Malicious PDF — malware analysis report

Static analysis result for SHA-256 92a9c4402c1ff0b5…

MALICIOUS

PDF

38.1 KB Created: 2021-05-18 00:31:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2c10bf9fc4fb55eeb547fb0720f826bf SHA-1: 80d121694e01afbe5fd45ac1bf77757d06729d9e SHA-256: 92a9c4402c1ff0b594433e620208e05aaba17430b7a3f033f4cb824fe9be06fe
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that are identified as malicious redirectors, specifically leading to a 'free Robux generator' lure. The document body text and heuristic firings confirm the presence of a call-to-action button and a lure related to game hacks. The primary IOC is the malicious URL used for redirection.

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/www-free-robux-com-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000350f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x350F 27052 bytes
SHA-256: 48753a4c523f92b340ed62a3ea31d7bb265ba07bc117c1b86231ef8b756fbeac
font_01_sfnt_off000072b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B2 18636 bytes
SHA-256: 9f7262e815bd0044d2d3715e2ef4b4760a787eb7fc9de28673ce11fb32ae2f7d

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