Overview

overview

10

Static

static

3

PO_115142pdf.exe

windows10-2004-x64

10

$PLUGINSDI...em.dll

windows10-2004-x64

3

Sharing

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General

  • Target

    PO_115142pdf.exe

  • Size

    917KB

  • Sample

    250404-blppsazlw6

  • MD5

    d09c95b9fecad316b637740b3f869318

  • SHA1

    6e04663afafacc5dd89425a771a180eebe689349

  • SHA256

    81aba97e6129afeb03193f6cd4f57faa50997c40ef62ecf2b293ea54785b698e

  • SHA512

    237f8cb5d5f5221370fd1677a8eafb7f6fad7878887a6bbefe7657ef4a5db3f52a2a10d5ba2931087473376b719a97f890f372786ae50f57f14ece1909b8bbf6

  • SSDEEP

    12288:wYimDBA8NFYJLxcfB3sfrF0waNaYIxe6voaTspllnur5V90f:wYimDBXWJLSZ+eNBSe6BTwldG5V90f

Score
10/10
guloaderremcosremotehostdiscoverydownloaderpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

193.222.96.222:2404

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-QZQ9S9

  • 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

      PO_115142pdf.exe

    • Size

      917KB

    • MD5

      d09c95b9fecad316b637740b3f869318

    • SHA1

      6e04663afafacc5dd89425a771a180eebe689349

    • SHA256

      81aba97e6129afeb03193f6cd4f57faa50997c40ef62ecf2b293ea54785b698e

    • SHA512

      237f8cb5d5f5221370fd1677a8eafb7f6fad7878887a6bbefe7657ef4a5db3f52a2a10d5ba2931087473376b719a97f890f372786ae50f57f14ece1909b8bbf6

    • SSDEEP

      12288:wYimDBA8NFYJLxcfB3sfrF0waNaYIxe6voaTspllnur5V90f:wYimDBXWJLSZ+eNBSe6BTwldG5V90f

    Score
    10/10
    guloaderremcosremotehostdiscoverydownloaderpersistencerat

    • 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

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      cff85c549d536f651d4fb8387f1976f2

    • SHA1

      d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

    • SHA256

      8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

    • SHA512

      531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

    • SSDEEP

      192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr

    Score
    3/10
    discovery
    behavioral2

MITRE ATT&CK Enterprise v15

Tasks