Malicious PDF — malware analysis report

Static analysis result for SHA-256 11aecb20b577e18e…

MALICIOUS

PDF

43.4 KB Created: 2021-05-13 04:31:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6b274f269b1cf7a219aa2dc2bf511470 SHA-1: ddc5a77349d4694179f31e9a41461ab022484b3d SHA-256: 11aecb20b577e18e540b534a01fdf2f2a7573e2c8ab4131905cb07bab178faf0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector, that are disguised as 'game hacks' or 'generators'. The heuristic firings indicate these links are intended to lure users to potentially malicious infrastructure. While no scripts were directly extracted, the nature of the links suggests a phishing or social engineering attempt to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-verification-game-hack In PDF document text
    • https://tena-g.hr/files/wurst-112_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/minecraft-the-complete-handbook-collection_GM479516143.pdfIn PDF document text
    • https://www.tena-g.hr/files/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/robux-premium_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/master-free-spin_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/hack-coin-master-without-human-verification_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_off0000493b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x493B 27432 bytes
SHA-256: 4c1d34e92025177fa3ffe2a421761fa3e252daedf9bfc9bdd10c7a5ea114a557
font_01_sfnt_off00008723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8723 18372 bytes
SHA-256: 8e16c624761c7815a00ee9013e3827e71f8aa93179f7b81ef6a1eeeaa97f0eaa

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