Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd89134d9de28caf…

MALICIOUS

PDF

41.2 KB Created: 2021-05-14 19:33:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fd4249c7b71c5f93810e9f0f844d68de SHA-1: 020eafb6857ef10fc7cb3de3bec4c06c05471667 SHA-256: bd89134d9de28caf705ea58ee1fdc5c90458389bbbf71cef0f9631a0d0ca2039
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators' for popular games. The primary redirect URL, https://netcdn.xyz/app/406889139/coin-master-hack-tool-2021-game-hack, is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 3

  • 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.
  • 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/coin-master-hack-tool-2021-game-hack In PDF document text
    • http://maxvanberchem.org/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • http://maxvanberchem.org/images/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://maxvanberchem.org/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://maxvanberchem.org/images/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://maxvanberchem.org/images/coin-master-hack-apk-july-2021_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
font_00_sfnt_off00004c1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C1A 25296 bytes
SHA-256: 2c8043ade3c5edbd4216200f757664f97938c09fbdae39f0904c481d501246ad
font_01_sfnt_off00008546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8546 2880 bytes
SHA-256: 29ffac6ae2c225ad742d302df2deaca7764d0abb58a6f2c81d3137a4f416ba07

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