Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfd2fba0f00671f1…

MALICIOUS

PDF

37.1 KB Created: 2021-05-14 06:38:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 37cd4b8ff5fc2675a729235997677ea0 SHA-1: 77e572c7004f7607885353920d0be97d50bbe08f SHA-256: bfd2fba0f00671f12aabda2faa8bc7a82a0babc6e84e977d9b183f8ac1ebee37
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to known malicious infrastructure, disguised as a lure for free Robux. The document body and embedded artifacts suggest a social engineering attempt to trick users into visiting a malicious URL. No scripts were extracted from this sample, limiting the analysis of its execution flow.

Machine Learning

  • Nyx PDF Classifier clean score 0.0313

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://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000032b6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B6 26436 bytes
SHA-256: 1d7b5781957d44a8aaa9dee3e502df2140fa7b2b10b89aadab7f25571d1173fc
font_01_sfnt_off00006e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E77 18688 bytes
SHA-256: 6add98f93d6464e4673e157e466f8eac90a499b9ef5784f234ada041ea0169f0