Analysis

  • max time kernel
    51s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/06/2024, 01:13

General

  • Target
    ca9b3bcfbb999c3e14c7e4a3db50e8ad92df5414553807b780803ab6af7e311e.exe
  • Size 1.1MB
  • Sample240614-blh71ayhna
  • SHA256 ca9b3bcfbb999c3e14c7e4a3db50e8ad92df5414553807b780803ab6af7e311e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • 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
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ca9b3bcfbb999c3e14c7e4a3db50e8ad92df5414553807b780803ab6af7e311e.exe
    "C:\Users\Admin\AppData\Local\Temp\ca9b3bcfbb999c3e14c7e4a3db50e8ad92df5414553807b780803ab6af7e311e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1760
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\ca9b3bcfbb999c3e14c7e4a3db50e8ad92df5414553807b780803ab6af7e311e.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1760 -s 720
      2⤵
      • Program crash
      PID:4856
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1760 -ip 1760
    1⤵
      PID:1944

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1760-10-0x0000000003AC0000-0x0000000003AC4000-memory.dmp

          memory/4392-11-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/4392-12-0x000000007396E000-0x000000007396F000-memory.dmp

          memory/4392-13-0x00000000053A0000-0x0000000005944000-memory.dmp

          memory/4392-14-0x0000000004EF0000-0x0000000004F56000-memory.dmp

          memory/4392-15-0x0000000073960000-0x0000000074110000-memory.dmp

          memory/4392-16-0x000000007396E000-0x000000007396F000-memory.dmp

          memory/4392-17-0x0000000073960000-0x0000000074110000-memory.dmp

          memory/4392-20-0x00000000064E0000-0x0000000006530000-memory.dmp

          memory/4392-21-0x00000000065D0000-0x0000000006662000-memory.dmp

          memory/4392-22-0x0000000006560000-0x000000000656A000-memory.dmp