Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1299f7201c96af9…

MALICIOUS

PDF

35.5 KB Created: 2021-05-21 15:32:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 80de7fd71ed934a607142f9e5f951b50 SHA-1: 5284077c6483eb29c51ce8cc304be84df2b15255 SHA-256: f1299f7201c96af9aa526f07ca7b98eb7cffdbbfcaaf72589086a1743f109d1c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising free game hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-robux-com-real-game-hack. The document body and embedded artifacts suggest a lure for potentially unwanted or malicious content, likely leading to further compromise. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/431946152/free-robux-com-real-game-hack In PDF document text
    • http://dieter-sauter.com/images/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/hack-coin-master-apk_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_off00002fde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDE 25440 bytes
SHA-256: c9442695e1a51a8edaf86a10f441423c00c68740f4a7ac243459bdbac4b5b809
font_01_sfnt_off000068bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68BD 18576 bytes
SHA-256: a83edd52c2be056a67ce389c2e3103e44ea5f6bc4cdf4c28a35d8553f09f80ba

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