Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d96ce723b12969e…

MALICIOUS

PDF

33.6 KB Created: 2021-07-04 08:20:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7cb664df541714d8e5a90fb582bc73fa SHA-1: 259ba1626c596d6965a0d27ba24f6c01a12897d8 SHA-256: 6d96ce723b12969ec6dd639a4e67f2e8550abe66f70089135b59d8c0c10bc7b0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirector infrastructure, specifically designed to lure users with promises of free game items and hacks. The primary redirector URL identified is http://netcdn.tw/app/431946152/boombox-backpack-free-roblox-game-hack. While no scripts were extracted, the document's structure and embedded URLs strongly indicate a phishing or scam attempt, likely serving as a lure for further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/boombox-backpack-free-roblox-game-hack In PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/ex-7-roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/roblox-com-free-for-mobile_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-spin-coin-master-link-download_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-by-pressing-one-button_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-roblox-usernames-and-passwords-with-robux_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/minecraft_GM479516143.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/roblox-account-taker_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/roblox-hack-me-robux_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
font_00_sfnt_off00002cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAD 22180 bytes
SHA-256: 400e8ece07f26b40d8bad7c770f40deb7954682adc4ce8961e07ad1ed0319d88
font_01_sfnt_off00005e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E13 19256 bytes
SHA-256: daee6ad0440143ce3579204c6d37ec42b06916f32358d7f4071863bcc4ab0066

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