Malicious PDF — malware analysis report

Static analysis result for SHA-256 200c2cc65df0524d…

MALICIOUS

PDF

46.1 KB Created: 2021-06-10 14:50:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f791adba9ce2f7f2b1d39bf86dd79dce SHA-1: f26097e25b04589e325aa639a807d9abccb91d3b SHA-256: 200c2cc65df0524d79a3f68478eefef2b23c34ca6be31caddee07854240d51aa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting 'free game hacks' and similar lures. The document body and heuristics indicate a phishing attempt designed to trick users into visiting these malicious URLs. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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.tw/app/431946152/15-robux-free-game-hack In PDF document text
    • https://foc.vn/public/upload/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://foc.vn/public/upload/files/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://foc.vn/public/upload/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/free-nike-shirts-roblox_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
    • https://foc.vn/public/upload/files/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://foc.vn/public/upload/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://foc.vn/public/upload/files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://foc.vn/public/upload/files/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • https://foc.vn/public/upload/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://foc.vn/public/upload/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://foc.vn/public/upload/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://foc.vn/public/upload/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://foc.vn/public/upload/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F49 24688 bytes
SHA-256: bca3a260d6bf34936c5a4821523ec837423b135af43586eef4b9fb98d722a5e1
font_01_sfnt_off00008763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8763 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off0000914d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x914D 18252 bytes
SHA-256: 729350472192be39748f74692bf355f3fa32416a9a11577ac597e7283ad732f6

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