Malicious PDF — malware analysis report

Static analysis result for SHA-256 a430522056c3cba5…

MALICIOUS

PDF

36.0 KB Created: 2021-05-13 06:46:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f6f1048a74eb034c1be870943cc84c2f SHA-1: 18c77086100bc0839453b77add5f4b47301aa235 SHA-256: a430522056c3cba50190d99908efe963dc3326fe87f646ce8617a100463bbc72
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded text and a link that strongly suggests a phishing attempt, specifically a lure for a "free Robux generator". The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that the embedded URL leads to known malicious infrastructure. The document body also contains a call-to-action phrase, further supporting the malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0282

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/huskybucks.com-free-robux-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000342a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x342A 23796 bytes
SHA-256: b35ad4579a92e6a76d0aae7a112618392cf1d677d08960ab962b64f6c5e90dea
font_01_sfnt_off00006a08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A08 18688 bytes
SHA-256: 6988f73f4b0746331af176c61d8a6d12afd54d9d4021c1ba8a7576897a1c52a2

Open this report in the interactive analyzer, or submit your own file for analysis.