Malicious PDF — malware analysis report

Static analysis result for SHA-256 8de60588f3a55e12…

MALICIOUS

PDF

43.3 KB Created: 2021-05-11 02:33:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f7e8a8e9f0d228c7d5ac3249902ca070 SHA-1: 2a6f5368ee06b5d3eb40d5646bc94a467d287a8e SHA-256: 8de60588f3a55e12bb3dfc4402bdcc27d3651a59c750433275c48da12a5fa2af
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free downloads, directing users to external URLs. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-java-edition-free-download-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a social engineering tactic to redirect users to potentially malicious content or initiate downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/479516143/minecraft-java-edition-free-download-game-hack PDF link annotation
    • https://cleansui-home.com.tw/image/data/files/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/microsoft-roblox_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-robux-just-enter-username_GM431946152.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_003_off00004c3a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C3A 25696 bytes
SHA-256: 14b496f0361d45201550163e84c3926b339547c9b67b282e13bbfaf26e011ac8
font_01_sfnt_off00008648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8648 18572 bytes
SHA-256: be0be2e0bd1478f571662982334261f36152068b9a395b749ff064ff651796b1

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