Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5708623c7c7948f…

MALICIOUS

PDF

44.1 KB Created: 2021-05-16 02:34:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a3252d7155ffb1d490c49087bd067ebc SHA-1: e3c7f4b3076082832d2fa356b503eb47bc6673e8 SHA-256: f5708623c7c7948fecf594939f48dd6308d22362018d190cc70762b1fd93fee1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free spins" for popular games. The primary redirect URL is https://netcdn.xyz/app/406889139/coin-master-free-spins-2021-haktuts-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering lure designed to lead users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-2021-haktuts-game-hack In PDF document text
    • http://livebybuddhism.org/images/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://livebybuddhism.org/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://livebybuddhism.org/images/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://livebybuddhism.org/images/roblox-g_GM431946152.pdfIn PDF document text
    • http://livebybuddhism.org/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://livebybuddhism.org/images/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://livebybuddhism.org/images/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://livebybuddhism.org/images/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://livebybuddhism.org/images/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://livebybuddhism.org/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/roblox-free-pants_GM431946152.pdfIn PDF document text
    • http://livebybuddhism.org/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://livebybuddhism.org/images/unlimited-coin-master-free-spins_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046e8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46E8 24344 bytes
SHA-256: b74383001684059037b4bb9334afd28cc2a22c4b69963c1db6743695c0b811a0
font_01_sfnt_off00007ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA9 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8893 18600 bytes
SHA-256: 89773803d88a9f64dc5621ed6622458791426392b237d756dbefd16237d4c6e2

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