Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e5dd33315f47976…

MALICIOUS

PDF

42.4 KB Created: 2021-05-16 18:38:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ac4f13806e3f04f30476a349534f3356 SHA-1: a5a3d01a8e5a88dd5c59bc99c6277cdfc14b75a0 SHA-256: 9e5dd33315f479768f26f5839de17fcd9d61ebb748cebf6e6fa427a93ac2b900
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest the document is part of a campaign to trick users into visiting potentially harmful sites, likely for credential harvesting or further payload delivery.

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/coin-master-free-spins-link-31-march-2021-game-hack In PDF document text
    • http://greasley.online/images/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://greasley.online/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://greasley.online/images/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://greasley.online/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://greasley.online/images/give-me-robux_GM431946152.pdfIn PDF document text
    • http://greasley.online/images/free-flip-master-coins_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://greasley.online/images/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://greasley.online/images/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://greasley.online/images/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/static-moonactive_GM406889139.pdfIn PDF document text
    • http://greasley.online/images/coin-master-free-spins-2021-apk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047dc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47DC 25496 bytes
SHA-256: 1dc5dfdd9d7c606a769014459e7bfd472c743b283b25fd38272c667b098ec91d
font_01_sfnt_off000081c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C9 18796 bytes
SHA-256: 8fe5350273ebf35537686b917703007ab31f8899d424a5c1b3df5b865f6c5881

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