General

  • Target

    New-Order-List-_-Specification.zip

  • Size

    1.2MB

  • Sample

    211014-h29s8agddn

  • MD5

    cf71051dc29747c297ed5b80167a64bb

  • SHA1

    8cb79a71cc683007430be4008c0b140a87acd486

  • SHA256

    9161ed38d16be56e3242e33c3ccccad63f206db7a44e172163916322de79bd65

  • SHA512

    edb28465070163a4f2f12373c3b91a6a33c8bd3e2bc5e1a90317d92a82ab7b852dd3cd7778dcc0e09b214dc407a9ce8294f415892cfedcca2200f17dc77d324e

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

OCTOBER-$$$$

C2

mgc0147.hopto.org:2930

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-3MPDYA

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Extracted

Family

remcos

Botnet

OCTOBER-$$$$

C2

mgc0147.hopto.org:2930

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-3MPDYA

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Targets

    • Target

      New Order List & Specification.scr

    • Size

      1.3MB

    • MD5

      39f59475d4b4672638a90ac2e475cd90

    • SHA1

      0fdabe47559fab6484f383fab08a451be9879f65

    • SHA256

      13a65e23f4c45234d2e73ce746b29a13b10df6f5a7508087029432aa62d458c5

    • SHA512

      f26355f9da0afa11fcc8782bad79c293735ba7a099f54b9bd60195122f9e7687ac322f93eba5d0caa7c0f2d49e7a4ce4f464bbb6cf08efb71e0cc998511b8b9d

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

    • Remcos

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Tasks