Malicious PDF — malware analysis report

Static analysis result for SHA-256 a85a84fb8d8b3eb5…

MALICIOUS

PDF

33.0 KB Created: 2021-07-19 03:51:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b9624edd52a86ab0874fdc14e8107734 SHA-1: 12eaa373dc80f7a07c0629e0cc87d549d057182a SHA-256: a85a84fb8d8b3eb59848cecc64e92577cc6001a16db1d2733a73320cb4e8d9dc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action button, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. The document body and embedded URLs point towards a lure for a fake Minecraft generator, likely leading to malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/minecraft-download-free-download-game-hack In PDF document text
    • http://nod74.ru/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://nod74.ru/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://nod74.ru/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://nod74.ru/images/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • http://nod74.ru/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://nod74.ru/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://nod74.ru/images/free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • http://nod74.ru/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://nod74.ru/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://nod74.ru/images/play-minecraft-for-free_GM479516143.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_off00002ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE6 22552 bytes
SHA-256: 7fb6a077be721379411de9082e7bc11b1d0f0e54d26184c72b99bbe8b38b9ded
font_01_sfnt_off00005f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F16 18292 bytes
SHA-256: bcf6477408162be3b167f843e68a68979a000ee483b53557047313ee62fe1046

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