Malicious PDF — malware analysis report

Static analysis result for SHA-256 03fa7368a478bb2a…

MALICIOUS

PDF

33.5 KB Created: 2021-07-20 14:20:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: db73ce8874c1b690aba22333a846b3b1 SHA-1: 5898acadf5867da5e01420ddf632216438fad3c2 SHA-256: 03fa7368a478bb2a3fd87d9c927d69dcf058d95697eff968dc0dedaa402cfe89
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, masquerading as game-related content like 'Minecraft Free Computer Game' and 'free robux'. The heuristic firings confirm the presence of malicious redirector links and a lure for game hacks. While no scripts were explicitly extracted, the nature of the embedded links suggests a phishing or scam attempt to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/minecraft-free-computer-game-game-hack In PDF document text
    • http://somvisio.es/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://somvisio.es/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://somvisio.es/images/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://somvisio.es/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.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_off00002f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F09 22472 bytes
SHA-256: 72646c3422d2a5f6aed3da09e712792b2057ad3e315be1a5e051b9afab8117b0
font_01_sfnt_off0000610d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610D 18284 bytes
SHA-256: 652d84a18e1638f498f678590eda8b7b1302fb3a862e9e0847db70e42b725810

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