Malicious PDF — malware analysis report

Static analysis result for SHA-256 286fd56d52342d72…

MALICIOUS

PDF

42.9 KB Created: 2021-05-16 02:19:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 57dbc463dc5f1037a88d1392073e5bb8 SHA-1: 7962fd5c94b1eff19e0a712467c40dee34843fee SHA-256: 286fd56d52342d72b7923dbbb6e8a9221c7e579d0198cfbfe4a00dddf5e833b5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The primary lure directs users to 'https://netcdn.xyz/app/431946152/roblox-free-wings-game-hack', which is flagged as malicious. The presence of embedded URLs and the ML classifier's high confidence score indicate a deliberate attempt to lead users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/roblox-free-wings-game-hack In PDF document text
    • http://arthakranti.org/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/rbx-website_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/robux-earning-websites_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/www-free-robux-com_GM431946152.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
stream_003_off0000491e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x491E 26336 bytes
SHA-256: 783b70c728093985e0e17085ea099f6e27724abfa8a01fc8db680b5d6915552b
font_01_sfnt_off00008483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8483 18556 bytes
SHA-256: 0c6b1e6d5af6e71a5f717763afec74d9fa5a47fcdd63102494205ccdca690211

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