Overview

overview

10

Static

static

3

OSE - PO &...01.exe

windows7-x64

10

OSE - PO &...01.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    OSE - PO & FCST - ???-LT24052303183991-01.exe
  • Size 15.0MB
  • Sample240524-bth7zagb7w
  • SHA256 1dd45a1200496700a9a9e138a0ecf1625c981855159ceb8624fe69b8bcfe3bb5
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • RemoteHost

C2

  • b64c611.ddnss.eu:3154

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    uytrs.exe

  • copy_folder

    iu7y6tr

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    u8tus.dat

  • keylog_flag

    false

  • keylog_folder

    87y6trf

  • mouse_option

    false

  • mutex

    OIUGH6-BFBAXD

  • 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
      OSE - PO & FCST - ???-LT24052303183991-01.exe
    • Size 15.0MB
    • SHA256 1dd45a1200496700a9a9e138a0ecf1625c981855159ceb8624fe69b8bcfe3bb5
    • MD5 SHA1 SHA512 SSDEEP
    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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks