Malicious PDF — malware analysis report

Static analysis result for SHA-256 78950a5053acf899…

MALICIOUS

PDF

36.4 KB Created: 2021-05-20 07:46:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: db47003c281f3b8761932152e8c8c027 SHA-1: cdb14c0ef59806822e9318544c3eb9bd7bd9041f SHA-256: 78950a5053acf8996082c9f9f8be51e5123ce764b8c1484d836469bbecd5e969
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links pointing to known malicious redirector infrastructure, specifically designed to lure users with promises of free game hacks or generators. The document body and embedded metadata reinforce this lure by mentioning 'Free Robux' and 'game hack'. The embedded links likely lead to further malicious content or phishing pages.

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/free-robux-no-human-verification-or-survey-or-download-game-hack In PDF document text
    • https://rblx.landIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_002_off00002f4e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F4E 25092 bytes
SHA-256: 3c5217ce04c67bfcf8b805d952936402e3daf9412547e716d6cb80d5f87add66
font_01_sfnt_off000068fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68FE 19736 bytes
SHA-256: 59e4374f8172b973ba9217c83b5ce6b26483f5ae1ceeffd331798f57e1658bad

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