Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f6a560fef61face…

MALICIOUS

PDF

42.6 KB Created: 2021-05-15 17:07:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: faad7780a6e37c51f727711a41f1675c SHA-1: 1a1f21249eb88d4cf14a16c942cffcd2ae52a1b5 SHA-256: 2f6a560fef61faceba647c4b7d1dcfd7ebdb599d819e00c1b9070e1740fe6840
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and free in-game currency. The ML classifier strongly indicated maliciousness, and the presence of numerous embedded URLs pointing to known malicious redirectors confirms a phishing or scamming attempt. No scripts were extracted, but the document's structure and embedded links are designed 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/coinmasterfreespinlink-game-hack In PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/coin-master-free-coin-and-spin-app_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/minecraft-free-version_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotakediri.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master-hack_GM406889139.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_off00004a8d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A8D 25104 bytes
SHA-256: 81427df5b1c315989a2320ad3902e2906de5f172adc19cf33d0de24d704db865
font_01_sfnt_off000084a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84A4 18224 bytes
SHA-256: 5ac1ce2ac88e7b98134a23e8a83b406c8e40c127b2dbab09a4edbea00c7c47cb

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