Overview

overview

10

Static

static

1

Fluor RFQ1...df.vbs

windows7-x64

8

Fluor RFQ1...df.vbs

windows10-2004-x64

10

Sharing

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General

  • Target

    57b863d0dc652e27edacd480593bbd3e45ec5a8e9e8208a2ba52d4ecf91c8a17

  • Size

    8KB

  • Sample

    241118-k3897asqg1

  • MD5

    db8a9327aa708179b87dfb4c5039696a

  • SHA1

    983a487e71cb8eda3936e7dcdf2d4212d6825622

  • SHA256

    57b863d0dc652e27edacd480593bbd3e45ec5a8e9e8208a2ba52d4ecf91c8a17

  • SHA512

    39128a2b7e2ce050771ac688d4fefd7424dfc188341ec4c4cf9bfd1364b8013963073769dd463d727c32d1e178ac6f6352911d3185d4001d5bbcf82403c60139

  • SSDEEP

    192:iG2OGRjzNVKSxc1wdbdLRKN0Esw+TOJycGSeuodf/MjH82rQ:iGgRjzNVK1wbRKPsNMZneJ/yE

Score
10/10
remcosremotehostcollectioncredential_accessdiscoveryevasionratstealertrojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

mtt9kw1mj.duckdns.org:23458

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

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-28YJO8

  • 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

      Fluor RFQ1475·pdf.vbs

    • Size

      15KB

    • MD5

      695ec6cd0d4d8abaab5bed4e4f37153d

    • SHA1

      027b2b36b69e9f41bc5b54493533d8b417192255

    • SHA256

      3bb02f08d2d70b6f126d045a385a241330dbe96689304c48f1b9a1958297a060

    • SHA512

      36a68f1693a03903990cf86eafe285cacab31b8b89a2a7c033e06545942604d8c735f4ff4d15d33c77e83379d74064954cd12a5fcb1bc3ea2b6cc289ef63ae1c

    • SSDEEP

      384:aCTCJn/NHU8wde1pmZaKHQtL1YNBcYK7CB7qdgcKU:JuJnFH/w6pmmtl5WB7qm8

    Score
    10/10
    remcosremotehostcollectioncredential_accessdiscoveryevasionratstealertrojan

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • UAC bypass

      evasiontrojan

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Blocklisted process makes network request

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

      credential_accessstealer

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

      collection

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks