Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb53cfc64972915e…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 05:35:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1e4720c446a3a6305629e39ad6a8f391 SHA-1: c8931922a876e6637e16a912c875b769aff87e4f SHA-256: eb53cfc64972915eaf581b8d9a29bdf2dfa5a9e9f97841c4e76c9e45eefd2716
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'free game hacks' or similar lures. The primary malicious URL identified is http://netcdn.tw/app/479516143/how-to-get-minecraft-windows-10-edition-for-free-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate it's designed to lead the user to malicious infrastructure, likely for a drive-by download or further phishing attempt.

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-windows-10-edition-for-free-game-hack In PDF document text
    • http://library.umla.ac.id/repository/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-robux-please_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/tiktok-free-view-jelly-fruit_GM835599320.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/400-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/roblox-system_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-hack-pc-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-to-get-free-cards-for-coin-master_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_off00003284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3284 21656 bytes
SHA-256: c27b5c75990ec68fd3e65cf2aa025c8ed5a5bf528c1b62b8835b813416953e89
font_01_sfnt_off000061cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CB 18812 bytes
SHA-256: f716e881059f29ffa9bbe1d090f6d126727f740b51ca9620c60dab13ccdfe3d8

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