Overview

overview

10

Static

static

1

yak.cmd

windows7-x64

10

yak.cmd

windows10-2004-x64

10

Sharing

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General

  • Target

    yak.cmd

  • Size

    2.8MB

  • Sample

    240517-zlbd6aad78

  • MD5

    0686c44528057a8ca6a5559a7e333917

  • SHA1

    dc8566bf211b2c42d8f3b2187e39a33f5a007673

  • SHA256

    a3e3461ddb704fa103ebe9a2c05e3cfd8389f118d1e5b20f2039337ce7306767

  • SHA512

    02abc13471641c84d0abd35a0ea2a5645dc4dd4a3649c1654cb7b03903a5738ea7d7418a0cb1a80306a79962d5cb111bbb9121d3b551368495f0ad63f86538b2

  • SSDEEP

    24576:WsYQ30r2rIZonlOnDs1xs2BI3wh9nyd83WpMTpcmBiKnvGGnxPfxBJGhRCyQ6:WFQ30LZDnQW2BI3whly8WxkzR0Q6

Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

myumysmeetr.ddns.net:2404

mysweeterbk.ddns.net:2404

meetre1ms.freeddns.org:2404

bbhmeetre1ms.freeddns.org:2404
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-TPT9X3

  • 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

      yak.cmd

    • Size

      2.8MB

    • MD5

      0686c44528057a8ca6a5559a7e333917

    • SHA1

      dc8566bf211b2c42d8f3b2187e39a33f5a007673

    • SHA256

      a3e3461ddb704fa103ebe9a2c05e3cfd8389f118d1e5b20f2039337ce7306767

    • SHA512

      02abc13471641c84d0abd35a0ea2a5645dc4dd4a3649c1654cb7b03903a5738ea7d7418a0cb1a80306a79962d5cb111bbb9121d3b551368495f0ad63f86538b2

    • SSDEEP

      24576:WsYQ30r2rIZonlOnDs1xs2BI3wh9nyd83WpMTpcmBiKnvGGnxPfxBJGhRCyQ6:WFQ30LZDnQW2BI3whly8WxkzR0Q6

    Score
    10/10
    remcosremotehostpersistencerat

    • Remcos

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

      ratremcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks