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

    15.4MB

  • Sample

    241003-3pnqfashjj

  • MD5

    44913cf72b3ddfb4a9944106448627de

  • SHA1

    85a8a9607ffd5cb1a8b98454bc0f1f402235449e

  • SHA256

    0326f574a5085f27933c0cfbbec4854bf9f6d0ce10413084eadecd9593b18ba5

  • SHA512

    773aa0c83c462c49587d31c4f598cc7aa5b6e45a3adf2fd41037897525f3b4371456812e0bf5a30e658d71f4c33cbf7f3bc04563021e645706231fd182b3f040

  • SSDEEP

    192:9HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHB:B2oGsecM+F3

Score
10/10
remcosremotehostdiscoveryexecutionrat

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://pastebin.com/raw/V9y5Q5vv

Extracted

Family

remcos

Botnet

RemoteHost

C2

remcosoct.duckdns.org:4576

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-OY344C

  • 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

      15.4MB

    • MD5

      44913cf72b3ddfb4a9944106448627de

    • SHA1

      85a8a9607ffd5cb1a8b98454bc0f1f402235449e

    • SHA256

      0326f574a5085f27933c0cfbbec4854bf9f6d0ce10413084eadecd9593b18ba5

    • SHA512

      773aa0c83c462c49587d31c4f598cc7aa5b6e45a3adf2fd41037897525f3b4371456812e0bf5a30e658d71f4c33cbf7f3bc04563021e645706231fd182b3f040

    • SSDEEP

      192:9HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHB:B2oGsecM+F3

    Score
    10/10
    executionremcosremotehostdiscoveryrat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks