Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e31c0da075db829…

MALICIOUS

PDF

41.7 KB Created: 2021-05-16 06:34:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9fcaf71028c2f602d385e1c17c2a8af3 SHA-1: bb82be4b67fcdbc3d99c30309ee8e1a7fd1771be SHA-256: 2e31c0da075db8299a23662700de6c35cc0fda18699e26d2791b80ad7baf8369
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as offers for game hacks and free in-game currency. The primary malicious URL is https://netcdn.xyz/app/406889139/free-games-like-coin-master-game-hack, which is also present in the document body. The presence of a visual download button lure further supports the 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/free-games-like-coin-master-game-hack In PDF document text
    • http://jdlogistic.cz/images/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://jdlogistic.cz/images/coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://jdlogistic.cz/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/regal-world-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlogistic.cz/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://jdlogistic.cz/images/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://jdlogistic.cz/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • http://jdlogistic.cz/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlogistic.cz/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://jdlogistic.cz/images/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://jdlogistic.cz/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://jdlogistic.cz/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://jdlogistic.cz/images/wurst-112_GM479516143.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_off0000498f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498F 24556 bytes
SHA-256: fc119d0bf94da61e7f0e2b69cfaeb0f7c76b8822884fa0a4c6ab114a9bf5e18e
font_01_sfnt_off00008147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8147 18140 bytes
SHA-256: 0fa8c8b4839815decb7824e6abfd23c338a1fcad8391028ddb14be23d50d94bc

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