Malicious PDF — malware analysis report

Static analysis result for SHA-256 6861cfac62cd54f7…

MALICIOUS

PDF

43.0 KB Created: 2021-05-18 05:02:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9255c3d79fec41eef64b3966479fd41b SHA-1: a655ac816f0f7b8a08335aa396206006fd5a3702 SHA-256: 6861cfac62cd54f7f7c1dfc3223fe1d7f0ac7056198d1c16d8e62703110570bd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector, disguised as "free generator / game hack" lures. The document body and embedded links suggest a phishing attempt to trick users into visiting these sites, likely to download further malware or engage in scams. While no scripts were directly extracted, the PDF structure and heuristic firings strongly indicate malicious redirection and social engineering.

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/431946152/how-to-get-free-robux-2021-easy-game-hack In PDF document text
    • http://cacpglobal.ca/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://cacpglobal.ca/images/corn-master_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-daily-gift-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://cacpglobal.ca/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://cacpglobal.ca/images/how-to-make-a-private-server-on-roblox-for-free_GM431946152.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_off00004950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4950 26132 bytes
SHA-256: fbcd575943f642339d6d39709fb47da4e688a5d8a4fe804eafe8c6789443d7bc
font_01_sfnt_off000082dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82DC 19092 bytes
SHA-256: cc4041fc50bd2ea9a1268967e32916156e3a634973a216864dd7f220ceb04504

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