Malicious PDF — malware analysis report

Static analysis result for SHA-256 70dd4dcc2042d96b…

MALICIOUS

PDF

35.9 KB Created: 2021-05-23 00:09:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: eb1e8ae021d19a67e5d2573f2e239d88 SHA-1: 430b87e422678d080c69233ea417b881953d6678 SHA-256: 70dd4dcc2042d96b7de664cc5a55ff58aad1f2d96a70436984303733e5c686c4
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded text and a prominent "CLICK HERE TO ACCESS ROBLOX GENERATOR" call to action, which is a common lure for phishing or malware distribution. A critical heuristic identified a link to known malicious redirector infrastructure, specifically pointing to the URL https://netcdn.xyz/app/431946152/robux-match.com-free-robux-game-hack. This suggests the document is designed to trick users into visiting a malicious site, likely to download further malware or steal credentials.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F13 25956 bytes
SHA-256: 83da31b91b1d0a549fc99cf1ab765718b995ed2ceffbf4a0fb66767149d048eb
font_01_sfnt_off00006963.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6963 18904 bytes
SHA-256: 4a85ad6ffc73ad9b3f41fceca22de32e3ce7595015d69f53ae753139e52ac9f7