Malicious PDF — malware analysis report

Static analysis result for SHA-256 df042a36026dd8e0…

MALICIOUS

PDF

34.8 KB Created: 2021-07-08 21:16:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b17b372bb9a644245c5c8750b9c0a26f SHA-1: af6b40a3f2db0fc38b4113a1c9f4c332d340a084 SHA-256: df042a36026dd8e012d1af376deb9003c1ccb659aacd55401a0ef9e7c4db31d9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links to external websites that promise free in-game currency or hacks for popular games like Coin Master and Roblox. The primary link, http://netcdn.tw/app/406889139/master-free-spin-and-coin-links-html-m-1-game-hack, is flagged as a redirector lure. The document's content and heuristics suggest it's designed to trick users into visiting these sites, likely for phishing, ad fraud, or to download further malicious content.

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.tw/app/406889139/master-free-spin-and-coin-links-html-m-1-game-hack PDF link annotation
    • http://stitqi.ac.id/website//repository/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/serverside-roblox-hack_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/installer-un-cheat-roblox-pour-avoir-largent-illimit_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/tiktok-free-like_GM835599320.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-bit-ly_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-gui-hacks_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-cothes-in-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-tips_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/cm-free-spins-and-coins_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
stream_002_off00002f51.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F51 23044 bytes
SHA-256: 600f88bd790a06d9aa0b9ff18a94a5d7a14ceb6bd52c5385b0d413f0978a458e
font_01_sfnt_off00006359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6359 18956 bytes
SHA-256: 85e071f9d2d9aba7decae53ba293d7c98952cf6adb5dc147492857e3bbfc39de

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