Malicious PDF — malware analysis report

Static analysis result for SHA-256 72be3e01f4bb958a…

MALICIOUS

PDF

45.0 KB Created: 2021-05-18 01:30:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 0d1f6ea258d3e8e432ff95429ab9dfc4 SHA-1: d376e5a6b8c1ea30648fe516ee8ae04170162d9a SHA-256: 72be3e01f4bb958a151c20b78a92b28020bc99256e02c713df43ade0970512f6
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/431946152/how-to-get-free-robux-no-verification-2021-game-hack In PDF document text
    • http://reggieslockandkey.com/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-robux-on-phone-2021_GM431946152.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_off00004a81.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A81 28016 bytes
SHA-256: aba17c89455c6921bbbd11db632d724923e4d1f75f1fdb4cb24fd1918d05282e
font_01_sfnt_off00008ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC3 19164 bytes
SHA-256: 96effbdae210045e90f33644c7199b62eda4c51e6e40441412be2e574896d09f

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