Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4fa776eaeaf3f64…

MALICIOUS

PDF

34.7 KB Created: 2020-04-27 19:51:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 64688b6ac0ac836babd5af84a10808b4 SHA-1: 74bbe131cab3833b7b7577a3a621762e61b5e2e0 SHA-256: d4fa776eaeaf3f644f7125f35b52aa5d3b85a5ed034b44029b53cea48d2b4bc6
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, many of which point to seemingly unrelated domains and are structured to appear as downloadable documents. The 'DOC BODY' content, though heavily obfuscated, includes a reference to 'An inspector calls study guide' and a URL, suggesting a lure to a potentially malicious site. The heuristic 'PDF_SEO_LINK_FARM' indicates a technique used to artificially inflate search engine rankings, often associated with spam or phishing campaigns.

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://goseattlesounders.com/uploads/1/3/0/8/130874627/130874627.html#an+inspector+calls+study+guide
    • http://coastalblastingllc.com/uploads/1/3/0/4/130435518/timawedepu_nowevudof_potutokinil_bunifil.pdf
    • http://shopwithoutpants.com/uploads/1/3/1/3/131381802/237796.pdf
    • http://cleverscience19.com/uploads/1/3/1/4/131407535/wixumona.pdf
    • http://thetotalbasketcase.com/uploads/1/3/0/6/130639395/7113048.pdf
    • http://blindpartsbydave.com/uploads/1/3/1/3/131379268/riwodagimudex.pdf
    • http://premiergrouprealestate.com/uploads/1/3/0/7/130775624/7b1ce83.pdf
    • http://thesturmagency.com/uploads/1/3/0/9/130968925/4009c5.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_off000060f4.bin
6b8ee6492fa9b471bb8d85f145aca3454b877da3c8176ef7e787427c4f1c1bd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60F4 7844 bytes

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