Analysis
- max time kernel
51s - max time network
54s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
19/06/2024, 15:15
General
- Target 1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe
- Size 661KB
- Sample240619-smw9pasemc
- SHA256 1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.naubahar.com
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Port
587
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Username
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Password
Hum$885+Nn
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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).
- 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 12 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe"C:\Users\Admin\AppData\Local\Temp\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.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\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- 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\ZgvUYcgWaiQFD.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\ZgvUYcgWaiQFD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp78CA.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe"C:\Users\Admin\AppData\Local\Temp\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe"C:\Users\Admin\AppData\Local\Temp\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe"C:\Users\Admin\AppData\Local\Temp\1b68fe4f599f20aa70efb528ec45495683877193869eb95cd77119bcac096cd1.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_fkbmvzb4.qst.ps1
tmp78CA.tmp
memory/3248-87-0x00000000068B0000-0x0000000006900000-memory.dmp
memory/3248-43-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4712-4-0x0000000004DA0000-0x0000000004DAA000-memory.dmp
memory/4712-7-0x0000000005010000-0x0000000005022000-memory.dmp
memory/4712-8-0x0000000006080000-0x0000000006088000-memory.dmp
memory/4712-9-0x0000000006090000-0x000000000609C000-memory.dmp
memory/4712-10-0x00000000060E0000-0x0000000006164000-memory.dmp
memory/4712-0-0x00000000751FE000-0x00000000751FF000-memory.dmp
memory/4712-6-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4712-5-0x0000000005070000-0x000000000510C000-memory.dmp
memory/4712-3-0x0000000004E20000-0x0000000004EB2000-memory.dmp
memory/4712-45-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4712-2-0x00000000053D0000-0x0000000005974000-memory.dmp
memory/4712-1-0x0000000000300000-0x00000000003A8000-memory.dmp
memory/4748-15-0x00000000027E0000-0x0000000002816000-memory.dmp
memory/4748-71-0x0000000007A40000-0x00000000080BA000-memory.dmp
memory/4748-22-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4748-23-0x0000000005940000-0x0000000005C94000-memory.dmp
memory/4748-19-0x00000000057E0000-0x0000000005846000-memory.dmp
memory/4748-20-0x0000000005850000-0x00000000058B6000-memory.dmp
memory/4748-46-0x00000000060D0000-0x00000000060EE000-memory.dmp
memory/4748-47-0x0000000006160000-0x00000000061AC000-memory.dmp
memory/4748-48-0x0000000007080000-0x00000000070B2000-memory.dmp
memory/4748-49-0x0000000075AA0000-0x0000000075AEC000-memory.dmp
memory/4748-16-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4748-60-0x00000000072C0000-0x0000000007363000-memory.dmp
memory/4748-59-0x0000000007040000-0x000000000705E000-memory.dmp
memory/4748-18-0x0000000005100000-0x0000000005122000-memory.dmp
memory/4748-72-0x00000000073F0000-0x000000000740A000-memory.dmp
memory/4748-73-0x0000000007470000-0x000000000747A000-memory.dmp
memory/4748-85-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4748-75-0x00000000075F0000-0x0000000007601000-memory.dmp
memory/4748-17-0x00000000051B0000-0x00000000057D8000-memory.dmp
memory/4748-77-0x0000000007630000-0x0000000007644000-memory.dmp
memory/4748-21-0x00000000751F0000-0x00000000759A0000-memory.dmp
memory/4748-79-0x0000000007710000-0x0000000007718000-memory.dmp
memory/4808-78-0x00000000074E0000-0x00000000074FA000-memory.dmp
memory/4808-76-0x00000000073D0000-0x00000000073DE000-memory.dmp
memory/4808-74-0x0000000007420000-0x00000000074B6000-memory.dmp
memory/4808-61-0x0000000075AA0000-0x0000000075AEC000-memory.dmp