Malicious PDF — malware analysis report

Static analysis result for SHA-256 df9d1ce32fff6727…

MALICIOUS

PDF

45.4 KB Created: 2021-06-04 02:50:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a66648dffd2e83090c137f770a027155 SHA-1: e351aba3253d720a7d35848e867241525d4c4998 SHA-256: df9d1ce32fff6727f7cf1d8ee2ddfcf2054baae14ed33a23a307caf6cdcb3fc8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs, with a high-confidence heuristic indicating a lure for game hacks or generators. The primary URL, 'https://netcdn.online/app/479516143/minecraft-com-free-game-hack', is likely intended to lead the user to a malicious download or phishing page. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit user interest in free game-related content to deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/479516143/minecraft-com-free-game-hack PDF link annotation
    • http://pengolahan.perpus.wima.ac.id/repository/pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/pubg-uc-murah_GM1330123889.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-with-no-human-verification_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_004_off000052ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52ED 26560 bytes
SHA-256: 48dcbccda802887fd0510e07b61ad7a287d5e806d1ea4be5a14e6faec630f5f3
font_01_sfnt_off0000903b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x903B 17968 bytes
SHA-256: 5bf46a6d08d3ffa684fcf656b6008ff7f2ef06acfe8c47aedee45889ac3be72f

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