Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9ff6e41724e6ce3…

MALICIOUS

PDF

40.6 KB Created: 2021-05-16 20:31:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e97094ebfccd3c16dd530ff65ba460ce SHA-1: 7c65f3eb47cd1950b0f9677679e25e84dd1c1ed3 SHA-256: b9ff6e41724e6ce3787823b916cc8bee582ffd90e07869755275ce0124206622
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The ML classifier also flagged this PDF with high confidence. The embedded URLs suggest a phishing or scam attempt to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/today-free-spin-coin-master-game-hack In PDF document text
    • https://lita-lb.org/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • https://lita-lb.org/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/offers-for-robux_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-unlimited-spin-hack_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/coin-master-free-attack_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • https://lita-lb.org/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://lita-lb.org/images/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://lita-lb.org/images/free-robux-codes-2021_GM431946152.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
stream_003_off000045b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45B5 23860 bytes
SHA-256: 5ca6e83cd044ee83c33ed521c6b3770d3177da0189e0c7c569b029bc2a45fe08
font_01_sfnt_off00007c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C03 18240 bytes
SHA-256: 1b392e4e99e418e4b3aafc08017bc674641ef7dd4d3aea32a3af237a513dd73c

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