000000000954000-memory.dmp
memory/2160-3-0x0000000001EF0000-0x0000000001F0E000-memory.dmp
memory/2384-19-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2384-29-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2384-31-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2384-28-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2384-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2384-23-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2384-21-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2384-25-0x0000000000400000-0x0000000000440000-memory.dmp