Overview

overview

10

Static

static

1

1111.hta

windows7-x64

10

1111.hta

windows10-2004-x64

10

Sharing

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General

  • Target

    1111.hta

  • Size

    2KB

  • Sample

    250103-ptwd7axkbn

  • MD5

    91b57eb5e0925c7522374b0c64902dfd

  • SHA1

    437da5eb27efeb38a9b7f804066205964a345a33

  • SHA256

    e5f2879072cdd3e4905f5fa8017be818d2c61f718d0fd322196e9cd54062ba4a

  • SHA512

    68dc36ae7ba35fb736677a7b179cfdea7b93ff7cb95ea27ffec9bde61cfc3358148cb612a33450b2b5ce452bf47077a8ed6e6d5b497e027b05415a89ec5b76f4

Score
10/10
remcoshello world!discoveryexecutionpersistencerat

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://bitbucket.org/docspaceplace/test2/downloads/1.exe

Extracted

Family

remcos

Botnet

Hello World!

C2

46.175.167.116:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Realtek Driver.exe

  • copy_folder

    Realtek Audio

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Realtek Audio-J15M0S

  • 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

      1111.hta

    • Size

      2KB

    • MD5

      91b57eb5e0925c7522374b0c64902dfd

    • SHA1

      437da5eb27efeb38a9b7f804066205964a345a33

    • SHA256

      e5f2879072cdd3e4905f5fa8017be818d2c61f718d0fd322196e9cd54062ba4a

    • SHA512

      68dc36ae7ba35fb736677a7b179cfdea7b93ff7cb95ea27ffec9bde61cfc3358148cb612a33450b2b5ce452bf47077a8ed6e6d5b497e027b05415a89ec5b76f4

    Score
    10/10
    discoveryexecutionremcoshello world!persistencerat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Adds policy Run key to start application

      persistence

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks