Overview

overview

10

Static

static

3

d4d15d78e2...10.exe

windows7-x64

10

d4d15d78e2...10.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    d4d15d78e292869c5488ddc05e227f10

  • Size

    1.3MB

  • Sample

    240319-bdw4wsdb39

  • MD5

    d4d15d78e292869c5488ddc05e227f10

  • SHA1

    9d0416d6bf68ed1a088c010046cd2fad4b7d32dd

  • SHA256

    fa66310d09441ef074ebec4df91a8210a710a44c5ddb7d7040a1aabce1679f59

  • SHA512

    52619ebcec38ceec0a73e795cd5068fc7457b339931cd46bfa396e1c463cecf29c48106a6b30f6e0f45fce0a981c18bd436954b7e4559f25b5cf2705d83e85a3

  • SSDEEP

    24576:rAOcZAhwaU3m5RJ8+LhdXpWxIhjKLeZGEyYDSZaC/+YxkJkscoPE+FQYcXGI9y:tuaC3+z5yFeZGEytZ/+wodco8+6T9y

Score
10/10
remcoswetransferpersistencerat

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

WeTransfer

C2

mrbigs.hopto.org:1707

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-C1GVMP

  • 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

WeTransfer

C2

mrbigs.hopto.org:1707

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-C1GVMP

  • 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

      d4d15d78e292869c5488ddc05e227f10

    • Size

      1.3MB

    • MD5

      d4d15d78e292869c5488ddc05e227f10

    • SHA1

      9d0416d6bf68ed1a088c010046cd2fad4b7d32dd

    • SHA256

      fa66310d09441ef074ebec4df91a8210a710a44c5ddb7d7040a1aabce1679f59

    • SHA512

      52619ebcec38ceec0a73e795cd5068fc7457b339931cd46bfa396e1c463cecf29c48106a6b30f6e0f45fce0a981c18bd436954b7e4559f25b5cf2705d83e85a3

    • SSDEEP

      24576:rAOcZAhwaU3m5RJ8+LhdXpWxIhjKLeZGEyYDSZaC/+YxkJkscoPE+FQYcXGI9y:tuaC3+z5yFeZGEytZ/+wodco8+6T9y

    Score
    10/10
    remcoswetransferpersistencerat

    • Remcos

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

      ratremcos

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks