Overview

overview

10

Static

static

3

a964f632cb...75.exe

windows7-x64

3

a964f632cb...75.exe

windows10-2004-x64

10

⠨/start.vbs

windows7-x64

⠨/start.vbs

windows10-2004-x64

⠨/temp.bat

windows7-x64

⠨/temp.bat

windows10-2004-x64

Sharing

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General

  • Target
    a964f632cb0e524f5f7784a1b99da4bbde98216128e74713eb12851b83073075.exe
  • Size 515KB
  • Sample240428-b82b4adh61
  • SHA256 a964f632cb0e524f5f7784a1b99da4bbde98216128e74713eb12851b83073075
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosremotehostrat

Malware Config

Extracted

Family

  • remcos

Botnet

  • RemoteHost

C2

  • 172.94.101.172:6238

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-ZY6SQA

  • 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
      a964f632cb0e524f5f7784a1b99da4bbde98216128e74713eb12851b83073075.exe
    • Size 515KB
    • SHA256 a964f632cb0e524f5f7784a1b99da4bbde98216128e74713eb12851b83073075
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcosremotehostrat

    • Remcos

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

      ratremcos

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Checks computer location settings

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

    • Drops startup file

    • Suspicious use of SetThreadContext

    behavioral1behavioral2
    • Target
      ⠨/start.vbs
    • Size 170B
    • SHA256 087f43e7f9f78bbeb1050cdbfaeb3d23ad7b4b742d6ef91229b8824a20daaee6
    • MD5 SHA1 SHA512
    Score
    1/10
    behavioral3behavioral4
    • Target
      ⠨/temp.bat
    • Size 518KB
    • SHA256 c8ac67ae12680fa0dbfe31a8c76793de12f3ef74f1c5e1f47785f7e5828dd364
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    behavioral5behavioral6

MITRE ATT&CK Enterprise v15

Tasks