Malicious PDF — malware analysis report

Static analysis result for SHA-256 15d0b099005d51de…

MALICIOUS

PDF

35.5 KB Created: 2021-05-14 11:07:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 368339228c3ddebf051e02efe8354405 SHA-1: e517088aa837ec235a1288041b2b677a6f480255 SHA-256: 15d0b099005d51dec7e43c5fa30f1c78d3bcbd6bfc131649a87b87b99bcc226c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to a lure for 'free Roblox intros' and 'game hacks'. This link, https://netcdn.xyz/app/431946152/free-roblox-intros-game-hack, is identified as malicious infrastructure. The document body also contains similar text, reinforcing the lure. While no scripts were explicitly extracted, the nature of the PDF and the redirector link suggest an attempt to lead the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier clean score 0.0306

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-roblox-intros-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_003_off0000318e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x318E 24520 bytes
SHA-256: e860d8782142c957e312d5d5d4c7c0b477803842cfaffa29b14b122c65361b5e
font_01_sfnt_off000069f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F3 18052 bytes
SHA-256: 96373f35ee075c3be11c8e4c64eb77f13cb7d9769cc235bfbcc2c5e9d23a424f

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