Overview

overview

10

Static

static

DHL Expres...on.exe

windows7_x64

10

DHL Expres...on.exe

windows10_x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    21/10/2020, 13:09

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General

  • Target
    DHL Express Shipment Confirmation.exe
  • Size 756KB
  • Sample201021-8tr3r8fvsx
  • SHA256 bfa4daa95a303253a45cc02597d1fa404168fb88e627dc3afa4b3548a6ff893d
  • MD5 SHA1 SHA512
Score
10/10
ratremcospersistence

Malware Config

Extracted

Family

  • remcos

C2

  • kay34.duckdns.org:2267

Signatures

  • Remcos

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

    ratremcos
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Suspicious use of SetThreadContext 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Express Shipment Confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Express Shipment Confirmation.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Users\Admin\AppData\Local\Temp\DHL Express Shipment Confirmation.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Express Shipment Confirmation.exe"
      2⤵
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3732
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:856
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1840
          • C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
            C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:1696
            • C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
              C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
              6⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of SetWindowsHookEx
              PID:2120

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1696-10-0x0000000000400000-0x00000000004C2000-memory.dmp
        Download

        memory/2120-14-0x0000000000400000-0x0000000000421000-memory.dmp
        Download

        memory/2600-0-0x0000000000400000-0x00000000004C2000-memory.dmp
        Download

        memory/3732-3-0x0000000000400000-0x0000000000421000-memory.dmp
        Download

        memory/3732-1-0x0000000000400000-0x0000000000421000-memory.dmp
        Download