Overview

overview

10

Static

static

8

USD$19,959...cs.xls

windows7-x64

10

USD$19,959...cs.xls

windows10-2004-x64

10

Sharing

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General

  • Target
    USD$19,959.92_ACH_Automation_M A Medical Dermatology & Esthetics.xls
  • Size 33KB
  • Sample221003-vmd48agacl
  • SHA256 ce4085be9c0cea2fdaa6145e86166b051222fcc96eac12e1668d803a6b97ebfe
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcoszhmacromacro_on_actionrat

Malware Config

Extracted

Family

  • remcos

Botnet

  • zh

C2

  • zelthin.dvrlists.com:656

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

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-V9EYJR

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      USD$19,959.92_ACH_Automation_M A Medical Dermatology & Esthetics.xls
    • Size 33KB
    • SHA256 ce4085be9c0cea2fdaa6145e86166b051222fcc96eac12e1668d803a6b97ebfe
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcoszhrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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.

    • Loads dropped DLL

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks