Overview

overview

10

Static

static

1

numer fakt...df.vbs

windows7-x64

10

numer fakt...df.vbs

windows10-2004-x64

8

Sharing

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General

  • Target
    numer faktury_505603890324·pdf.vbs
  • Size 19KB
  • Sample240402-qphszabc6z
  • SHA256 fe7ff83680ff3855e060227bddf560db0fe75b141db516320674dace99202224
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
guloaderremcosremotehostdownloaderpersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • RemoteHost

C2

  • a458386d9.duckdns.org:3256

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-KQ00DZ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      numer faktury_505603890324·pdf.vbs
    • Size 19KB
    • SHA256 fe7ff83680ff3855e060227bddf560db0fe75b141db516320674dace99202224
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    guloaderremcosremotehostdownloaderpersistencerat

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks