Malicious PDF — malware analysis report

Static analysis result for SHA-256 806d7753f64a5752…

MALICIOUS

PDF

33.9 KB Created: 2021-07-09 22:12:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d81a1e9f97d612def5fbe4b42d3b9acc SHA-1: 18a7da075815528876d146c6e83a8a35f93e67a5 SHA-256: 806d7753f64a57527614766bfe042fc8b22bc2e001c304c54d6eac1a150a19ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The presence of a visual download button and the overall structure suggest a phishing or scam attempt designed to trick users into visiting malicious sites. While no scripts were explicitly extracted, the PDF's nature and the critical heuristic firings strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/406889139/freespinandcoin-game-hack In PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/freerobuxno-games-no-sighning-up_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/free-roblox-noob-accounts_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/mcpe-116_GM479516143.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/roblox-red-free-pants_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/free-face-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/free-robux-generator-no-human-verification-100_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/vermillion-robux-hack_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://metropolemoveis.com.br/ckfinder/userfiles/files/how-to-get-free-robux-easy-hack-2021_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_off00002fdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDD 22476 bytes
SHA-256: a6f20927028d6f130b530a7835deb1283520d00e105b38158e130c3157430b11
font_01_sfnt_off0000620f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620F 18244 bytes
SHA-256: 19494bed36003fadbe02431e250c62ef1698fa422030438aed600d934fd3a9e1

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