Malicious PDF — malware analysis report

Static analysis result for SHA-256 26963aec5e878bc2…

MALICIOUS

PDF

40.5 KB Created: 2021-05-22 16:16:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 37d9d5f16e41b20f09a33c7c50b2107b SHA-1: 15ec585bb568f897a620ecf5fd5a15427c1dbdf8 SHA-256: 26963aec5e878bc2db17a17ba987ec9888cdf6451d5237c8ea2d07294625d5d1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' or 'game hacks' for popular games. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-bedrock-server-hosting-free-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a lure to download potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7768

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-bedrock-server-hosting-free-game-hack In PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003347.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3347 29980 bytes
SHA-256: d296e79e27022fc53f967e3a22e3f5ad534e4566e8c423c44dcd480c2bd32329
font_01_sfnt_off00007233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7233 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00007bd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD2 18672 bytes
SHA-256: c45ccb7756ad31f0eb1659f3c43916dbd490baa96d6c6b1730beaec095da97be

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