Malicious PDF — malware analysis report

Static analysis result for SHA-256 93873a7d5d9ecd79…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 17:20:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a6646d7db42e68f526f9dc2ed3ac9218 SHA-1: 85211b185de7244a9e65f457f269dd207bbff495 SHA-256: 93873a7d5d9ecd79edc39e52149234f28cdc078435db9696ad408641981c2eef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one identified as a malicious redirector. The document body and heuristics indicate a lure for 'free generators' or 'game hacks', specifically mentioning Minecraft. The primary malicious URL identified is http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-ipad-game-hack, which is likely used to deliver a second-stage payload or phish for credentials.

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 http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-ipad-game-hack In PDF document text
    • https://www.itc-nekretnine.hr/files/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/how-ro-get-free-robux-with-pastebin_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/best-hack-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/tiktok-free-view-year_GM835599320.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-robux-hack-youtube_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-game-2021-free-spin-link_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_off00003089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3089 22972 bytes
SHA-256: ed53e9b6eb71af9afe6936b6f40d370e245f006cc576b4bfe0f3d93b6fd085bc
font_01_sfnt_off000062f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F5 18512 bytes
SHA-256: 9a5f2a3eec7ab4d8158ce442c8139f99f1f1cb7fd7be9151c1ebe1a4eaf5a268

Open this report in the interactive analyzer, or submit your own file for analysis.