Malicious PDF — malware analysis report

Static analysis result for SHA-256 a79e187fc9dbc39e…

MALICIOUS

PDF

48.5 KB Created: 2020-03-31 06:51:06 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 58c6204b379643299d314be1a04983e4 SHA-1: 4a3288484199b7cced3380092fbd1f123607e84a SHA-256: a79e187fc9dbc39ef99781d6662e39cb7d0d75ad745f0b23532a145fc4ea7671
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, includes a URL that points to a similar structure of links. These links likely serve to manipulate search engine results or redirect users to malicious sites. 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://thesingbabysingshow.com/uploads/1/3/0/7/130738789/130738789.html#como+grabar+una+cu%C3%B1a+de+radio
    • http://thegolfsight.com/uploads/1/3/0/7/130775758/nafuwub.pdf
    • http://riversnetwork.net/uploads/1/3/0/7/130775383/papomoxiwaduta.pdf
    • http://bsgfinancial.com/uploads/1/3/0/6/130639852/9529818.pdf
    • http://dlparkerknives.com/uploads/1/3/0/2/130272233/joroja.pdf
    • http://indeeyum.com/uploads/1/3/0/3/130313333/gufagiru.pdf
    • http://bellology.com/uploads/1/3/0/5/130588846/sunusujexibanopage.pdf
    • http://tranquiloasis.net/uploads/1/3/0/6/130620604/f1418f5d0e2dc1.pdf
    • http://2018vote.us/uploads/1/3/0/8/130874681/kobovuvete.pdf
    • http://shelterislandhouse.org/uploads/1/3/0/6/130639784/3296510.pdf
    • http://besinfinityinspections.com/uploads/1/3/0/6/130620910/sawusob.pdf
    • http://yiechan.com/uploads/1/3/0/7/130738945/geluxek.pdf
    • http://paramaproperty.com/uploads/1/3/0/6/130604348/bozafatilalar.pdf
    • http://greenacresfarmmilantn.com/uploads/1/3/1/1/131163505/5480b.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_off00007d35.bin
1668b1065096becc676379f3dc540bb5a89a585e1c8fa5de260210de70ed1163		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D35 9172 bytes
font_01_sfnt_off00009e21.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E21 16036 bytes

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