Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e21bd2f5b41acbe…

MALICIOUS

PDF

37.0 KB Created: 2021-05-23 19:47:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 38db3aaf243582c90cda0770ad3caae4 SHA-1: 3956aba5dcef86e42448e6aded8edf3afba7ad71 SHA-256: 0e21bd2f5b41acbe9aabc72946b2637e7f2ea1e4072fd5d044e7fda164def9d2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as lures for game hacks and free currency. The heuristic firings indicate the document is designed to redirect users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure itself contains embedded URLs and potentially executable content that facilitates redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/can-you-play-minecraft-for-free-game-hack In PDF document text
    • https://tokunfome.com.br/images/free-robux-master_GM431946152.pdfIn PDF document text
    • https://tokunfome.com.br/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://tokunfome.com.br/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://tokunfome.com.br/images/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://tokunfome.com.br/images/how-to-get-free-robux-without-downloading-anything_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_off0000358c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x358C 25728 bytes
SHA-256: 9ba3977c0718e9b3d7f8ffb6c5e0674edbc1916bffb34bb15a8aa8076502adcf
font_01_sfnt_off00006f1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1C 18420 bytes
SHA-256: 81bede04d90c080fa29d20db124f1531358f39ee91ce610139dedd08dc3401fc

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