Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae757475b7f503e4…

MALICIOUS

PDF

34.3 KB Created: 2020-05-16 03:57:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63eada4910beb3294e9a57cb9b5a048f SHA-1: 83aa7866e7026062370199f4635c06d6f6aba6de SHA-256: ae757475b7f503e4fce5a14406cfdf78f930312b8bd3bd1f720a33adf5f7b741
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to similarly structured URLs on different domains. This pattern is indicative of a link farm or SEO scam designed to drive traffic to various sites. The document body, though heavily obfuscated, contains references to 'child psychology career information' and the authoring application 'wkhtmltopdf', suggesting a lure to potentially malicious or misleading content hosted on the linked domains.

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://teshuvah.international/uploads/1/3/0/5/130545698/130545698.html#child+psychology+career+information
    • http://technosphereinnovation.com/uploads/1/3/1/6/131636602/subaxexezexasi.pdf
    • http://saultlittleleague.com/uploads/1/3/0/7/130775017/gozomula.pdf
    • http://the-total-body-connection.com/uploads/1/3/1/0/131069978/e0bf86540696.pdf
    • http://xn--stationr-gamingdator-hzb.se/uploads/1/3/0/4/130483337/ec9290c43e.pdf
    • http://grandcadiz.com/uploads/1/3/0/3/130312951/nogepugaf.pdf
    • http://theloganoutlet.com/uploads/1/3/1/4/131407284/7872238.pdf
    • http://waconda.com/uploads/1/3/0/5/130550774/8366071.pdf
    • http://jazzyslimesuk.com/uploads/1/3/0/2/130287314/kepunita.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_off00005c79.bin
40858c7f8721d37e70e86ae4c079de9b4faff11bd7e737e2f6bf5ee4a73df505		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C79 9944 bytes

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