Malicious PDF — malware analysis report

Static analysis result for SHA-256 e686be6816dafbc4…

MALICIOUS

PDF

34.7 KB Created: 2020-04-04 07:37:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 651067e8c1b3904efa3460dffa2cddc1 SHA-1: 6cd6dd4162267fb3b30e0dafa8a1db26ca79ee62 SHA-256: e686be6816dafbc41196426d9664c459215d492a6b15deceec5c2b7e4fd4081e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, predominantly using numeric slugs in the URL path, suggesting a link farm or SEO manipulation tactic. The embedded URLs are likely intended to lure users to malicious or deceptive content hosted on these external sites. No scripts were extracted from this sample.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://fruful.com/uploads/1/3/0/2/130287929/130287929.html#ffxiv+you+can+sense+something+swimming+below
    • http://remodelingfuel.net/uploads/1/3/0/2/130288854/sosobokib.pdf
    • http://motifrenovations.com/uploads/1/3/0/2/130288523/benur.pdf
    • http://gm-aicardi.com/uploads/1/3/0/6/130621896/bidaf-wavizovisizazet.pdf
    • http://avafoxfamily.com/uploads/1/3/0/5/130539726/800135.pdf
    • http://dirtyhippystore.com/uploads/1/3/1/3/131383813/bufavureguv.pdf
    • http://marcoadria.com/uploads/1/3/0/5/130541465/5ad96e5.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e0a.bin
6830f08f1aaa8bb93fd626c190bcb514c0fd5683750969994810cd8581ec7a65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0A 8380 bytes

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