PDF static analysis report

Static analysis result for SHA-256 ad3a9c0e476e4676…

SUSPICIOUS

PDF

28.6 KB Created: 2021-07-06 01:51:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: d7f7f66fb4b63becfa90d633ff486430 SHA-1: f01c2cf5f87ffed85d2e9301c1c53d069e5481f4 SHA-256: ad3a9c0e476e4676faf534337d7a8f3da4e68d9fd07aaeeb85267a7ac6a08a20
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as suspicious. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier clean score 0.0330

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/406889139/mcmaster-club-coin-master-hack-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_001_off000019d9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x19D9 23108 bytes
SHA-256: d31968945f0d59ce7f23da919691bf4a5395f3599c927b89fa627b7c7640390b
font_01_sfnt_off00004d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D91 18636 bytes
SHA-256: 3ff0f4f75a0a90b9327d70ca0f6ece0c1b2cc0f38d50ceb21f3733858aa42cbb

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