Malicious PDF — malware analysis report

Static analysis result for SHA-256 367225b8bc1a829a…

MALICIOUS

PDF

42.6 KB Created: 2021-05-11 20:40:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f58efe73664d1a2b04d39c772a8400e9 SHA-1: 2e62934f2be7c1153bb46ba0e218665f82576a49 SHA-256: 367225b8bc1a829a4e9b1b2bbc53944d4babbc9dd5fc560b2ed4329be7ecd915
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary link, https://netcdn.xyz/app/406889139/coin-master-card-hack-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristics suggest an attempt to trick users into visiting these malicious sites, likely as a lure for further exploitation or phishing.

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/coin-master-card-hack-game-hack In PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/buxblast-com-robux_GM431946152.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-computer_GM479516143.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_003_off00004a88.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A88 25928 bytes
SHA-256: 2b43347c9fedf319fee5cacc5cd35385c6baf681b75e7252e3c5b41866a43519
font_01_sfnt_off0000852a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x852A 17888 bytes
SHA-256: 5efdab5adc2480a04776318c37b62879fa5095bdd48049ba40adaf7a695a074d

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