Malicious PDF — malware analysis report

Static analysis result for SHA-256 84fb9b4c022eef36…

MALICIOUS

PDF

33.8 KB Created: 2020-06-01 20:51:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a2c9fe03022d81e7e9af7038a5fc6f8 SHA-1: 3a51166ac1f9ba8bfa9c2552f3dcb458b405c439 SHA-256: 84fb9b4c022eef36df0eedde194d5be2e79b43719ce71e4251ff8995a1bf9ec0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a heuristic firing for a link farm, indicating an attempt to direct users to numerous external websites. The document body, though heavily obfuscated, contains references to a 'Product architecture example' and includes multiple URLs, reinforcing the lure. The primary intent appears to be driving traffic to potentially malicious or deceptive content hosted on these external sites.

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://kylieseducationcorner.com/uploads/1/3/1/4/131454466/131454466.html#product+architecture+example
    • http://coteaux-des-avelines.com/uploads/1/3/0/5/130552055/duwajubu.pdf
    • http://theladyofthestones.com/uploads/1/3/0/2/130289466/4225461.pdf
    • http://tmariedesigns.net/uploads/1/3/0/5/130551718/5398837.pdf
    • http://30greenstreet.com/uploads/1/3/0/3/130323515/ff4ace7.pdf
    • http://webmail.buchspielerrecords.com/uploads/1/3/0/2/130287426/84ff44e4.pdf
    • http://mx.martanycorp.com/uploads/1/3/1/4/131482944/fitolized.pdf
    • http://kylieseducationcorner.com/uploads/1/3/1/4/131454466/terms.html
    • http://kylieseducationcorner.com/uploads/1/3/1/4/131454466/dmca.html
    • http://kylieseducationcorner.com/uploads/1/3/1/4/131454466/policy.html
    • https://vasoponox.files.wordpress.com/2020/05/sigud.pdf
    • https://repaxazaw.files.wordpress.com/2020/05/fosesenetup.pdf
    • https://tovifavipimo.files.wordpress.com/2020/05/11925565321.pdf
    • https://zatugizatit.files.wordpress.com/2020/06/mojitutepuwixaj.pdf
    • https://wubegupo.files.wordpress.com/2020/05/46765337505.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_off000059c9.bin
2b4a13641886e6986a7ef81d6af5db1613dfb88602edd78a57188a585a841f39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59C9 10044 bytes

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