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Overview

overview

10

Static

static

3

RFQ_P0 #10...df.exe

windows7-x64

10

RFQ_P0 #10...df.exe

windows10-2004-x64

10

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

Sharing

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General

  • Target

    d6c0f9cd71770bdf458ec8102f6d99cc1ace47f50684f95b1b1791f92ee807a2

  • Size

    698KB

  • Sample

    250204-hl8wzszrdm

  • MD5

    17b1efdf3fc26fa55926e2b61bf55445

  • SHA1

    8bf2d80ca45c7ec3565508e576fd3a94143cff7f

  • SHA256

    d6c0f9cd71770bdf458ec8102f6d99cc1ace47f50684f95b1b1791f92ee807a2

  • SHA512

    c1ea0ed7a5b5e2cff25051d6f3c411543607be35f12bbc9b51cb2b4d4ef16fa7e1ea0d4f25a65a5be273f9570056ed544844dd524d3e8f7d8bfa5ae62e702868

  • SSDEEP

    12288:bmpogP7y6Rr6niPY+M0I1HFkJv+uOuiSQVuGiI21WpZL08eEErQpGCOcikx:bm7zJ6iPYK4UmuO20xiZWDL0BE3pdlx

Score
10/10
guloaderremcosremotehostcollectiondiscoverydownloaderpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

173.211.106.67:4860

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-BCSS53

  • 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

      RFQ_P0 #1037596-pdf.exe

    • Size

      788KB

    • MD5

      a1ec9b6309dd3339b21787be71057d1c

    • SHA1

      852ce81121b9ea9296ab60a4f1b30d76e767ccf8

    • SHA256

      6059b533977f51313baa0076d64645c95600ae9c03256bafb52b178840a8b4e3

    • SHA512

      f82fe64f4146c2eda3b812ca4153a3b4a762568dc0ca23c14b2467773fddcb205e8113979cbdf4206698eb459be54170ed92d081162e877903392c8b348e0ef4

    • SSDEEP

      24576:lK44p6shYK44iGM760xi1WpL07Elp/LIo:EThJMejcBZIo

    Score
    10/10
    guloaderremcosremotehostcollectiondiscoverydownloaderpersistenceratspywarestealer

    • Guloader family

      guloader

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • 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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses Microsoft Outlook accounts

      collection

    • Adds Run key to start application

      persistence

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

    • Target

      $PLUGINSDIR/System.dll

    • Size

      11KB

    • MD5

      e23600029d1b09bdb1d422fb4e46f5a6

    • SHA1

      5d64a2f6a257a98a689a3db9a087a0fd5f180096

    • SHA256

      7342b73593b3aa1b15e3731bfb1afd1961802a5c66343bac9a2c737ee94f4e38

    • SHA512

      c971f513142633ce0e6ec6a04c754a286da8016563dab368c3fac83aef81fa3e9df1003c4b63d00a46351a9d18eaa7ae7645caef172e5e1d6e29123ab864e7ac

    • SSDEEP

      192:Vm9rQDenC9VrcK7REgSWOprANupQYLRszDDH/d9CWlXo7U6Wxf:QJQEaVAK7R9SfpjpQYLRszfH/d9CWB1j

    Score
    3/10
    discovery
    behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Tasks