PDF static analysis report

Static analysis result for SHA-256 5c18dbf26722c515…

SUSPICIOUS

PDF

30.7 KB Created: 2021-07-22 22:00:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6d7b1011bff2ed8ff58545746316fcd0 SHA-1: 558137e73f302d5caadcdf556e27914def0aa545 SHA-256: 5c18dbf26722c515ae1d72b07eb8f3d7371068acd431eabafb358879c2d7a514
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and a 'game hack', directing users to a suspicious URL. The heuristic PDF_GAME_HACK_REDIRECT_LURE confirms this intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a potentially malicious site for further exploitation, likely involving social engineering.

Machine Learning

  • Nyx PDF Classifier clean score 0.0486

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-can-you-get-free-robux-game-hack PDF link annotation
    • https://www.roblox.com/.IIn 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
font_00_sfnt_off00002103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2103 23020 bytes
SHA-256: 91a5f31cfd88eaa4eae88312bd9849f3346d78efc538020802283957248f10f6
font_01_sfnt_off000054d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54D0 18860 bytes
SHA-256: 3add24dcf1475cac500c121069f698e62b0696d093573e8c97a80decf3f01ac7

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