Analysis
- max time kernel
121s - max time network
122s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
29/04/2024, 12:13
General
- Target Quotation PDF.bat.exe
- Size 659KB
- Sample240429-pdqtrsab39
- SHA256 a689e5f1c8d3a195368dd62cf94953e55abbbb87f75e0363a6d09dfe2bb2bcb9
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.fascia-arch.com
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Port
587
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Username
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Password
HERbertstown1987
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- 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).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 7 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Quotation PDF.bat.exe"C:\Users\Admin\AppData\Local\Temp\Quotation PDF.bat.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\Quotation PDF.bat.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wIJZGYVmVbqsV.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wIJZGYVmVbqsV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5782.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Quotation PDF.bat.exe"C:\Users\Admin\AppData\Local\Temp\Quotation PDF.bat.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
tmp5782.tmp
d93f411851d7c929.customDestinations-ms
memory/2880-29-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-21-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-25-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-23-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2880-28-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-30-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2880-19-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2988-6-0x0000000004F90000-0x0000000005014000-memory.dmp
memory/2988-1-0x0000000074520000-0x0000000074C0E000-memory.dmp
memory/2988-0-0x0000000001130000-0x00000000011DA000-memory.dmp
memory/2988-2-0x0000000004CD0000-0x0000000004D10000-memory.dmp
memory/2988-3-0x0000000000820000-0x0000000000838000-memory.dmp
memory/2988-5-0x0000000000840000-0x0000000000856000-memory.dmp
memory/2988-4-0x0000000000710000-0x000000000071E000-memory.dmp
memory/2988-31-0x0000000074520000-0x0000000074C0E000-memory.dmp