Analysis
- max time kernel
143s - max time network
181s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
- submitted
05/05/2023, 12:20
General
- Target Yeni siparis eklendi.exe
- Size 589KB
- Sample230505-phr8dscc5x
- SHA256 a1ad0c868b1516099bd98539e2461b5d5f875ac42fab278297dab51687ac2037
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
smtp.ionos.com
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Port
587
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Username
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Password
goodGod4real2023?.
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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.
- Uses the VBS compiler for execution 1 TTPs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Yeni siparis eklendi.exe"C:\Users\Admin\AppData\Local\Temp\Yeni siparis eklendi.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\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HfYnoudEuRRfUp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9AD8.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"{path}"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"{path}"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp9AD8.tmp
memory/2176-151-0x0000000006C30000-0x0000000006DF2000-memory.dmp
memory/2176-150-0x00000000068E0000-0x0000000006930000-memory.dmp
memory/2176-147-0x0000000004F80000-0x0000000004F90000-memory.dmp
memory/2176-146-0x0000000004F80000-0x0000000004F90000-memory.dmp
memory/2176-145-0x0000000005010000-0x0000000005076000-memory.dmp
memory/2176-143-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2624-136-0x00000000050A0000-0x000000000513C000-memory.dmp
memory/2624-139-0x00000000051E0000-0x00000000051F0000-memory.dmp
memory/2624-138-0x0000000004FA0000-0x0000000004FAA000-memory.dmp
memory/2624-137-0x00000000051E0000-0x00000000051F0000-memory.dmp
memory/2624-133-0x00000000006B0000-0x000000000074A000-memory.dmp
memory/2624-135-0x0000000005000000-0x0000000005092000-memory.dmp
memory/2624-134-0x0000000005510000-0x0000000005AB4000-memory.dmp