Malicious PDF — malware analysis report

Static analysis result for SHA-256 92995f811092652f…

MALICIOUS

PDF

45.7 KB Created: 2021-06-11 12:59:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 906a4d2295efb21add401586c90a6b5a SHA-1: 16c213b806e9886178874e672df6027f2dac7023 SHA-256: 92995f811092652f8dfd63a2a1fcb70d6ac6b7d52403dcbdce026c729f9d371b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure and sites offering game hacks and free currency, indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. The embedded URLs are designed to trick users into downloading further malicious content or visiting scam websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/buy-robux-for-free-2021-game-hack In PDF document text
    • http://jjpremiers.com/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://jjpremiers.com/files/robux-get-com_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/como-hackear-roblox-apk-mediafire_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • http://jjpremiers.com/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://jjpremiers.com/files/tiktok-free-likes-and-views_GM835599320.pdfIn PDF document text
    • https://www.jjpremiers.com/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/rbxfree-com-free-robux_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_004_off00005113.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5113 27184 bytes
SHA-256: a84bfff54c2b447f3493d1f750c05b21bfd8f34c208bafc1ae2c35cfe3abb5f1
font_01_sfnt_off00008f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3E 18596 bytes
SHA-256: ff42703a16f90fa4d531b36b3fa3e700d915267cd1058053f450f45d5f578e10

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