Analysis
- max time kernel
138s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
19/05/2024, 01:20
General
- Target e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432.exe
- Size 700KB
- Sample240519-bqk76aah2y
- SHA256 e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.bonnyriggdentalsurgery.com.au
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Port
587
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Username
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Password
Sages101*
Extracted
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agenttesla
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Protocol
smtp
-
Host
mail.bonnyriggdentalsurgery.com.au
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Port
587
-
Username
-
Password
Sages101*
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 1 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 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432.exe"C:\Users\Admin\AppData\Local\Temp\e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432.exe"1⤵
- Checks computer location settings
- 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\e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- 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\BThrvPseKTe.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BThrvPseKTe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D2C.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432.exe"C:\Users\Admin\AppData\Local\Temp\e8fe4366c2f5dec094103ca8abbf55bf6d2bfd50fa9e6441111678a0f0e8c432.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_0hnkjzcn.1gb.ps1
tmp8D2C.tmp
memory/2272-83-0x0000000007B10000-0x0000000007B18000-memory.dmp
memory/2272-26-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/2272-82-0x0000000007B30000-0x0000000007B4A000-memory.dmp
memory/2272-64-0x0000000075640000-0x000000007568C000-memory.dmp
memory/2272-87-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/2272-21-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/2272-19-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/2272-15-0x0000000002B80000-0x0000000002BB6000-memory.dmp
memory/2272-17-0x0000000005610000-0x0000000005C38000-memory.dmp
memory/2272-79-0x00000000079F0000-0x0000000007A01000-memory.dmp
memory/2320-7-0x0000000005840000-0x0000000005862000-memory.dmp
memory/2320-0-0x0000000074D9E000-0x0000000074D9F000-memory.dmp
memory/2320-9-0x00000000051E0000-0x00000000051F0000-memory.dmp
memory/2320-8-0x00000000059F0000-0x00000000059FC000-memory.dmp
memory/2320-6-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/2320-5-0x0000000005AD0000-0x0000000005B6C000-memory.dmp
memory/2320-1-0x0000000000D40000-0x0000000000DF4000-memory.dmp
memory/2320-48-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/2320-4-0x0000000005800000-0x000000000580A000-memory.dmp
memory/2320-3-0x0000000005860000-0x00000000058F2000-memory.dmp
memory/2320-10-0x0000000006720000-0x00000000067A4000-memory.dmp
memory/2320-2-0x0000000005D70000-0x0000000006314000-memory.dmp
memory/3492-36-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3492-84-0x0000000006B50000-0x0000000006BA0000-memory.dmp
memory/3652-23-0x00000000061B0000-0x00000000061D2000-memory.dmp
memory/3652-63-0x0000000007B50000-0x0000000007BF3000-memory.dmp
memory/3652-62-0x0000000007B30000-0x0000000007B4E000-memory.dmp
memory/3652-52-0x0000000075640000-0x000000007568C000-memory.dmp
memory/3652-51-0x0000000006F20000-0x0000000006F52000-memory.dmp
memory/3652-49-0x0000000006950000-0x000000000696E000-memory.dmp
memory/3652-74-0x00000000082C0000-0x000000000893A000-memory.dmp
memory/3652-75-0x0000000007C80000-0x0000000007C9A000-memory.dmp
memory/3652-76-0x0000000007CF0000-0x0000000007CFA000-memory.dmp
memory/3652-78-0x0000000007F00000-0x0000000007F96000-memory.dmp
memory/3652-50-0x0000000006980000-0x00000000069CC000-memory.dmp
memory/3652-80-0x0000000007EB0000-0x0000000007EBE000-memory.dmp
memory/3652-81-0x0000000007EC0000-0x0000000007ED4000-memory.dmp
memory/3652-46-0x0000000006330000-0x0000000006684000-memory.dmp
memory/3652-24-0x0000000006250000-0x00000000062B6000-memory.dmp
memory/3652-25-0x00000000062C0000-0x0000000006326000-memory.dmp
memory/3652-22-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/3652-18-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/3652-16-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/3652-91-0x0000000074D90000-0x0000000075540000-memory.dmp