Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2d22d210b0d3f0e…

MALICIOUS

PDF

41.3 KB Created: 2021-05-14 08:38:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b0aeb3007332ef2a1d1c1d592e72f9ed SHA-1: 2f67631b7c7f8296aa8db41b31a7a9a3d696eed2 SHA-256: d2d22d210b0d3f0ec8429feb8849e186232a10b8b3f478203f9ec39de3411460
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a 'free generator' or 'game hack'. These links redirect to malicious infrastructure, indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/get-free-coin-master-coins-game-hack In PDF document text
    • http://arthakranti.org/images/mcpe-com_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/spins-coin-master_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-ultra-attack-hack_GM406889139.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_off000046cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46CF 26016 bytes
SHA-256: a311bdc8aadf440c8648be166fd493c5f6f034ea9ebe5df7750b801cc4fbbaad
font_01_sfnt_off000080db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DB 17712 bytes
SHA-256: 21945d37724c890dd621455a00f6108c8bb3199d41d839a53701429653b6b663

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