Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0015f4255f6cfe2…

MALICIOUS

PDF

31.2 KB Created: 2021-07-19 00:29:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7aab89a7b8dae3ede36e53625793d54d SHA-1: 09160159c9b1678750bc82e1186907120d7bafa2 SHA-256: d0015f4255f6cfe20f4941e29dc1324c05a23434513340a729872c20340db653
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux' and includes multiple URLs pointing to domains that appear to host similar scam content. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URIs suggests an attempt to redirect the user to a malicious site. No scripts were extracted, but the overall pattern indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9426

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/how-to-get-free-robux-on-roblox-game-hack In PDF document text
    • https://magistrinfo.ru/images/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://magistrinfo.ru/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000023a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23A7 22988 bytes
SHA-256: 9539505ed0856d6b81ef59f3ca7646ebfcb2e1d6eddf66e864655c6e0b278822
font_01_sfnt_off00005764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5764 18540 bytes
SHA-256: 2557c2e11304e283ec684ce61175de816869402e582bd3c82ce838557335e232

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