Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ef8f322eddd3cfb…

MALICIOUS

PDF

36.9 KB Created: 2020-03-30 04:59:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4a197a675cd5938f97332d0900900c6c SHA-1: 0e64ab4861f8d043a92eeaed4e026667eede0195 SHA-256: 4ef8f322eddd3cfbde673709992c9f453122f482c3169a335cefa39ab2421cd4
62 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a large number of external links, indicating a link farm or distribution mechanism. The document body, though partially corrupted, contains URLs pointing to various domains, suggesting the primary purpose is to redirect users to external content. No scripts were extracted, limiting the analysis of direct payload execution.

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://jabbottphoto.com/uploads/1/3/0/3/130323754/130323754.html#actividades+de+proporcionalidad+para+quinto+grado
    • http://insightnewton.com/uploads/1/3/0/6/130621588/b5f0838.pdf
    • http://takeakne.com/uploads/1/3/0/4/130476720/4c407.pdf
    • http://dialin.morganadvisory.com/uploads/1/3/0/6/130621477/xenijoxukokem_kuguxakoligiri_migebepakiduru_jisovizo.pdf
    • http://abxstaffingagency.com/uploads/1/3/1/1/131164537/3988794.pdf
    • http://zebini.com/uploads/1/3/0/5/130589450/755166.pdf
    • http://minimumtread.com/uploads/1/3/0/9/130969343/805c365ae09.pdf
    • http://everyoneskitchen.com/uploads/1/3/1/4/131437648/ab96ee2e7876f0.pdf
    • http://polestartechnologyassociates.com/uploads/1/3/0/7/130775772/d0dbda896b7627.pdf
    • http://tiffanyhairsalon.com/uploads/1/3/0/8/130814508/3381189.pdf
    • http://kleoniki.com/uploads/1/3/0/7/130776025/0b55c04ea.pdf
    • http://bulldawgscience.org/uploads/1/3/0/6/130604646/nerututetikobir.pdf
    • http://southeastpoolservices.com/uploads/1/3/1/1/131164122/1638872.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_off000064b6.bin
52d451e057d9a9cccd93dcb95316de4943574cf0d8eba10fc29ff7cb71da3f73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64B6 8716 bytes

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