Malicious PDF — malware analysis report

Static analysis result for SHA-256 297ee3695f7faca8…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 23:28:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 797f5f6c95827d8f6e8cdf3b2c9dd7ab SHA-1: 9571064ffee15a57bbc100359e5709dcec395578 SHA-256: 297ee3695f7faca8986b41240ffeac426628444ed181079f9c093e27176c097f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, including one at http://netcdn.tw/app/431946152/get-free-robux-ad-game-hack, which is likely a lure for downloading malware. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs and a call-to-action button further supports a malicious intent to trick users into downloading unwanted software. No scripts were extracted, but the overall structure and content point to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/get-free-robux-ad-game-hack In PDF document text
    • http://www.sbairs.com/datas/files/catalog-roblox-free-hair_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/online-games-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/descargar-roblox-hackeado-para-android_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/can-pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/roblox-assassin-cheat-codes_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/money-cheats-for-rocitizens-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/roblox-ban-proof-hack_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/roblox-case-clicker-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/can-you-download-roblox-on-ps4-for-free_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/free-roblox-codes-october-2021_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://www.sbairs.com/datas/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECD 23024 bytes
SHA-256: a46e7f50866630ca2862ae88f52cb3b903c238160a2667972cb08d1d5a95938b
font_01_sfnt_off0000629a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629A 18996 bytes
SHA-256: 25d497c83149cfdb8a6007cd00030e451ba8786c21d39bf3d685d40bd429ee4c

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