Overview

overview

10

Static

static

3

86d9d88a4a...fN.exe

windows7-x64

10

86d9d88a4a...fN.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    86d9d88a4ad81b9e0b24ad0ed943fc2ff57724ed850a3a731fff7e354a75880fN

  • Size

    1.3MB

  • Sample

    240921-njtl6szeqk

  • MD5

    b65ebd99cc7c2d3edb769ca10b161860

  • SHA1

    794add2168ddeb0bf878de65a4d36c601c8d08b1

  • SHA256

    86d9d88a4ad81b9e0b24ad0ed943fc2ff57724ed850a3a731fff7e354a75880f

  • SHA512

    417d39638c0d3c98cb017a95bf2bcb3d48a81ca212728f51bd1784393153c5dd4f26b9c6edecd24cf50b72ab909329018145c6555c79cc8872c383da90c00421

  • SSDEEP

    24576:wDqqL6uZ5XCPss2b21xX2/h9LKkhayrblnWem/tm9GWgY3MhYuKnBpdOh1EUdRGi:w+q5WX1xIpThayr5h9GWgY3MhlKnBpYp

Score
10/10
njratremcoslocalhostdiscoveryexecutionpersistencerattrojan

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://asboywnrihlvdsbpigftigzyb20gyw5vbnltb3vz.ru/cmfwe2
exe.dropper

https://drive.google.com/uc?export=download&id=

Extracted

Family

remcos

Botnet

localhost

C2

46.8.221.61:443

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-M7U8MB

  • 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

Targets

    • Target

      86d9d88a4ad81b9e0b24ad0ed943fc2ff57724ed850a3a731fff7e354a75880fN

    • Size

      1.3MB

    • MD5

      b65ebd99cc7c2d3edb769ca10b161860

    • SHA1

      794add2168ddeb0bf878de65a4d36c601c8d08b1

    • SHA256

      86d9d88a4ad81b9e0b24ad0ed943fc2ff57724ed850a3a731fff7e354a75880f

    • SHA512

      417d39638c0d3c98cb017a95bf2bcb3d48a81ca212728f51bd1784393153c5dd4f26b9c6edecd24cf50b72ab909329018145c6555c79cc8872c383da90c00421

    • SSDEEP

      24576:wDqqL6uZ5XCPss2b21xX2/h9LKkhayrblnWem/tm9GWgY3MhYuKnBpdOh1EUdRGi:w+q5WX1xIpThayr5h9GWgY3MhlKnBpYp

    Score
    10/10
    discoveryexecutionpersistencenjratremcoslocalhostrattrojan

    • Remcos

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

      ratremcos

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Blocklisted process makes network request

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

      persistence

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks