Malicious PDF — malware analysis report

Static analysis result for SHA-256 425173e1166e1128…

MALICIOUS

PDF

43.8 KB Created: 2021-06-08 23:27:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 5c901e6ceeab46047f8e607433b4d8be SHA-1: ecbb2233c519043f7a6437dd195c3fc7c331f5d4 SHA-256: 425173e1166e11282fb35e2110e07f54f190847f4dc5103871c07881bcbc3739
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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-to-hack-in-attrition-roblox-game-hack In PDF document text
    • http://sttlets.education/senayan/repository/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/claim-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-cheat-engine-full-health_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-get-free-robux-easy-hack_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_off00004daa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DAA 25904 bytes
SHA-256: f0d7f51f20cfeca33f84e4c3440845bd9a7209e1eb5abc400554760051449a19
font_01_sfnt_off0000878a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x878A 18568 bytes
SHA-256: c42e10eaebd1b8cc560958a71dcaccc1e9076a411d84a96495bfb8949152d2a8

Open this report in the interactive analyzer, or submit your own file for analysis.