Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e4d0b52df10ffbe…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 12:11:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 909b1dd640cca56320aa30373e527db4 SHA-1: 99c1dd8d57a06b7cb8195fbe147b71b34cf5ebf7 SHA-256: 8e4d0b52df10ffbea523d2baee35970fcb5a770457517654e776911c62eeade0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and text referencing game hacks and free items for popular games like Roblox and Coin Master, aiming to trick users into clicking malicious URLs. The primary URL, http://netcdn.co/app/431946152/free-hair-roblox-edit-avatar-game-hack, is identified as a lure for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a potential for JavaScript execution or redirection to a malicious site for further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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 http://netcdn.co/app/431946152/free-hair-roblox-edit-avatar-game-hack PDF link annotation
    • https://jdclassicautoparts.com/image/data/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/hack-roblox-2021-descargar_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-robux-hack-prohosts-org_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-followers-for-tiktok_GM835599320.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/install-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB8 22548 bytes
SHA-256: bbf299832786db6b94b0b5c5415e5d846af30930d9fb599f0b1b112639cfe624
font_01_sfnt_off00006106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6106 19164 bytes
SHA-256: 2c686241fa470752bc6d32609eb627dacda2de5a8d4ee70299bfb05b895c546f