Malicious PDF — malware analysis report

Static analysis result for SHA-256 7188226c1b3ada93…

MALICIOUS

PDF

41.7 KB Created: 2021-05-12 22:39:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8e32ab2f98af75fd1a63bd0cc3c52128 SHA-1: 6a3c57a66c76c988310b530bc909d1de93d8ee50 SHA-256: 7188226c1b3ada934915b6ef7c924ff3a9d2fd0c36eb75f38d249d3e8a59ad4e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting a 'game hack generator'. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous redirector links indicates a clear intent to lure users to potentially harmful websites. No scripts were extracted, but the document's structure and embedded URLs suggest a social engineering attack.

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/haktuts-coin-master-game-hack In PDF document text
    • http://lib.mbp.ac.id/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-pe_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-game_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/roblox-gang_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/robux-generators-that-actually-work_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
stream_003_off000047f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47F8 25392 bytes
SHA-256: 74cce54a10d847552767a8910de513a1a74165ec6bfdcf06abc0e0913995a619
font_01_sfnt_off000081e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E2 17856 bytes
SHA-256: 9a171871d988bc1988049c09ad080bd94eb2a57075f1d5bf745cfaf45cf1e0be

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