Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac563948e3847810…

MALICIOUS

PDF

42.7 KB Created: 2020-03-30 13:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 66cb2c9462092d22478333a7db414d18 SHA-1: 8c398573dd4cb68a007432e1642465449edd1c6d SHA-256: ac563948e384781020310b48f445a74300022bac189426dec9d4a63769a54aff
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 to other PDF files hosted on various domains, indicating a link farm or distribution network. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, suggesting the primary purpose is to manipulate search engine results or distribute content from these linked URLs. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of the immediate content's intent beyond the link farm.

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://sweetestdreams.org/uploads/1/3/0/8/130813917/130813917.html#materials+for+interior+environments+pdf
    • http://howardscreativecustoms.com/uploads/1/3/0/6/130639325/3ec4f.pdf
    • http://keekeesicecream.com/uploads/1/3/0/6/130620846/4384330.pdf
    • http://gardnerssafetyconsulting.net/uploads/1/3/0/6/130620345/dcdb64c57c0f.pdf
    • http://wakeup57cafenespresso.com/uploads/1/3/0/7/130739923/tudupipot.pdf
    • http://thequeensofheart.love/uploads/1/3/0/4/130435726/podozaxufidupisuvag.pdf
    • http://glynisfullwood.com/uploads/1/3/0/9/130968956/jixuxasaviruz.pdf
    • http://jordankrimston.com/uploads/1/3/0/5/130551058/993bd5ff6af32f.pdf
    • http://thebabyguynyc.com/uploads/1/3/1/3/131384171/61233bf1.pdf
    • http://edjenkinswoodworking.com/uploads/1/3/0/4/130476866/rixoxetesikatimoma.pdf
    • http://valdiborgazzette.com/uploads/1/3/0/5/130588957/2511640.pdf
    • http://royaltycarpentry.com/uploads/1/3/1/3/131379231/tadepivud-puzurinufum-sevamiv.pdf
    • http://kristenbarneich.com/uploads/1/3/0/7/130739867/kafiralotiwofelati.pdf
    • http://vk-podarki.site/uploads/1/3/0/4/130477829/jobovemafofeb.pdf
    • http://www.rawindianhairs.com/uploads/1/3/0/4/130483821/vifetonifepoxu.pdf
    • http://freetaxslayerpro.com/uploads/1/3/0/5/130588333/b5866.pdf
    • http://ljusvart.com/uploads/1/3/1/3/131381481/9f4261ab82.pdf
    • http://cityonloc.com/uploads/1/3/0/5/130590029/sebadab-nuxarerax-galofobadafa.pdf
    • http://southeastpaving.irish/uploads/1/3/0/9/130969801/4353654.pdf
    • http://kalitaflooringsource.com/uploads/1/3/0/2/130273799/kovuwukametage.pdf
    • http://the6thmanmacclub.com/uploads/1/3/0/2/130289756/gilup.pdf
    • http://trailsntrends.com/uploads/1/3/0/2/130273581/2683827.pdf
    • http://studio44.info/uploads/1/3/0/6/130639463/511eeff90e.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_off00007e9d.bin
287cce9ffd5de43c819f2854e75e6ba3e3af6882f7f83c19a3d1518930a3016d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9D 7880 bytes

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