Overview

overview

10

Static

static

1

Swift copy.exe

windows7-x64

10

Swift copy.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    288s
  • max time network
    322s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/12/2022, 11:41

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General

  • Target
    Swift copy.exe
  • Size 551KB
  • Sample221207-nte7jadb56
  • SHA256 f830ced2c0d06737392dddabd93828fa37430b0c6ec27cb7186c46d5e2f570b8
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosucpersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • UC

C2

  • ucremcz1.ddns.net:1823

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    BIN.exe

  • copy_folder

    BIN

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-X402GF

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    bin

  • take_screenshot_option

    false

  • take_screenshot_time

    5

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 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Swift copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Users\Admin\AppData\Local\Temp\ipsfqzlahu.exe
      "C:\Users\Admin\AppData\Local\Temp\ipsfqzlahu.exe" C:\Users\Admin\AppData\Local\Temp\dyhjcyzqwc.d
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4024
      • C:\Users\Admin\AppData\Local\Temp\ipsfqzlahu.exe
        "C:\Users\Admin\AppData\Local\Temp\ipsfqzlahu.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1424

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        dyhjcyzqwc.d
        • Path C:\Users\Admin\AppData\Local\Temp\dyhjcyzqwc.d
        • Size 7KB
        • SHA256 9efeb3bbb5701ac2b8638d431df3be1e59020970a208fa797f4acd25fc1bb2d5
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        eekgv.w
        • Path C:\Users\Admin\AppData\Local\Temp\eekgv.w
        • Size 469KB
        • SHA256 9b7ac0f4d5f3511aa4d3410d3e87cabc64469ba9ab8589fdd30ae61e8269e771
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ipsfqzlahu.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ipsfqzlahu.exe
        • Size 267KB
        • SHA256 dcb61c55ba74a131833f2b76c595b19ee447b05b744d19ab3900d74109eb5d98
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ipsfqzlahu.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ipsfqzlahu.exe
        • Size 267KB
        • SHA256 dcb61c55ba74a131833f2b76c595b19ee447b05b744d19ab3900d74109eb5d98
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ipsfqzlahu.exe
        • Path C:\Users\Admin\AppData\Local\Temp\ipsfqzlahu.exe
        • Size 267KB
        • SHA256 dcb61c55ba74a131833f2b76c595b19ee447b05b744d19ab3900d74109eb5d98
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1424-139-0x0000000000400000-0x000000000047F000-memory.dmp
        Download

        memory/1424-140-0x0000000000400000-0x000000000047F000-memory.dmp
        Download