PDF static analysis report

Static analysis result for SHA-256 1afcaf67cad5e5db…

SUSPICIOUS

PDF

29.7 KB Created: 2021-07-20 05:43:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: bf4f4f30d623d15f7ed03a6195e73a0a SHA-1: 5334b14ff403e9a09eb2db839c7e6bf83096cc13 SHA-256: 1afcaf67cad5e5dbfe6de67a54a958e72e2bb83a33c3ad78c4e8307428706160
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a prominent link and text related to "free Robux generators", a common lure for online scams. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this, pointing to a suspicious URL. While no scripts were explicitly extracted, the nature of the lure suggests it's designed to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0573

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.tw/app/431946152/how-do-you-get-free-robux-on-roblox-game-hack PDF link annotation
    • 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
font_00_sfnt_off00001f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F2F 22236 bytes
SHA-256: d468015edd8ff55d9c6df70fe9b33d5c69b7e7f9a1c1ef4bb0cc9507de9a56b9
font_01_sfnt_off00005093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5093 18872 bytes
SHA-256: 24fd41772b4527d90362dac6de866a4ab7aa5c30c1e1928212e5c42b76e1fb73

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