General

  • Target

    JaffaCakes118_9273e6c9157cc1846b6b236bc59914161ec91fdfdfe1979090bfabdf0ad06543

  • Size

    1.7MB

  • Sample

    241224-wm54datje1

  • MD5

    82b480305f0c36eb7d7e72f00125bb82

  • SHA1

    9af3302581d53e0eafd60c5f56cf3bac2198ab16

  • SHA256

    9273e6c9157cc1846b6b236bc59914161ec91fdfdfe1979090bfabdf0ad06543

  • SHA512

    026b8a61286b1d0913be87fa9807a11b2c31f55c806ce011e17d3352da97ef212032b2bec45ec7acc4f4d8c5b09457754b86b0718ef5c07cf7fdaee6b4d4b985

  • SSDEEP

    24576:AYPei+Hwo+bgwhHx2GQf6fSWnYfUjaaBqiJaHhdFjcCSVA86KfRduholMjkMh/s9:ABi+ZdwhHx2X/WnYtrAYjnynTOR67

Malware Config

Extracted

Family

remcos

Version

2.3.0 Pro

Botnet

RemoteHost

C2

daya4659.ddns.net:8282

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    3

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-S1KNPZ

  • 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

  • take_screenshot_title

    wikipedia;solitaire;

Extracted

Family

webmonitor

C2

snpandey4659.wm01.to:443

Attributes
  • config_key

    sFitr5r1ExCJl86X6inyc4qxlzwyw8fK

  • private_key

    t1wG88poq

  • url_path

    /recv4.php

Targets

    • Target

      2ef1aedbfa1d92513e8a45015b59cdd649eb7aac25e420b18c5d564c30066ea7

    • Size

      2.9MB

    • MD5

      21948d42c2c1e49cadea88e80dfe6880

    • SHA1

      d7f6837f76f3785eef87048c4a28c4b664f99dbd

    • SHA256

      2ef1aedbfa1d92513e8a45015b59cdd649eb7aac25e420b18c5d564c30066ea7

    • SHA512

      14054453d259e53d88881a6b50061960befc06309fc14d1f557d5cb3cbc2ac7e855a805cc483915e8b5ce737c328dd03a8cfbc9a68a670e0238896009befa863

    • SSDEEP

      49152:hh+ZkldoPK8Yad7cwj644Mh+ZkldoPK8YaLDNcm:C2cPK8YwjE2cPK8f

    • Remcos

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

    • Remcos family

    • RevcodeRat, WebMonitorRat

      WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.

    • WebMonitor payload

    • Webmonitor family

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks