Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6028b841251329d…

MALICIOUS

PDF

33.2 KB Created: 2020-06-06 01:24:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b58567c535e3f9d3ce9022b11ced905 SHA-1: e9d4093f9ec82096ea63f797355dfb901a0927ba SHA-256: d6028b841251329d7dd860c8348c9c07ff47d6279864e2cb9f33671590cad19b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1598.003 URL Shortening

The PDF file contains numerous external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a large number of external PDF links. The document body, though partially corrupted, mentions 'Culminating activity humss curriculum guide', suggesting a lure to disguise the malicious intent. No scripts were extracted, limiting the analysis of direct payload delivery.

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://frameworxfilms.com/uploads/1/3/0/6/130604758/130604758.html#culminating+activity+humss+curriculum+guide
    • http://mta-sts.loftsofdallas.com/uploads/1/3/0/8/130873945/sulogiwowum.pdf
    • http://stevekovic.net/uploads/1/3/0/6/130604981/5283296.pdf
    • http://baaahh.com/uploads/1/3/0/7/130776695/0ee9b.pdf
    • http://frameworxfilms.com/uploads/1/3/0/6/130604758/terms.html
    • http://frameworxfilms.com/uploads/1/3/0/6/130604758/dmca.html
    • http://frameworxfilms.com/uploads/1/3/0/6/130604758/policy.html
    • https://kakenobejoz.files.wordpress
    • https://xudawipopa.files.wordpress.com/2020/06/zunewavu.pdf
    • https://dubepeta799946690.files.wordpress.com/2020/06/27305324295.pdf
    • https://jutaburo.files.wordpress.com/2020/06/27793621573.pdf
    • https://dakemevodugu.files.wordpress.com/2020/06/63416827222.pdf
    • https://bifipararavo.files.wordpress.com/2020/06/jatitafipiribuw.pdf
    • https://loxomelamuj.files.wordpress.com/2020/06/92727312173.pdf
    • https://kakenobejoz.files.wordpress.com/2020/06/tumodopofetume.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_off000057d9.bin
554b3209cde6dd01c3ac3cc2c2ec161bef7ee3b66f94a5176608e18851af9c83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57D9 9748 bytes

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