Overview

overview

10

Static

static

3

aa2318e3a9...15.exe

windows7-x64

10

aa2318e3a9...15.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    aa2318e3a9dfae87aedfe3663748fd2968ed9d0c6cb8497c756f16ad1e579b15

  • Size

    1.9MB

  • Sample

    241116-16mtcsverf

  • MD5

    da104509d31179c8b183b72ab096b9c2

  • SHA1

    71bdec8e589a0af4823c87a7f3fb2158f5ec33a5

  • SHA256

    aa2318e3a9dfae87aedfe3663748fd2968ed9d0c6cb8497c756f16ad1e579b15

  • SHA512

    da9516b3a4bcefba6d82f6f1f07dd4a4a9a2f3a92cb021c03093b8ba4e71c8536a7229fbe25909c1020818e8adaf9711f6a3b42ae67d6c436ab7af1351daee85

  • SSDEEP

    49152:VnMA5X2hFShTVb+JzPPBsJnEPsn6wzJtvwSHgG+GMj8l:aA5mLQxyBsusnnvwYKj

Score
10/10
remcosms-officediscoveryevasionrat

Malware Config

Extracted

Family

remcos

Botnet

ms-office

C2

ms-office.duckdns.org:39438

ms-office1.duckdns.org:39439
Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-MXJN22

  • 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

      aa2318e3a9dfae87aedfe3663748fd2968ed9d0c6cb8497c756f16ad1e579b15

    • Size

      1.9MB

    • MD5

      da104509d31179c8b183b72ab096b9c2

    • SHA1

      71bdec8e589a0af4823c87a7f3fb2158f5ec33a5

    • SHA256

      aa2318e3a9dfae87aedfe3663748fd2968ed9d0c6cb8497c756f16ad1e579b15

    • SHA512

      da9516b3a4bcefba6d82f6f1f07dd4a4a9a2f3a92cb021c03093b8ba4e71c8536a7229fbe25909c1020818e8adaf9711f6a3b42ae67d6c436ab7af1351daee85

    • SSDEEP

      49152:VnMA5X2hFShTVb+JzPPBsJnEPsn6wzJtvwSHgG+GMj8l:aA5mLQxyBsusnnvwYKj

    Score
    10/10
    remcosms-officediscoveryevasionrat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

      evasion

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks