Overview

overview

10

Static

static

1

be386e8264...50.lnk

windows7-x64

3

be386e8264...50.lnk

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    be386e82648d80bd602030f57e67a94834f945efd92293ab660e561b22c3e850.lnk

  • Size

    1KB

  • Sample

    240926-ctkw8svdmh

  • MD5

    383bec1808c99dcffafa9f4e03f104a4

  • SHA1

    2f3647ea4331f7848de1c96cef6427b7136ab835

  • SHA256

    be386e82648d80bd602030f57e67a94834f945efd92293ab660e561b22c3e850

  • SHA512

    ddb859691e290bb1f4180c086ca92d385918f497506b1b9dc0b1f10b71acb24259b34020b032fb25af64a3ba628e423381106a538e7539f8d9c2617cee11c617

Score
10/10
remcosback-septemberdiscoveryrat

Malware Config

Extracted

Family

remcos

Botnet

Back-September

C2

fullimmersion777.com:8090

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    hello.exe

  • copy_folder

    windw

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    rimcsl-94LESJ

  • 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

      be386e82648d80bd602030f57e67a94834f945efd92293ab660e561b22c3e850.lnk

    • Size

      1KB

    • MD5

      383bec1808c99dcffafa9f4e03f104a4

    • SHA1

      2f3647ea4331f7848de1c96cef6427b7136ab835

    • SHA256

      be386e82648d80bd602030f57e67a94834f945efd92293ab660e561b22c3e850

    • SHA512

      ddb859691e290bb1f4180c086ca92d385918f497506b1b9dc0b1f10b71acb24259b34020b032fb25af64a3ba628e423381106a538e7539f8d9c2617cee11c617

    Score
    10/10
    remcosback-septemberdiscoveryrat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks