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Overview

overview

10

Static

static

3

IMG-WAA-00...ar.exe

windows7-x64

10

IMG-WAA-00...ar.exe

windows10-2004-x64

7

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

Sharing

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General

  • Target

    IMG-WAA-00234857845959375893759375935Fluorspar.exe

  • Size

    827KB

  • Sample

    240211-qrxpxagf2v

  • MD5

    09c0458a52c78df06359a84791181802

  • SHA1

    8e5134ac5f51b07d95ead5a673cbc347ac4665ed

  • SHA256

    261db68ba8a04022ee11a91014745c952e443fa07818fe8b9319345fc4556a39

  • SHA512

    b80140ffc77f199f43c294d78a6d364817b73c51ba3ec6aff8d342d456124c5d53cdef605eae8a19e90679fe5b6afcd197e484968da5ed011d4f2266290f2c55

  • SSDEEP

    24576:2oB5UqdCA5d8kZhZdyd+qqHvibHrBjrMGDy:2w15dRNrh8vMGDy

Score
10/10
guloaderremcosdaemondownloaderpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

Daemon

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

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-667L8K

  • 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

      IMG-WAA-00234857845959375893759375935Fluorspar.exe

    • Size

      827KB

    • MD5

      09c0458a52c78df06359a84791181802

    • SHA1

      8e5134ac5f51b07d95ead5a673cbc347ac4665ed

    • SHA256

      261db68ba8a04022ee11a91014745c952e443fa07818fe8b9319345fc4556a39

    • SHA512

      b80140ffc77f199f43c294d78a6d364817b73c51ba3ec6aff8d342d456124c5d53cdef605eae8a19e90679fe5b6afcd197e484968da5ed011d4f2266290f2c55

    • SSDEEP

      24576:2oB5UqdCA5d8kZhZdyd+qqHvibHrBjrMGDy:2w15dRNrh8vMGDy

    Score
    10/10
    guloaderremcosdaemondownloaderpersistencerat

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Remcos

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

      ratremcos

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

    • Target

      $PLUGINSDIR/System.dll

    • Size

      11KB

    • MD5

      17ed1c86bd67e78ade4712be48a7d2bd

    • SHA1

      1cc9fe86d6d6030b4dae45ecddce5907991c01a0

    • SHA256

      bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb

    • SHA512

      0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5

    • SSDEEP

      192:eY24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35Ol+Sl:E8QIl975eXqlWBrz7YLOl+

    Score
    3/10
    behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Tasks