Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa0eedbff9b9f9f…

MALICIOUS

PDF

35.9 KB Created: 2021-05-17 14:31:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 08ddcfbb3df8a8941ecbd7a05812a68a SHA-1: a21d7f510fc9f510d43c55c0e23d2138674b1af1 SHA-256: cfa0eedbff9b9f9ff3f62a247917cbe55fa75ab93a6af03ee80c2baebe1f47b5
158 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a prominent lure for a 'Roblox Hack Download' and a call-to-action button, directing users to a malicious URL. This URL is flagged as a known malicious redirector, indicating an attempt to deliver a malicious payload or lead the user to a scam. The document body, though partially corrupted, reinforces the lure with similar text and the malicious URL.

Machine Learning

  • Nyx PDF Classifier clean score 0.0265

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/roblox-hack-download-game-hack In 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_off000032e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E4 24340 bytes
SHA-256: e07da7700738f64654cd2243808956ebd4ebf343bd2025e954751f1f99a46838
font_01_sfnt_off0000696e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x696E 18688 bytes
SHA-256: 777ecd9bf4cba19c66ac3b03e370a33bd01ed4cf882c145341853d771ac6f80e

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