Malicious PDF — malware analysis report

Static analysis result for SHA-256 358b7f0a29637959…

MALICIOUS

PDF

31.3 KB Created: 2021-07-06 11:41:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2588e65fed7310a0be0ce30629d61873 SHA-1: fb6a9b7580293c0b5c60bf1b98a79b4d62502616 SHA-256: 358b7f0a296379595ad18b5d9dee1cfd2730b942e4b540b040d55bff49d62de3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including a primary link to http://netcdn.tw/app/406889139/coin-master-free-shield-game-hack, which is identified as a malicious redirector. The document body and heuristics indicate a lure for game hacks, likely intended to lead users to a malicious site or download. No scripts were extracted, but the embedded URLs and the nature of the lure strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9774

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/coin-master-free-shield-game-hack In PDF document text
    • http://library.acehresearch.org/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-money-cheat-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-robux-on-roblox-app_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-800-robux_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-roblox-faces-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://library.acehresearch.org/repository/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-robux-on-roblox-october-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-bc-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-hack-ios_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_off00002982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2982 21076 bytes
SHA-256: 790a6dd204303f81aeca1b43d210cccb64436b6eeb5e67567fd8ae3c4d3aeba5
font_01_sfnt_off00005753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5753 18412 bytes
SHA-256: 0587c5ea293d6466c2874a15d5d2b3fb54518ca93cb1aa8e833a12ae5a1a4040

Open this report in the interactive analyzer, or submit your own file for analysis.