Analysis
- max time kernel
121s - max time network
122s - platform
windows7_x64 - resource
win7-20240215-en - resource tags
- submitted
26/04/2024, 12:44
General
- Target Packing List PDF.bat.exe
- Size 822KB
- Sample240426-pygftscf4x
- SHA256 1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3
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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 25 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Packing List PDF.bat.exe"C:\Users\Admin\AppData\Local\Temp\Packing List 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\Packing List 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\CmxzrHBB.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\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4154.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Packing List PDF.bat.exe"C:\Users\Admin\AppData\Local\Temp\Packing List PDF.bat.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Packing List PDF.bat.exe"C:\Users\Admin\AppData\Local\Temp\Packing List 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
tmp4154.tmp
9MWN9ACAHAI8RO8D3693.temp
memory/2676-28-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2676-22-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2676-24-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2676-27-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2676-29-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2676-20-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2676-18-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2676-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/3012-2-0x0000000004C20000-0x0000000004C60000-memory.dmp
memory/3012-1-0x0000000074160000-0x000000007484E000-memory.dmp
memory/3012-0-0x0000000000AE0000-0x0000000000BB4000-memory.dmp
memory/3012-3-0x00000000006D0000-0x00000000006F0000-memory.dmp
memory/3012-5-0x0000000005A20000-0x0000000005AA4000-memory.dmp
memory/3012-4-0x00000000006F0000-0x0000000000704000-memory.dmp
memory/3012-30-0x0000000074160000-0x000000007484E000-memory.dmp