Analysis
- max time kernel
117s - max time network
118s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
17/04/2024, 09:13
General
- Target UPDATED SOA PDF.exe
- Size 688KB
- Sample240417-k6srlscc3w
- SHA256 40bb8b7b9fec345f4aa54b05cc02fa42b404b9de341e07f7c6d7a0c1a1d801ff
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.flexwelltour.com
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Port
587
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Username
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Password
w$5DC?c5
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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 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 13 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\UPDATED SOA PDF.exe"C:\Users\Admin\AppData\Local\Temp\UPDATED SOA PDF.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\UPDATED SOA PDF.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\eVLiRnaGQFTb.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\eVLiRnaGQFTb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA0C4.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\UPDATED SOA PDF.exe"C:\Users\Admin\AppData\Local\Temp\UPDATED SOA PDF.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\UPDATED SOA PDF.exe"C:\Users\Admin\AppData\Local\Temp\UPDATED SOA PDF.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\UPDATED SOA PDF.exe"C:\Users\Admin\AppData\Local\Temp\UPDATED SOA PDF.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
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_osceayeo.243.ps1
tmpA0C4.tmp
memory/1304-84-0x00000000072F0000-0x0000000007386000-memory.dmp
memory/1304-53-0x0000000005DE0000-0x0000000005E2C000-memory.dmp
memory/1304-82-0x0000000007070000-0x000000000708A000-memory.dmp
memory/1304-81-0x00000000076C0000-0x0000000007D3A000-memory.dmp
memory/1304-79-0x0000000006F20000-0x0000000006FC3000-memory.dmp
memory/1304-77-0x0000000004740000-0x0000000004750000-memory.dmp
memory/1304-54-0x0000000006ED0000-0x0000000006F02000-memory.dmp
memory/1304-57-0x0000000071DB0000-0x0000000071DFC000-memory.dmp
memory/1304-55-0x000000007F8E0000-0x000000007F8F0000-memory.dmp
memory/1304-27-0x0000000005710000-0x0000000005776000-memory.dmp
memory/1304-52-0x0000000005D50000-0x0000000005D6E000-memory.dmp
memory/1304-86-0x00000000072A0000-0x00000000072AE000-memory.dmp
memory/1304-17-0x0000000004750000-0x0000000004786000-memory.dmp
memory/1304-21-0x0000000004740000-0x0000000004750000-memory.dmp
memory/1304-96-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/1304-23-0x0000000004740000-0x0000000004750000-memory.dmp
memory/1304-24-0x0000000004CF0000-0x0000000004D12000-memory.dmp
memory/1304-26-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/1304-25-0x00000000056A0000-0x0000000005706000-memory.dmp
memory/3132-18-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/3132-56-0x0000000071DB0000-0x0000000071DFC000-memory.dmp
memory/3132-20-0x00000000053B0000-0x00000000053C0000-memory.dmp
memory/3132-85-0x0000000007E10000-0x0000000007E21000-memory.dmp
memory/3132-87-0x0000000007E50000-0x0000000007E64000-memory.dmp
memory/3132-88-0x0000000007F50000-0x0000000007F6A000-memory.dmp
memory/3132-80-0x00000000053B0000-0x00000000053C0000-memory.dmp
memory/3132-89-0x0000000007F30000-0x0000000007F38000-memory.dmp
memory/3132-19-0x00000000059F0000-0x0000000006018000-memory.dmp
memory/3132-22-0x00000000053B0000-0x00000000053C0000-memory.dmp
memory/3132-68-0x0000000007A60000-0x0000000007A7E000-memory.dmp
memory/3132-58-0x000000007F360000-0x000000007F370000-memory.dmp
memory/3132-97-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/3132-83-0x0000000007C80000-0x0000000007C8A000-memory.dmp
memory/4168-98-0x0000000006BE0000-0x0000000006C30000-memory.dmp
memory/4168-99-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/4168-51-0x0000000005460000-0x0000000005470000-memory.dmp
memory/4168-100-0x0000000005460000-0x0000000005470000-memory.dmp
memory/4168-49-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/4168-47-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4420-12-0x0000000007A70000-0x0000000007B0C000-memory.dmp
memory/4420-5-0x0000000005CC0000-0x0000000005CD0000-memory.dmp
memory/4420-6-0x0000000005C10000-0x0000000005CAE000-memory.dmp
memory/4420-4-0x0000000005B70000-0x0000000005C02000-memory.dmp
memory/4420-7-0x0000000005D60000-0x0000000005D6A000-memory.dmp
memory/4420-8-0x0000000005D50000-0x0000000005D64000-memory.dmp
memory/4420-9-0x0000000005FA0000-0x0000000005FA8000-memory.dmp
memory/4420-3-0x0000000006280000-0x0000000006824000-memory.dmp
memory/4420-2-0x0000000005770000-0x0000000005AC4000-memory.dmp
memory/4420-10-0x0000000005FB0000-0x0000000005FBC000-memory.dmp
memory/4420-0-0x0000000000CB0000-0x0000000000D62000-memory.dmp
memory/4420-11-0x0000000006120000-0x00000000061A2000-memory.dmp
memory/4420-1-0x0000000074A70000-0x0000000075220000-memory.dmp
memory/4420-50-0x0000000074A70000-0x0000000075220000-memory.dmp