Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2a61418e6fb973…

MALICIOUS

PDF

41.5 KB Created: 2021-05-10 18:35:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c2652f857e869cd6c0ebc847f8727d9d SHA-1: b52ed69657fb0edb36b2379679b0c8ee6647df0d SHA-256: 6f2a61418e6fb9738176c6dbc484e004738a097a0ad99529854d952fd5e444d5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, disguised as free game hacks or generators. The document body and embedded URLs reinforce this lure, aiming to direct the user to potentially harmful content. While no scripts were extracted, the PDF structure itself facilitates the redirection, likely leading to a further stage of malware delivery or phishing.

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/coin-master-hack-ios-app-game-hack In PDF document text
    • http://ebook.itn.ac.id/repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004777.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4777 25060 bytes
SHA-256: 61c4de5949c8a3c49a40bd2fc006c82d47da88ed0c0f58f60d6e1e13960e1de0
font_01_sfnt_off000080d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D1 17892 bytes
SHA-256: c18f05485291fd9dd2d982fa815b69c2a1f9afc9df9b250f8ccfc4cbb8514acf

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