Malicious PDF — malware analysis report

Static analysis result for SHA-256 00681dd35a1ee88e…

MALICIOUS

PDF

38.8 KB Created: 2021-05-21 02:30:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 09cc65fdef21977157110e3d545814bc SHA-1: 1fb49fd4f1168d64ef21a5a16bf6786cfbe7b112 SHA-256: 00681dd35a1ee88e759cf3763f2b6b8573b91f10eafe53e6913d70d1bac065df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The document body explicitly mentions 'Free Coin Master Spin App' and 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the lure. While no scripts were extracted, the PDF's structure and embedded links strongly suggest a phishing or redirection attack designed to lead users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/free-coin-master-spin-app-game-hack In PDF document text
    • http://brokermortgages.com/images/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/tiktok-famous-club-free-followers_GM835599320.pdfIn PDF document text
    • http://brokermortgages.com/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35D3 24888 bytes
SHA-256: 484327a1e5bccc7a87b031e9bc2c37d9db72f83014dd0495c8745685fe7fc2e5
font_01_sfnt_off00006ddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDF 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off00007780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7780 17884 bytes
SHA-256: 6a5fc0e5ee3990f98fff047e5d02c1443490e61ce795861dff478bab25fb071a

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