Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a123912b4c681b3…

MALICIOUS

PDF

45.1 KB Created: 2021-05-19 00:28:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f95b3753a4cb49601554fa6a7631d88 SHA-1: 47b339b5538c7348b6aadcf7576494ef4d7eca3b SHA-256: 5a123912b4c681b3acb8cd90e9bfd293eeb4ed7c2479ccdf05686985b61bdcac
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links designed to lure users into downloading "game hacks" or "free generators," redirecting to malicious infrastructure. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-java-edition-free-download-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to exploit user interest in free game-related content for malicious purposes, likely leading to further malware downloads or scams.

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/479516143/minecraft-java-edition-free-download-game-hack In PDF document text
    • http://repository.poliven.ac.id//repository/how-to-get-free-spins-grom-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/www-robux-com_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master--hack_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-official-website_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id//repository/how-to-scam-on-roblox_GM431946152.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/mcpe-116_GM479516143.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://repository.poliven.ac.id/repository/coin-master-spins-free-2021_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_off00004bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BB6 28928 bytes
SHA-256: da05a2476b8a4616df74ccca6f4ab3e020879df1b448be27d627393f16994d8b
font_01_sfnt_off00008d23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D23 18572 bytes
SHA-256: be0be2e0bd1478f571662982334261f36152068b9a395b749ff064ff651796b1

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