Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca26ee24f8422245…

MALICIOUS

PDF

35.5 KB Created: 2021-05-20 07:40:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9a3cecbee4ab9bf2592b2b7da0cfcf2c SHA-1: d5f14e9d380cfb59d7f037d520b3d26fd3b0a38f SHA-256: ca26ee24f84222459f340d48cdf06e9856e9142bd50ead97be4473842ec0c28e
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing for a redirector link that lures users to a 'free generator / game hack' website. This link, 'https://netcdn.xyz/app/431946152/roblox-free-robux-game-hack', is known to be associated with malicious infrastructure. The document body also contains similar URLs, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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/roblox-free-robux-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
stream_002_off00002df4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2DF4 26488 bytes
SHA-256: b98b1c38aa609bfd7f11d9d17e25afb3c30badfdc59c30a10547651a3f53f0ec
font_01_sfnt_off00006a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A8D 18088 bytes
SHA-256: 03c92d59c548fbfdae08874221752d30f8caaed88781636bf7d18542e7c5fe52