Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2bb8924519f796…

MALICIOUS

PDF

41.5 KB Created: 2021-05-16 05:24:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 0187799552de1e3802c7f9642ae5311a SHA-1: bc9a4da740e48b5b075cba26612d52602b91a4b9 SHA-256: af2bb8924519f796313786c1d452357f0f2305c934ebcab12d0ce9e678337534
160 Risk Score

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/479516143/how-can-i-get-minecraft-for-free-game-hack In PDF document text
    • https://www.donjastubica.hr/files/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • https://www.donjastubica.hr/files/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://www.donjastubica.hr/files/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.donjastubica.hr/files/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.donjastubica.hr/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.donjastubica.hr/files/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://www.donjastubica.hr/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://www.donjastubica.hr/files/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://www.donjastubica.hr/files/hack-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/free-spins-and-coins-coin-master-facebook_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_off00004a2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A2B 24160 bytes
SHA-256: ec64fca6ad90ec2e24f56b9a03d192748e5a1ca0684309efa98db2f24f2af1b2
font_01_sfnt_off00008146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8146 17872 bytes
SHA-256: 1780a854c5ecbb5a6dec58bf2aafa1430e4c4f4d2029e52ddf9488ce5dd697b0

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