Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ddf8646e9c08587…

MALICIOUS

PDF

43.0 KB Created: 2021-05-13 03:00:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9b3a5f3b265f39b441262838bf8823d6 SHA-1: d9eb9e49df07cf0a0ef608da18dc8bc2b5cf5e71 SHA-256: 2ddf8646e9c0858739f5c913365b61da94b0f889c4e982c1b571de383ad625d1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising free generators for games like Coin Master. The document body and heuristics indicate a lure to a website that likely hosts further malicious content or exploits. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/collect-free-spins-coin-master-game-hack In PDF document text
    • http://cmfd.nl/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://cmfd.nl/images/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://cmfd.nl/images/coin-master-free-spins-2021-generator_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/minecraft_GM479516143.pdfIn PDF document text
    • http://cmfd.nl/images/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://cmfd.nl/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://cmfd.nl/images/free-daily-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://cmfd.nl/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://cmfd.nl/images/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://cmfd.nl/images/hack-game-coin-master_GM406889139.pdfIn 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
stream_003_off000049e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E5 26576 bytes
SHA-256: 7dfd809198d8cccde32c9ed4568565bf472f122a377b1b220af016fa9e81959a
font_01_sfnt_off000086e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E3 17960 bytes
SHA-256: 56908844ab102c912342fec259dbf5a97100868d5d877c05497f82053eb67f28

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