Malicious PDF — malware analysis report

Static analysis result for SHA-256 89052155f1fd1275…

MALICIOUS

PDF

41.7 KB Created: 2021-05-17 07:30:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0cc7ed9e7b17def6ab3ba4aaea0395e9 SHA-1: 794b38c30ed6465e831d62859b14913128dd3c0d SHA-256: 89052155f1fd1275a0e971dca2467c69bf8c11c3978a21c7f3b332d2927805e4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that lead to known malicious redirectors, disguised as generators for popular games like Coin Master and Roblox. The document body and heuristics indicate a lure for free game currency or hacks, aiming to redirect users to potentially malicious sites. No scripts were extracted, but the presence of multiple malicious links strongly suggests a phishing or scam attempt.

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/hack-mod-coin-master-game-hack In PDF document text
    • http://deyuan-pc.com.tw/images/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/114-hacks_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-hacks-for-spins_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
stream_003_off00004729.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4729 25636 bytes
SHA-256: 97f4301f4b9307105218beaf739ce9b0c545503641d9fca3f82eeb9ef5700a35
font_01_sfnt_off00008180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8180 17888 bytes
SHA-256: dc32a61c9c56a2d6254cf5e96f3d19af1ec49db8cb541dbe33886e0eb1c1ed15

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