PDF static analysis report

Static analysis result for SHA-256 b31e04ddc2c229bb…

SUSPICIOUS

PDF

39.9 KB Created: 2021-05-11 03:03:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 98c72d31269e01521e3281c1ff974a9f SHA-1: 0d24e80c7c6c04f83f1018941b88654571628676 SHA-256: b31e04ddc2c229bb92c3825f830daec45dfe3bc88c5a00b46a070db8e8bf31df
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a prominent lure for a "Coin Master Free Spins Hack" and includes a call-to-action phrase. The primary external URL points to a site offering this hack, which is a common tactic for phishing or malware distribution. The heuristic firings strongly indicate this is a redirection lure for a game hack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/406889139/coin-master-free-spins-hack-but-no-surveys-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000365e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x365E 25396 bytes
SHA-256: e013c372c51c30c2b0c252fa0b3a209f7a0aac22205f938a4dc4457f0837adc4
font_01_sfnt_off00006fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB3 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off00007956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7956 18708 bytes
SHA-256: e0937bcd33a3b629f0687db8d98eacd8293f1078019919402bc9ac6e2a33e1b3

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