Malicious PDF — malware analysis report

Static analysis result for SHA-256 53d4c70a2b926b9d…

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 19:30:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fbd6fdc1e27166a1a4bd3e8a30dda8b4 SHA-1: 9aa6aad55321f7bbb443354b4070a7bfc1f0a7a4 SHA-256: 53d4c70a2b926b9df7686653fb847f8e6a872b42660d8b9374d1ee1b159656dd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, disguised as a 'game hack' or 'free generator' lure. This link, http://netcdn.tw/app/431946152/roblox-free-bundles-game-hack, is designed to lead users to potentially harmful content. The document's structure and embedded URLs strongly suggest a phishing or scam attempt to redirect users to malicious sites.

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/roblox-free-bundles-game-hack In PDF document text
    • https://www.sonestad.se/library/repository/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-free-app_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-services_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/rewards-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-download_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-launcher-free_GM479516143.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_off00002f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F99 21684 bytes
SHA-256: 492b5b062c6d9012ceab45722d8e7ec85b2fabb4715ac68bc68698e5e7cd72a5
font_01_sfnt_off00005ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED8 18964 bytes
SHA-256: c92e42bb26df758d0ede5fbc703833b645d0b878db7a54c24e51c73b8a7d06d3

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