Malicious PDF — malware analysis report

Static analysis result for SHA-256 07e44a17237ce3eb…

MALICIOUS

PDF

48.0 KB Created: 2021-06-10 20:44:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4e356ffaf83c172a6d5128ea290ba819 SHA-1: 2ac21f43a8183679e386e931e648b7f63cee5730 SHA-256: 07e44a17237ce3eb601a31d3debf74926390b59df703638d6fcf54eb2114a64e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting free game hacks and currency generators. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves luring users to click these links, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/robux-redeem-card-free-game-hack In PDF document text
    • https://www.stayon.no/images/how-to-get-free-robux-2021-website_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/2021-roblox_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://www.stayon.no/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/game-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://www.stayon.no/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/free-cool-stuff-roblox_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-hack-app-2021-download_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/robux-hack-v6-5-mythical-chaos_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/oof-hack-off-roblox-id_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://robuxhaxs.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50D1 27152 bytes
SHA-256: 69de164e9f3be150683403d700f23afa7b6e6072944ecc737e5883292d3f4536
font_01_sfnt_off00008dc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC5 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off000097d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97D5 18676 bytes
SHA-256: 4ac649fd51a39bdd7e85420788f61d9669407af3f26bd0944147e4e8cf37ba71

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