Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ea1046d52868b41…

MALICIOUS

PDF

44.5 KB Created: 2021-06-10 18:49:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b2dd4b5ea16bc5be740b0935546ae047 SHA-1: 75a4bbfdaae76dce83ab0a63cb0cd18dd70dd9e6 SHA-256: 1ea1046d52868b4179b3c310bb0550d3c50b9f1346a39f901c24ae24ae54c1fa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a fake CAPTCHA lure to entice users into clicking a link. The embedded URL, https://netcdn.tw/app/431946152/roblox-catalog-hack-script-game-hack, likely leads to the download of a second-stage payload. The document's structure and the presence of multiple related URLs suggest a phishing or scam campaign aimed at tricking users into executing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/roblox-catalog-hack-script-game-hack PDF link annotation
    • https://reggieslockandkey.com/images/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/play-coin-master-online-free_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/raindrop-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/get-free-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-i-39_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5198 24444 bytes
SHA-256: e358902d54261c5d1525fe54559801f563c29b8c8c1a895aff5124421377c723
font_01_sfnt_off00008953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8953 18872 bytes
SHA-256: 848a3c87e7b47dc5de54d1eb2ca9f99aa900377a433cfbc72dbae64410715335

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