Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4f38912aa91810…

MALICIOUS

PDF

39.2 KB Created: 2021-05-22 03:47:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1fcbdcba712cd413a4a91918670e53e7 SHA-1: 8ab77bf81ba8366a28720fa19dc4e14344647ac1 SHA-256: 7d4f38912aa918106d712b1b16aac0d45f77382db8a898c458f6543ce147f672
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent call-to-action to 'CLICK HERE TO ACCESS ROBLOX GENERATOR' and links to a URL known to host malicious redirectors. The document body and embedded URLs suggest a lure for free Robux, a common tactic for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and malicious link heuristic indicate an attempt to redirect the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/huskybus.com-free-robux-game-hack In PDF document text
    • http://www.vista-design.hr/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-free-spin_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B2 25668 bytes
SHA-256: f956857a62c26c3e4de5db16238d5026e9e0fe9393adc50e30d367efcf75da02
font_01_sfnt_off00006d10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D10 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000076bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BF 18688 bytes
SHA-256: 6add98f93d6464e4673e157e466f8eac90a499b9ef5784f234ada041ea0169f0

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