Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9b7828dd492f72…

MALICIOUS

PDF

32.0 KB Created: 2021-07-19 09:54:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b0c64e05f27165efc79791ee4086fa94 SHA-1: 0b33ff7e7705a0f904705a1fe43c3fc6bfd0a517 SHA-256: ae9b7828dd492f7211b0638bd2f2d879b0f73e079175af2cc3eb32f05dd7b862
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically advertising 'game hacks' and 'generators'. The document body also contains similar lures and a call-to-action button, suggesting a phishing or social engineering attempt. No scripts were extracted, but the presence of malicious redirector links and the lure indicate a high likelihood of leading the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9469

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-name-tag-hacks-game-hack In PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/robux-free-co_GM431946152.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/minecraft-free-version_GM479516143.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/minecraft-pe-free-download-ios-no-jailbreak_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_off000028fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28FD 22652 bytes
SHA-256: 084e18f501a5e27f61212b95755a3659aff30a19d3209fb524febf15c085be20
font_01_sfnt_off00005b7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7C 18288 bytes
SHA-256: eb7ed4260d6d64c3cd9f3242d6af3157cea31df7eff6e4be90ec8e6c005c47d1

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