Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7b1430bafb9790c…

MALICIOUS

PDF

44.3 KB Created: 2021-06-04 02:32:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f01c9ce0b2fa77bf5c12739eb3226f8d SHA-1: 927be3252f69606e4b3fd9bb4cdb805b07037911 SHA-256: d7b1430bafb9790c13b76df822a6ef9fb6404d3920de27912ec23e1b09776a1a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'free Robux' and 'game hacks' to entice users. It contains multiple embedded URLs that redirect to malicious infrastructure, specifically identified as a known malicious redirector. The document's primary function appears to be directing users to potentially harmful websites for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/how-to-get-free-robux-game-hack In PDF document text
    • http://library.imz.or.id/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/master-free-spin_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-get-free-airpods-tiktok_GM835599320.pdfIn PDF document text
    • http://library.imz.or.id/repository/como-hackear-el-juego-coin-master-en-espaol_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_off00005122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5122 24888 bytes
SHA-256: 0ff6be54491d1ba02adab070bc9e2f91dca42f11d549c87eeacf7ae85eebb12a
font_01_sfnt_off00008a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A85 18280 bytes
SHA-256: 2eeeedfcb2f224ab556fa0ab031baeab03f86dcbcf90e3baaaf5b6d88536dec3