Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
19/06/2024, 02:07
General
- Target b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.exe
- Size 1.0MB
- Sample240619-cj5hwssarg
- SHA256 b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.strongserviceip.com
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Port
587
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Username
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Password
vzye6BZ?ABs;
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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 3 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 SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.exe"C:\Users\Admin\AppData\Local\Temp\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.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\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.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\QJWWHKq.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\QJWWHKq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6FD1.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
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-
C:\Users\Admin\AppData\Local\Temp\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.exe"C:\Users\Admin\AppData\Local\Temp\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.exe"2⤵
-
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C:\Users\Admin\AppData\Local\Temp\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.exe"C:\Users\Admin\AppData\Local\Temp\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.exe"C:\Users\Admin\AppData\Local\Temp\b8f658ca94b880d36faa7b0ea4144bb49c0afe6a8ee151dffeadc92b4c4c667a.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
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_fh3xnx1m.aip.ps1
tmp6FD1.tmp
memory/2488-4-0x00000000058D0000-0x00000000058DA000-memory.dmp
memory/2488-5-0x0000000075150000-0x0000000075900000-memory.dmp
memory/2488-6-0x0000000005AC0000-0x0000000005AD8000-memory.dmp
memory/2488-7-0x0000000005B00000-0x0000000005B0E000-memory.dmp
memory/2488-8-0x0000000005C20000-0x0000000005C34000-memory.dmp
memory/2488-9-0x00000000087C0000-0x000000000886C000-memory.dmp
memory/2488-10-0x000000000BDB0000-0x000000000BE4C000-memory.dmp
memory/2488-46-0x0000000075150000-0x0000000075900000-memory.dmp
memory/2488-3-0x0000000005830000-0x00000000058C2000-memory.dmp
memory/2488-2-0x0000000005DE0000-0x0000000006384000-memory.dmp
memory/2488-0-0x000000007515E000-0x000000007515F000-memory.dmp
memory/2488-1-0x0000000000D20000-0x0000000000E24000-memory.dmp
memory/3012-84-0x0000000075150000-0x0000000075900000-memory.dmp
memory/3012-23-0x0000000075150000-0x0000000075900000-memory.dmp
memory/3012-77-0x0000000007B80000-0x0000000007B8E000-memory.dmp
memory/3012-74-0x00000000079C0000-0x00000000079CA000-memory.dmp
memory/3012-78-0x0000000007B90000-0x0000000007BA4000-memory.dmp
memory/3012-49-0x00000000075D0000-0x0000000007602000-memory.dmp
memory/3012-69-0x00000000075B0000-0x00000000075CE000-memory.dmp
memory/3012-47-0x00000000065F0000-0x000000000660E000-memory.dmp
memory/3012-48-0x00000000067B0000-0x00000000067FC000-memory.dmp
memory/3012-50-0x0000000075A00000-0x0000000075A4C000-memory.dmp
memory/3012-70-0x0000000007620000-0x00000000076C3000-memory.dmp
memory/3564-44-0x0000000000400000-0x0000000000444000-memory.dmp
memory/3564-89-0x00000000068B0000-0x0000000006900000-memory.dmp
memory/5048-30-0x0000000005440000-0x0000000005794000-memory.dmp
memory/5048-60-0x0000000075A00000-0x0000000075A4C000-memory.dmp
memory/5048-20-0x0000000004980000-0x00000000049A2000-memory.dmp
memory/5048-73-0x0000000006D60000-0x0000000006D7A000-memory.dmp
memory/5048-72-0x00000000073A0000-0x0000000007A1A000-memory.dmp
memory/5048-21-0x0000000004C20000-0x0000000004C86000-memory.dmp
memory/5048-75-0x0000000006FE0000-0x0000000007076000-memory.dmp
memory/5048-76-0x0000000006F60000-0x0000000006F71000-memory.dmp
memory/5048-22-0x00000000052D0000-0x0000000005336000-memory.dmp
memory/5048-19-0x0000000075150000-0x0000000075900000-memory.dmp
memory/5048-79-0x00000000070A0000-0x00000000070BA000-memory.dmp
memory/5048-80-0x0000000007080000-0x0000000007088000-memory.dmp
memory/5048-18-0x0000000075150000-0x0000000075900000-memory.dmp
memory/5048-16-0x0000000075150000-0x0000000075900000-memory.dmp
memory/5048-17-0x0000000004CA0000-0x00000000052C8000-memory.dmp
memory/5048-88-0x0000000075150000-0x0000000075900000-memory.dmp
memory/5048-15-0x0000000002170000-0x00000000021A6000-memory.dmp