Overview

overview

10

Static

static

1

sostener.vbs

windows7-x64

10

sostener.vbs

windows10-2004-x64

10

Sharing

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General

  • Target

    sostener.vbs

  • Size

    657KB

  • Sample

    241111-v5cn4ssfph

  • MD5

    dcf03de1f9900772291ba614f6471c92

  • SHA1

    a3f0d605b6b3919a781a7cd0323ea30f3183c995

  • SHA256

    2a5670019227fe42b858de1bc5800c89816f826e76b71eef7b63d4ca703eb025

  • SHA512

    9291c4ae66b89be5f01077bca008d67735b3b5dc809499ef780270a8517b4ac7b58cab52d133f74f630e833c6ca2ebd9074d1c9a8b2c2e783c1e7bb6fb8b8714

  • SSDEEP

    192:gmvvU6/OkFpbN0RwdU+0xIuntFwYvOL8bk5b8mQO5/d:zcQOkc59I8bQf

Score
10/10
remcosnlkdefense_evasiondiscoveryexecutionrat

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://pastebin.com/raw/0FK5ax2D

Extracted

Family

remcos

Botnet

Nlk

C2

comandoespecial2023.duckdns.org:8888

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-3PWW8O

  • 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

      sostener.vbs

    • Size

      657KB

    • MD5

      dcf03de1f9900772291ba614f6471c92

    • SHA1

      a3f0d605b6b3919a781a7cd0323ea30f3183c995

    • SHA256

      2a5670019227fe42b858de1bc5800c89816f826e76b71eef7b63d4ca703eb025

    • SHA512

      9291c4ae66b89be5f01077bca008d67735b3b5dc809499ef780270a8517b4ac7b58cab52d133f74f630e833c6ca2ebd9074d1c9a8b2c2e783c1e7bb6fb8b8714

    • SSDEEP

      192:gmvvU6/OkFpbN0RwdU+0xIuntFwYvOL8bk5b8mQO5/d:zcQOkc59I8bQf

    Score
    10/10
    defense_evasiondiscoveryexecutionremcosnlkrat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

      execution

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Checks computer location settings

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

    • Legitimate hosting services abused for malware hosting/C2

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks