Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d271f854f75c475…

MALICIOUS

PDF

41.8 KB Created: 2021-05-19 23:34:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f151dc1a2efcf1d52352d14d0f1f0a64 SHA-1: a0e7f9f956df1c7ba250aec769ba16edaf090b1d SHA-256: 0d271f854f75c475c2613b9d0b39d3eaa2b700af474b91a53e8dc642221ddb8e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'free generator / game hack' lures. The document body, though heavily obfuscated, contains references to these lures and the primary malicious URL. The presence of embedded URLs and the ML classifier strongly indicate malicious intent, likely to redirect users to phishing or malware download sites.

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/406889139/coin-and-spin-link-game-hack In PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn 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_off00004c0e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C0E 24016 bytes
SHA-256: 6ebc2e68b1cbd1e3d08f51b29eb51207d7472faaef82cd1b671b43e8e00286dd
font_01_sfnt_off000082bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82BD 17736 bytes
SHA-256: 9fd78c46a16481f8ba83db086433be65d4d5874e7db978b85e0d8aad6b4172bd

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