Malicious PDF — malware analysis report

Static analysis result for SHA-256 6498f85a7a71b435…

MALICIOUS

PDF

36.5 KB Created: 2021-05-21 11:01:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: d9d96a65efb07bb90c2a9b9ab203216e SHA-1: 03fd8df1dec992e32ea1614d28f9f13fd5bacce1 SHA-256: 6498f85a7a71b435949bf39d3e08f93126405383a5ba014eda01c3ac58a9c709
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically advertising a "Minecraft 1.16 Free Game Hack". The ML classifier also flagged this PDF as malicious. The document body includes a call-to-action phrase, reinforcing the lure to click the malicious link.

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/479516143/minecraft-1.16-free-game-hack In PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/get-robux-com_GM431946152.pdfIn PDF document text
    • https://www.orbai.ai/uploaded_files/userfiles/files/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • https://youtuIn 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_off00003537.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3537 25272 bytes
SHA-256: 4ef4ee17fb29e637999d8a379afd929844a0bfaedb8f08e024116d2a07e15e44
font_01_sfnt_off00006e7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7A 17908 bytes
SHA-256: 8310a8a70ae495dc6c5eef129ed79833fdc59e5dcfd7da15d006a4c6032bb3ed

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