Malicious PDF — malware analysis report

Static analysis result for SHA-256 233b107cd2566e74…

MALICIOUS

PDF

39.5 KB Created: 2020-06-18 01:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8134df55a7763cc491ab4d58c07ccd94 SHA-1: 91ea9e4216656065db83762689c7487fa5fc4627 SHA-256: 233b107cd2566e740542f1474ef3bc532d177927f9050147afed89edd0c977f8
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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, many of which appear to be part of a link farm designed to manipulate search engine results or host malicious content. The embedded URLs and the document body text, though partially obfuscated, reinforce the presence of these external links. 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://cpanel.joshlucascpa.com/uploads/1/3/1/4/131411411/131411411.html#french+menu+guide
    • http://hostmaster.bristolplanthire.com/uploads/1/3/0/6/130621542/kujaxozibulotugave.pdf
    • http://spirithealingandresolution.com/uploads/1/3/1/1/131164043/5582513.pdf
    • http://cbdproductsusa.org/uploads/1/3/1/4/131483025/7089170.pdf
    • http://mail.jannieblom.dk/uploads/1/3/1/4/131454692/senamesikopa.pdf
    • http://beachbumbunny.com/uploads/1/3/0/5/130539837/zipexe.pdf
    • http://bahamasaugustllc.com/uploads/1/3/1/4/131410939/9773237.pdf
    • http://energy-frequencies.com/uploads/1/3/0/5/130539009/1561719.pdf
    • http://mngstories.com/uploads/1/3/1/0/131070148/xesejigut-koxalaj.pdf
    • http://rockingmfsporthorses.com/uploads/1/3/1/3/131398252/zopazow_xigurevi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f3e.bin
ad2866334cf73ae68a7a66c3c64126648580822b85192adcd5f5c47694cf914b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3E 4580 bytes
font_01_sfnt_off00006e84.bin
737bed34cb5b5d1afd2d05b45b5f1323822cf9cb673c1952dfe2a42f51f7d743		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E84 11228 bytes

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