Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8fab41dbb7b8d8b…

MALICIOUS

PDF

40.3 KB Created: 2020-03-26 14:42:05 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 83534de4183b3e37a7168b11fe342984 SHA-1: dda55011bc010431ef45280629b50e302460312e SHA-256: d8fab41dbb7b8d8b813acb044fd5f915d3fb7fcac1f3c62bf59eb46b4e8277b6
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are numerically or generically named PDFs, indicative of a link farm or SEO spam operation. The document body text, while partially corrupted, includes a title related to children's plays and mentions the authoring application, suggesting a lure to disguise the malicious intent. The primary attack pattern involves directing users to a network of suspicious websites.

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://cricketscbd.com/uploads/1/3/0/8/130815381/130815381.html#ejemplos+de+una+obra+de+teatro+para+ni%C3%B1os
    • http://shop.chitalranch.com/uploads/1/3/0/5/130545957/484449.pdf
    • http://www.nicholasbishopibcas.org/uploads/1/3/0/9/130969973/1744e2.pdf
    • http://jamski.net/uploads/1/3/0/7/130738710/gekem.pdf
    • http://www.ushealthdenver.com/uploads/1/3/0/5/130550764/zoduvuxufisezivuna.pdf
    • http://corvidaewines.com/uploads/1/3/0/7/130739107/da4f856.pdf
    • http://nolav.com/uploads/1/3/0/4/130483249/e2b67863547a.pdf
    • http://jesianequeiroz.com/uploads/1/3/0/5/130544468/pudadesiw.pdf
    • http://ns2.voterabhi.com/uploads/1/3/0/7/130776374/86c2570a694e0.pdf
    • http://nycellrepairs.com/uploads/1/3/0/5/130590305/3456970.pdf
    • http://sjetr.org/uploads/1/3/0/4/130435777/mulewabujapef_fofedoni.pdf
    • http://akuparl.com/uploads/1/3/0/9/130969237/2786203.pdf
    • http://lakelifephotobooth.com/uploads/1/3/0/6/130620731/xeroditel_rerarurera_viwoligexi_zenisil.pdf
    • http://mta-sts.mail.bergkoenig-gstaad.com/uploads/1/3/0/8/130874583/lemipodune.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_off00007112.bin
d5dcb1b125d77d1e1ce60904dc93e048e09166e41195a3cd0077508f836bc3cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7112 9060 bytes

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