Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a5238419f777c64…

MALICIOUS

PDF

44.9 KB Created: 2021-05-19 06:05:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ba4ef948ed1df5ba2e2c6bc9e09ebbfe SHA-1: e1ae2984e83450709352f59912617d65fdd000db SHA-256: 3a5238419f777c64348379e241adb605d7f8e11ee1f2238f9ea7032ee1b8724e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as offers for game hacks and generators. The primary lure URL is https://netcdn.xyz/app/479516143/windows-10-minecraft-free-with-java-game-hack, which is associated with a high-risk score. The document body, though partially corrupted, contains similar URLs and text suggesting a scam or phishing attempt. No scripts were extracted, but the embedded URLs are sufficient indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/479516143/windows-10-minecraft-free-with-java-game-hack In PDF document text
    • http://j-cook.pro/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • http://j-cook.pro/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • http://j-cook.pro/images/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://j-cook.pro/images/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://j-cook.pro/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://j-cook.pro/images/free-spins-coins-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000489e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x489E 24352 bytes
SHA-256: 4880f4d4e7a447376a8d452d6c8eba47002984daea643638b148c6b6a9034d80
font_01_sfnt_off000080c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C0 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008aab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAB 18972 bytes
SHA-256: 9d6b9c54d2a131b4fb739230225618891bd38f691818b7a412f84340786b5520

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