Malicious PDF — malware analysis report

Static analysis result for SHA-256 f392009a87719d44…

MALICIOUS

PDF

34.1 KB Created: 2021-07-19 04:37:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 890f2361fed4a04146171ce00e0465f3 SHA-1: d274f7f7c42c4715df1341633ddda7752296a024 SHA-256: f392009a87719d440ebf4ea20f387e6e85006089c2e1628b926b7634b3c16346
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically a lure for "free Minecraft" or "game hacks". The document body and heuristics indicate a social engineering attempt to trick users into visiting these malicious URLs. While no scripts were explicitly extracted, the nature of PDF redirects often involves JavaScript execution to facilitate the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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/479516143/how-to-get-minecraft-for-free-on-ps4-game-hack In PDF document text
    • https://force-seniorklub.dk/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://force-seniorklub.dk/images/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://force-seniorklub.dk/images/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://force-seniorklub.dk/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://force-seniorklub.dk/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://force-seniorklub.dk/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://force-seniorklub.dk/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://force-seniorklub.dk/images/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://force-seniorklub.dk/images/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • https://force-seniorklub.dk/images/coin-master-links-free-spins_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_off000030e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E8 22904 bytes
SHA-256: b7186a1b386d97a141bf88a3da262c87d8c9edf7a86849f4b3bec6c5fe3de4be
font_01_sfnt_off0000640d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640D 18088 bytes
SHA-256: 3c584cfdb2e84eddbd4369948c7cb3512903decb89ab4dae7c156f2377516814