Analysis

  • max time kernel
    147s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    08/02/2021, 14:43

General

  • Target
    QUOTATION-PDF- SCAN COPY.exe
  • Size 530KB
  • Sample210208-66fpryjqkn
  • SHA256 7c1e149c846e0453788be45dbad28de16018cbde56d0ffc712ac1d6db8abcb09
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Remcos

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

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION-PDF- SCAN COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION-PDF- SCAN COPY.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3564
    • C:\Users\Admin\AppData\Local\Temp\QUOTATION-PDF- SCAN COPY.exe
      "C:\Users\Admin\AppData\Local\Temp\QUOTATION-PDF- SCAN COPY.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2924

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2924-5-0x0000000000400000-0x0000000000479000-memory.dmp