Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b5a960da293b2f2…

MALICIOUS

PDF

36.3 KB Created: 2021-05-20 19:58:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 528bc53ef8e819f1bf5a374b3e5793eb SHA-1: 8fc058f6ddfc8d9c656b6b78085f5cecc9a87e47 SHA-256: 8b5a960da293b2f2ad7a6fadb79b6c9b75b66ae7ad4d69db67d7c5473705ca30
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded links and a call-to-action button, masquerading as a "Minecraft Account Hacked" generator. These links redirect to known malicious infrastructure, specifically designed to lure users into downloading further malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/479516143/minecraft-account-hacked-game-hack In PDF document text
    • http://huounaixunghe.com/images/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://huounaixunghe.com/images/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://huounaixunghe.com/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://huounaixunghe.com/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://huounaixunghe.com/images/mobihack-net-roblox-hack_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_off00003521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3521 24796 bytes
SHA-256: b3f61ec9b4755fbb9c60762810082d6ae328f56a23e0e04f34117ad50e7c2462
font_01_sfnt_off00006cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CCE 18192 bytes
SHA-256: 008244ed49e44a6e3f1c26538d212edbe60ea445ab612c7727f56c46dc3d0edb

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