PDF static analysis report

Static analysis result for SHA-256 83311d60cd3e8511…

SUSPICIOUS

PDF

36.8 KB Created: 2021-05-12 20:45:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 72172fb52e8ea156d0f4c907b7f9a270 SHA-1: 00141296f02a3f3d11ea86e84911ab34c1453514 SHA-256: 83311d60cd3e8511effd080abc59f68afcf2d22be707aa453db83bb21d13be84
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link and call-to-action text related to 'free Robux', a common lure for scams and potentially malicious sites. The embedded URL points to a domain known for hosting such lures. While no scripts were directly extracted, the PDF structure and heuristics suggest it's designed to redirect users to a potentially harmful external resource.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-as-a-kid-game-hack PDF link annotation
    • 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_off000032b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B0 25524 bytes
SHA-256: 8704d892b2d3e4c499aff98f2dfaf00e182aeef94aac302e9aea6e43a693fcc5
font_01_sfnt_off00006dad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAD 18576 bytes
SHA-256: 4c8bb362127e72cdfb7b8bc61e06feb9a8380d66f35d9d696249482728f37543

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