Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e7b6a0fcaab5496…

MALICIOUS

PDF

42.0 KB Created: 2021-05-17 00:14:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b874c852b78ec4d2950c79585bda2f13 SHA-1: cd76de275dbecea5501805fba8f5030ff9f2add6 SHA-256: 5e7b6a0fcaab5496d4c1f4e8ed873db98a9eba634cceb0e3be6c322f213ee0a1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-mod-apk-game-hack. The document's structure and content suggest a lure to trick users into visiting these sites, likely for further malware delivery or phishing. No scripts were extracted, but the PDF's nature and embedded links strongly indicate a malicious intent.

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-mod-apk-game-hack In PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/free-coin-spin-daily-link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.sepl.net.au/uploaded_files/userfiles/files/how-to-host-a-minecraft-server-for-free_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_off000049b7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B7 25112 bytes
SHA-256: f06c52890c6c9c618b2ba7ef94bf8d64c5ce29f4f0eaede74c53648cb709a9d3
font_01_sfnt_off00008236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8236 18068 bytes
SHA-256: b41b00b03ce87291eba0dd85e91a6f7f7f395b53aa8529f4df5d3819e50e6afc

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