Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eed4079830d37ca…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 21:10:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf01f7e6bf0b84c88888109d81056543 SHA-1: 0d21d47ef3ddd49e1ffc446a209ee45f34e859e3 SHA-256: 8eed4079830d37cafb395b72b9d4164496acfd8d338b4835afac7ae74f281383
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary lure URL is http://netcdn.tw/app/406889139/coin-master-level-3-game-hack, which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive users to potentially harmful content, likely as a precursor to further malware delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-level-3-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-no-human-verification-no-survey-pc_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/i-want-to-break-free-roblox-versin_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-elizabeth-songs_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-hack-the-northern-frontier-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/theme-park-tycoon-2-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-hack-legend-of-the-bone-sword-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/c00lkidds-roblox-hack-client-rc7_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-robux-easy-2021_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
font_00_sfnt_off00003001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3001 22540 bytes
SHA-256: 82b11e1c5f52b2f59b4db6ceb40ef3d09158d23a3df5beb7a298858a8575336f
font_01_sfnt_off00006292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6292 18196 bytes
SHA-256: 04e08f75d0dcb1ff2d1bd5e888b21509a5ecc658ea7bbb2878025403cee5e5ad

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