Overview

overview

10

Static

static

1

package011.vbs

windows7-x64

8

package011.vbs

windows10-2004-x64

10

Sharing

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General

  • Target
    package011.vbs
  • Size 150KB
  • Sample240712-vf35rssbnm
  • SHA256 a8e815c5920b41708193a747a8635f3a10d5fc933b6743177b5353a01ad76717
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosxwormnutsdogexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

Version

  • 5.0

Mutex

  • UxOlPOZZNwNV9srk

Attributes
  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/Dh8E7H3R

aes.plain

Extracted

Family

  • remcos

Botnet

  • nutsDOG

C2

  • remgod54.duckdns.org:9898

  • backto54.duckdns.org:9897

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    words.exe

  • copy_folder

    word

  • 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

    Rmcvbwxcdfgbfdfdddddddddddddddddderrfdv-TTAN7Q

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    homedepot,etsy,checkout

Targets

    • Target
      package011.vbs
    • Size 150KB
    • SHA256 a8e815c5920b41708193a747a8635f3a10d5fc933b6743177b5353a01ad76717
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    executionremcosxwormnutsdogpersistencerattrojan

    • Detect Xworm Payload

    • Remcos

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

      ratremcos

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • 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