Malicious PDF — malware analysis report

Static analysis result for SHA-256 45712a6b5af4086d…

MALICIOUS

PDF

37.8 KB Created: 2021-05-18 00:03:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2edb170c274eb262875c0b464fea56b9 SHA-1: d757254c4511c6a1e06991f4e0c4e5abf89aa5b4 SHA-256: 45712a6b5af4086d6a67283414a1791dc903eadb15361e8e9cb39bd4584dae36
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains heuristics indicating it's a lure for game hacks and redirects to known malicious infrastructure. The document body, though partially garbled, contains text related to 'Robuxy Com Generator' and a URL that aligns with the malicious redirector finding. The presence of embedded URLs and the nature of the lure suggest an attempt to trick the user into visiting a malicious site, likely to download further malware or engage in credential harvesting.

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/robuxy-com-generator-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_off0000332e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x332E 26788 bytes
SHA-256: 7f1ed0e28c4237f5bb3596c63662f2e06c91e7d676f13bb4e2d1ff7e46672e2a
font_01_sfnt_off0000715d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x715D 18624 bytes
SHA-256: 564b676c83dfcfb2d17032d30a69b1d7bc1cf309ea05e1634c9d6195baca18fb

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