Malicious PDF — malware analysis report

Static analysis result for SHA-256 27271eafdff19283…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 12:08:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b277b22a8d9bf609b609ba25f926a862 SHA-1: 7fc0d785512c6a7ef932ac8d7114f201bdec22d0 SHA-256: 27271eafdff192833d075b1db58bef02cba3edd8e0e3b5e8752a9631ed95c5cf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple URLs, including one that directly links to a download for 'how-do-you-get-minecraft-for-free-game-hack'. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external URIs and the overall theme suggest a phishing or scam attempt to trick users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/479516143/how-do-you-get-minecraft-for-free-game-hack In PDF document text
    • http://digilib-ppsunisma.ac.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/speed-hack-on-roblox-with-cherk-ashed_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-sur-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-hack-roblox-accounts-in-game_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-exploit-yoru-on-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/enchantix-high-royale-high-roblox-hack-baking_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-2021-december_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-robux-on-android-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/rbx-hut-promo-codes_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-top-model-cheats_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-dragon-ball-online-stats-hack_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
font_00_sfnt_off00003007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3007 21716 bytes
SHA-256: 1efabfcf71a4a0e31da879f928e091abd6361a5f476dc8722e8a2771d5978213
font_01_sfnt_off00005fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB1 18632 bytes
SHA-256: e84ad285f341e438f0b586e1c1e30148e409f2a1e76744d3c2f453220977198e

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