Malicious PDF — malware analysis report

Static analysis result for SHA-256 24c03d203ae8224f…

MALICIOUS

PDF

34.1 KB Created: 2020-06-04 01:39:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70c7bc2121bbc0354f21ff27faea0c75 SHA-1: c1e0415c41614fe621534272e829473350e08359 SHA-256: 24c03d203ae8224fb6088c1153f91326e5692f1167876d57a9a80a18ad19155a
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body also contains several URLs, including one that appears to be a song chord page, which may serve as a lure. The primary attack pattern involves directing users to a vast array of external PDF files hosted on numerous domains, suggesting a potential SEO poisoning or content distribution scheme.

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://spectrumherniaclinic.com/uploads/1/3/0/7/130740623/130740623.html#little+brown+jug+chords
    • http://domainofart.com/uploads/1/3/0/7/130775382/7030236.pdf
    • http://fasthikejapan.com/uploads/1/3/1/3/131398025/3ae6b3f70d3f0.pdf
    • http://infinitydancestudios.com/uploads/1/3/1/1/131163902/e615405b36e.pdf
    • http://malaminih.net/uploads/1/3/0/4/130476744/f8cd3abef35.pdf
    • http://ndmoutreach.com/uploads/1/3/1/3/131384643/8313099.pdf
    • http://posco.info/uploads/1/3/0/2/130289338/4668668.pdf
    • http://loyalty.am/uploads/1/3/0/8/130814711/govutukebuti-keweniwaxiwenit-wufulolivefaj-novazi.pdf
    • http://spectrumherniaclinic.com/uploads/1/3/0/7/130740623/terms.html
    • http://spectrumherniaclinic.com/uploads/1/3/0/7/130740623/dmca.html
    • http://spectrumherniaclinic.com/uploads/1/3/0/7/130740623/policy.html
    • https://xuvuvev.files.wordpress.com/2020/06/kurisevase.pdf
    • https://tufasopud692774767.files.wordpress.com/2020/06/zusezorefukezetu.pdf
    • https://rutivozitewu429737331.files.wordpress.com/2020/06/katusuzavixumuxudanejiso.pdf
    • https://zamomewa.files.wordpress.com/2020/06/21978093438.pdf
    • https://wisetej.files.wordpress.com/2020/06/jixojulemof.pdf
    • https://nugirotowusi.files.wordpress.com/2020/06/juxijaw.pdf
    • https://xididegafe.files.wordpress.com/2020/06/19179656588.pdf
    • https://gopuzesi.files.wordpress.com/2020/06/63724505251.pdf
    • https://vikotefo.files.wordpress.com/2020/06/ronelurojuri.pdf
    • https://muforopolul.files.wordpress.com/2020/06/84817257247.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_off00005962.bin
9c6cd0a8fac154b01e0e9061dd75e4f00daaa55452bdcea4d0903f58defb875e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5962 10308 bytes

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