Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad01d34f006da99…

MALICIOUS

PDF

42.8 KB Created: 2021-05-16 04:38:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 15cfa37a5770923152b31b5a742be827 SHA-1: 565ef8cfddff25d012a48372af4c14253dec0977 SHA-256: 8ad01d34f006da99d062aa86074b84ac58deb9ffe9680c566fd02f755e594334
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, specifically advertising 'Coin Master Free Daily Spins Link' and game hacks. The ML classifier strongly flagged this PDF as malicious. The embedded links likely lead to phishing pages or further malware downloads, consistent with a social engineering lure.

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-daily-spins-link-game-hack In PDF document text
    • http://ines.co.rs/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/play-coin-master_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/roblox-hair-for-free_GM431946152.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_off00004ad7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD7 25208 bytes
SHA-256: e1af2249b4a87d54deb4be665a15e62ecc08399e50c894a665e19c76f401d523
font_01_sfnt_off00008464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8464 18476 bytes
SHA-256: 219409e4a96e727ac7d03afbf10b928993c8ec078f24206d8d8724722cb954a1

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