Malicious PDF — malware analysis report

Static analysis result for SHA-256 391de67789a5f52b…

MALICIOUS

PDF

44.6 KB Created: 2021-05-12 09:38:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 39a01b30cc2b364243cc9969bcf0fc12 SHA-1: 58d4866764eeef2a881a98220181b74638a3a8a4 SHA-256: 391de67789a5f52b3556f5924dc9ecd83bf5a70fd2defad4ab2dcaa243f86d8e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically promoting "game hacks" and "generators". The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-spin-hack-link-game-hack, which is associated with a high-risk score. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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/coin-master-spin-hack-link-game-hack In PDF document text
    • http://eddieblum.nl/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://eddieblum.nl/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/robux-generators-that-actually-work_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/grabpoints-robux_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://eddieblum.nl/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://eddieblum.nl/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://eddieblum.nl/images/80-free-spins-coin-master_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_off0000497e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x497E 31024 bytes
SHA-256: c8137c50f5c3db4a54913c630f8a182428194154aade6a182d84735e5ed4e56a
font_01_sfnt_off00008d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D54 17892 bytes
SHA-256: 7f3ff29013eb9f1a81458cbc85dd3db40ecf793c6bb68bdfdc199744a029032c

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