Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd0a6a70ba3d7243…

MALICIOUS

PDF

42.0 KB Created: 2021-05-15 17:06:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fd85a8c9711f280c3739accc737f03aa SHA-1: bcd4cd4a25b509edc7c5eb42de4794274b342a90 SHA-256: fd0a6a70ba3d724335d8ec7a86042985ffbdeca2e8d435e7f941709df0eea432
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links and a visual download button, directing users to external sites that host applications. One of the primary links, https://netcdn.xyz/app/406889139/coin-master-3.2-android-mod-hack-apk-download-game-hack, is flagged as malicious redirector infrastructure. The document body and embedded links suggest a lure for game-related hacks or cheats, a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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-3.2-android-mod-hack-apk-download-game-hack In PDF document text
    • http://wirelesscommsys.com/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://wirelesscommsys.com/images/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://wirelesscommsys.com/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://wirelesscommsys.com/images/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://wirelesscommsys.com/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://wirelesscommsys.com/images/oginject-co_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://wirelesscommsys.com/images/get-more-robux_GM431946152.pdfIn PDF document text
    • http://wirelesscommsys.com/images/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • http://wirelesscommsys.com/images/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://wirelesscommsys.com/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://wirelesscommsys.com/images/free-spins-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47C5 24800 bytes
SHA-256: d6fe171460dd015762bc06d49d7f0b711f26938554edb41babfc349892e339b8
font_01_sfnt_off00007fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCF 18836 bytes
SHA-256: 10108fc4d754c0fb1f8ead0e24b5a94317ce5a25005e69ba196e7248b5abef1a

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