Malicious PDF — malware analysis report

Static analysis result for SHA-256 e73df8bbeaaff89d…

MALICIOUS

PDF

32.1 KB Created: 2021-07-21 01:32:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c4585c505eb13c94e01ef798991c4ab2 SHA-1: dd1b514db33e483e44890b54c4188b5b5f766108 SHA-256: e73df8bbeaaff89d3b1d1617dce4fad103a10f46c699a4c0811453107a061ed2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains embedded URLs and a call-to-action lure, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. The primary URL, http://netcdn.tw/app/431946152/make-free-robux-game-hack, likely hosts a malicious payload or redirects to a scam page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/431946152/make-free-robux-game-hack In PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://www.expertravel.com.gh/wp-content/uploads/fsqm-files/minecraft-hacks-115-2_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_off00002944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2944 22000 bytes
SHA-256: f4e12bc4ba0335ab08f3316315d006c8c9781524c5ef78424a6aabda29fba03a
font_01_sfnt_off000059a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A9 18792 bytes
SHA-256: 5e993ba9ca060b95956d6af3fce59918bffd791a350489dcf4615c78742f70ae

Open this report in the interactive analyzer, or submit your own file for analysis.