Malicious PDF — malware analysis report

Static analysis result for SHA-256 44a3929433e76e32…

MALICIOUS

PDF

44.1 KB Created: 2021-05-13 12:19:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7bbe7dfe0daebb5f3da7427406e7bb03 SHA-1: 40f66fb0a54747da6b82cdeeda5145d557d6379a SHA-256: 44a3929433e76e3291b5ef22c2f28bb7cc3c4ba22a5d9ac4dcd0c28cd8b582a5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that point to known malicious redirectors, disguised as game-related content. The primary lure URL is "https://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-ps4-2021-game-hack", which is associated with a "free generator / game hack" theme. The presence of a visual download button and the ML classifier's high confidence further support the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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-to-get-minecraft-for-free-on-ps4-2021-game-hack In PDF document text
    • http://balkanin.com/images/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/doctor-louie-roblox_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/minecraft-116-free_GM479516143.pdfIn PDF document text
    • http://balkanin.com/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-online_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/free-minecraft-skin-packs_GM479516143.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_off00004bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BBA 30700 bytes
SHA-256: 072f1ded36fd6d6bcc39b16feb65b6880ab2a31a40daf38559ad7f6884266194
font_01_sfnt_off0000899c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x899C 18492 bytes
SHA-256: 59dadd7e4280a1ed716b01789963ead00ba75883d4e16a7974e6139f8c4f7ce5

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