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Overview

overview

10

Static

static

1

966aac44a4...d4.exe

windows7-x64

10

966aac44a4...d4.exe

windows10-2004-x64

10

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General

  • Target

    966aac44a4b149602aa9f300ba03e888164108c0d101feb75f5e5d94f4c1c5d4

  • Size

    1.9MB

  • Sample

    250322-yvrxtszsbx

  • MD5

    2d68d3b9130925d7e5bc60ee9c7d153c

  • SHA1

    1c3d2f0827b15fa6e7593ca1c5f2d745b1094019

  • SHA256

    966aac44a4b149602aa9f300ba03e888164108c0d101feb75f5e5d94f4c1c5d4

  • SHA512

    2f23d4d8f2799d93f3977d42acb10ce317f94a53fd49005b637ccce0a4b0ba429053258880d8b564874bea36cdfa167f68798df2171b78518a6a45b39df07f61

  • SSDEEP

    24576:9D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6j1:9F+QrFUBgq25eKu6j1

Score
10/10
remcoshostdiscoverypersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      966aac44a4b149602aa9f300ba03e888164108c0d101feb75f5e5d94f4c1c5d4

    • Size

      1.9MB

    • MD5

      2d68d3b9130925d7e5bc60ee9c7d153c

    • SHA1

      1c3d2f0827b15fa6e7593ca1c5f2d745b1094019

    • SHA256

      966aac44a4b149602aa9f300ba03e888164108c0d101feb75f5e5d94f4c1c5d4

    • SHA512

      2f23d4d8f2799d93f3977d42acb10ce317f94a53fd49005b637ccce0a4b0ba429053258880d8b564874bea36cdfa167f68798df2171b78518a6a45b39df07f61

    • SSDEEP

      24576:9D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6j1:9F+QrFUBgq25eKu6j1

    Score
    10/10
    remcoshostdiscoverypersistenceratspywarestealer

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks