Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecf2ed0fbfef3b06…

MALICIOUS

PDF

38.9 KB Created: 2021-05-12 05:43:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 91f3441f8abf3121f53fb62f88c4b37b SHA-1: d011ec37974d0ed817afb4bd8ca6062783f41266 SHA-256: ecf2ed0fbfef3b069ee8fd0b5ba31ffaf24220f544d799d6fb0210887cc6048f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple heuristics indicating a malicious redirector link, specifically targeting users interested in 'Robux Game Com' and game hacks. The embedded URL, https://netcdn.xyz/app/431946152/robux-game-com-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristics suggest an attempt to lure users to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/robux-game-com-game-hack In PDF document text
    • https://www.roblox.coIn 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_off0000320d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x320D 31272 bytes
SHA-256: 1a1d20ff975509687ebc2a51897de80eec0db79df6457a2f8b1261175d639449
font_01_sfnt_off0000769e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769E 18340 bytes
SHA-256: c3384937c05d12942e5ee2f32f048a43efe3336dc3e7ac7a8d2adf4ff389f548

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