Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba68a0d1ffbcde67…

MALICIOUS

PDF

43.2 KB Created: 2021-05-16 15:30:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 662f5b3d476ca194974c55283ff111e9 SHA-1: 52ab17de39dd6df37ab1147b2341c6bce280dc3d SHA-256: ba68a0d1ffbcde67b425b0e1cdf2b1c6105b76b181ccaaadef7f7df07d21005d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a malicious redirector link and is flagged by an ML classifier, indicating malicious intent. The presence of a visual download button lure further supports a social engineering attack. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to potentially harmful websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/freespinandcoinblogspot.com-2021-11-coin-master-free-spin-and-coin-links.html-game-hack In PDF document text
    • https://happypipers.ch/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://happypipers.ch/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • https://happypipers.ch/images/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • https://happypipers.ch/images/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • https://happypipers.ch/images/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • https://happypipers.ch/images/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://happypipers.ch/images/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://happypipers.ch/images/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • https://happypipers.ch/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://happypipers.ch/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://happypipers.ch/images/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • https://happypipers.ch/images/free-spins-coin-master-links_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_off000049fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49FA 24692 bytes
SHA-256: d4180bea31167780056bd53a7eb9c6d33b6ecbff520c4b46a2a40b8caa70360f
font_01_sfnt_off00008286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8286 19676 bytes
SHA-256: 602358bd088794d20595d9cc7919492642499f31adc5e429b6460d6993573a2b

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