Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c1aa77223297a6…

MALICIOUS

PDF

35.9 KB Created: 2021-07-04 09:58:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 52170560e81f8996d4c22af15a170a00 SHA-1: 8e1fcb2a1598b22a94e6fa9a50a34088b7e2acd3 SHA-256: e6c1aa77223297a65a95857869beaf083cb98072db3fc86222608a21a2ca983c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded links that lead to known malicious redirectors and other PDF files, likely designed to lure users into downloading malware or engaging in scams. The content and heuristics strongly suggest a phishing or scamming attempt, masquerading as a 'game hack' or 'free generator' lure.

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/479516143/minecraft-hack-client-18-9-game-hack In PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/how-to-hack-accounts-on-roblox-easy-method_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/free-robux-windows_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/how-to-hack-robux-from-roblox_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/free-robux-and-builder-club-claims_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/hack-someone-on-roblox-and-steal-their-robux_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/roblox-character-edit-hack_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/hack-to-find-youtubers-roblox_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/coin-master-villages_GM406889139.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/how-get-bc-in-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://inforplace.com.br/ckfinder/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000035c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35C4 23036 bytes
SHA-256: 287305138be79b86a67b9d0f5c1f25d5e1b1d717e3b1d0acbdf2f6acef1bbe9a
font_01_sfnt_off00006911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6911 18580 bytes
SHA-256: 0f0b7e9792ce03a46f62115315cf89ce6201b0b871525563214e7880f5cc0e45

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