Malicious PDF — malware analysis report

Static analysis result for SHA-256 d23d7cd5e72da68e…

MALICIOUS

PDF

43.5 KB Created: 2021-05-16 16:03:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e695fb7c768d19a0dbcc325f8f5e2adb SHA-1: cecd8cba31cd1c22747407aa6ea28cc1d5b8cf34 SHA-256: d23d7cd5e72da68e02122a4e782abd17747273e290194aa96faf50748c0725f9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as offers for free game currency or hacks. The primary lure URL is https://netcdn.xyz/app/431946152/free-robux-codes-2021-not-used-game-hack. The document body and embedded URLs suggest a phishing or scam attempt, likely leading to further malware downloads or credential harvesting.

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/free-robux-codes-2021-not-used-game-hack In PDF document text
    • https://lita-lb.org/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-free-coins-and-spins-link-today_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/www-coin-master_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/how-to-get-free-roblox-gift-cards_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
font_00_sfnt_off00004915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4915 27140 bytes
SHA-256: f53f03d006f184e2f9d98865ceff35dd22aa83045a4ecce95ab34cbf4b7f5149
font_01_sfnt_off00008597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8597 18880 bytes
SHA-256: 342a41804753b243bf13fa7c19db71c7debbb8fa80f4750c82899b0ccf7aa343

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