Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0bd2bd8167ec4ec…

MALICIOUS

PDF

33.8 KB Created: 2021-06-17 16:34:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64b5a80d7c35cf6dbc3402f8bd31e570 SHA-1: f577809e044b000a802305db6b4a8b36543dd9e5 SHA-256: b0bd2bd8167ec4ec96abc70bf66c21ec9deca4c1758339702965190d2caa53ba
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains links that redirect to known malicious infrastructure, masquerading as a game hack generator. The ML classifier strongly indicated maliciousness, and the document body reinforces the lure by mentioning game hacks and providing a direct URL. The embedded URLs are likely part of a phishing or malware distribution chain.

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.co/app/431946152/how-to-cheat-in-booga-booga-roblox-game-hack In PDF document text
    • http://library.acehresearch.org/repository/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/adidas-free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-robux-2021-january_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/pokemon-go-hack-free-coins_GM1094591345.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-cards-for-free_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-unlimited-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/multiple-roblox-games-hack_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-hack-programmers_GM406889139.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_off00002f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9A 21912 bytes
SHA-256: 2b44ddd85ccee1cfeecba4ba3d3610be2c7a71a6d0a5ec5bc5b5dac716f0404a
font_01_sfnt_off00005ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF7 18732 bytes
SHA-256: 56bf52766000d02dfd25608f1759b0943a3cea54715cf12b19427d7e754ad849

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