Malicious PDF — malware analysis report

Static analysis result for SHA-256 c22cf2069ce3f51c…

MALICIOUS

PDF

46.4 KB Created: 2020-04-08 09:40:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4ebb59a5e56a5a1e7e93c7c05dac2aec SHA-1: 758190d711c1a756a04dbbbe6458f7f9bd29c1c0 SHA-256: c22cf2069ce3f51cad4f3ea0705effddfddf2f80f0d0987fa057215a700f4e8c
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body contains a Spanish phrase 'Realizar auditoría en ingles' which translates to 'Perform audit in English', potentially a lure. 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://caesarsphiladelphia.com/uploads/1/3/1/3/131379041/131379041.html#realizar+auditor%C3%ADa+en+ingles
    • http://cannapendium.com/uploads/1/3/0/9/130969415/5162377.pdf
    • http://leegayle.net/uploads/1/3/0/8/130874573/nutes-migobuvewenul-tozipoli-ladunafamavexa.pdf
    • http://natasha-korecki.com/uploads/1/3/1/1/131164430/soxitifemuj-diwusumetix-tevij-gefamivewe.pdf
    • http://gmetimeshrits.com/uploads/1/3/0/6/130603824/8696426.pdf
    • http://englishlessonswithkate.com/uploads/1/3/1/4/131407353/412230.pdf
    • http://rossbrownscience.com/uploads/1/3/0/6/130639148/lotukidajuf.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_off000074bc.bin
4bf3f18a7689870c6d3758700746cae81b6d42a6b5687fd594539f386b0cea67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74BC 9072 bytes
font_01_sfnt_off000095a8.bin
65ca2fa633a49bc637c245e3469a24bec82cbb291b9200d770c42ee2df1588ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95A8 16096 bytes

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