Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c7d6290fdad0628…

MALICIOUS

PDF

35.9 KB Created: 2021-05-23 02:07:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 78dc460f6d41ed14d36f1661af2426b7 SHA-1: a616aaa93ff69c3236c9a1ace2f834690b40dca3 SHA-256: 3c7d6290fdad062883e9da186f3051d16086fcdc1bfe6a31cc1cdd626bc050b3
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links to known malicious redirector infrastructure, specifically pointing to 'robux-match.com'. The document body also contains text and links related to free Robux and game downloads, indicating a lure for users. The presence of a visual download button further supports the malicious intent of directing users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/431946152/robux-match.com-free-robux-game-hack In PDF document text
    • https://semanasantacehegin.com/images/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-vip-roblox_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/how-to-get-free-roebucks-on-roblox_GM431946152.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_002_off000030ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30ED 24496 bytes
SHA-256: 6f48a5b79e4e2108dffd9154c68eaee88505f6cde426048c07a3c87bd4f3f0ac
font_01_sfnt_off00006919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6919 18904 bytes
SHA-256: 4a85ad6ffc73ad9b3f41fceca22de32e3ce7595015d69f53ae753139e52ac9f7

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