Malicious PDF — malware analysis report

Static analysis result for SHA-256 445e7474510fbd37…

MALICIOUS

PDF

48.7 KB Created: 2021-06-09 07:45:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 1daa007b2bc102dc1a665080c806110c SHA-1: fe77cdfcebca07336acc6c2c504eecb0d899e299 SHA-256: 445e7474510fbd37e42735aab5e1528fffdd0b442b9f27cb5dd98673845881ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to a known malicious redirector. The embedded URL, https://netcdn.tw/app/431946152/how-do-u-speed-hack-in-mm2-roblox-game-hack, is part of a chain designed to lead victims to potentially harmful content. While no scripts were directly extracted, the PDF structure and heuristics indicate a malicious redirection workflow.

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/how-do-u-speed-hack-in-mm2-roblox-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/free-gamepass-script-roblox-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-code-a-script-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-avtar-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-spins-on-coin-master-hack_GM406889139.pdfIn 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
stream_004_off00005120.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5120 25712 bytes
SHA-256: 1e04e8cfec95dd3c98aa4d0b72808f139bbe0b8f513594eb27925803a043c348
font_01_sfnt_off00008c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3C 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00009765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9765 19632 bytes
SHA-256: e69b6effd3e38fb8a52538dfdec8b29f52ec3cf85fa15df3f157417723f439ff

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