Malicious PDF — malware analysis report

Static analysis result for SHA-256 b14049cbcdfb8044…

MALICIOUS

PDF

44.7 KB Created: 2020-03-31 00:58:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6f683e517344a7d20fd03651e6224903 SHA-1: 2812b8738f143218c79da440fd570e0233edf320 SHA-256: b14049cbcdfb8044c921916158a7ae54c009f7e92c6ef5e117a016e7e7525b2f
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, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially obfuscated, includes a URL that points to a collection of other PDF files. This suggests a link farm or redirection scheme designed to lead users to a multitude of external resources, likely for SEO manipulation or to distribute malicious payloads.

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://lienandtanner.com/uploads/1/3/0/9/130969654/130969654.html#cuales+son+las+secciones+niif+para+pymes+en+colombia
    • http://eriebeacholdiesradio.com/uploads/1/3/0/2/130273624/893834.pdf
    • http://mindspringhealth.com/uploads/1/3/0/5/130590169/nagiropasofidetez.pdf
    • http://xam-dot.com/uploads/1/3/0/6/130639669/fufejob_pibuvarabat_tuvijixa_xudulap.pdf
    • http://74-123-75-133.mgwnet.com/uploads/1/3/0/4/130476144/1ca5682073.pdf
    • http://treenailsoakproducts.com/uploads/1/3/0/4/130435813/932621.pdf
    • http://aardrijkskundeklas.com/uploads/1/3/0/6/130620975/4156e.pdf
    • http://jnmovement.com/uploads/1/3/0/6/130639061/zenewubipezijuwedife.pdf
    • http://villafincas.com/uploads/1/3/0/6/130639259/9320931.pdf
    • http://ltrtx.org/uploads/1/3/0/9/130969154/7703761.pdf
    • http://augustsartwork.com/uploads/1/3/0/2/130271085/c78af1b448.pdf
    • http://amariesonline.com/uploads/1/3/0/2/130291640/8d9c071a3c.pdf
    • http://heartsel.com/uploads/1/3/0/2/130270792/6691426.pdf
    • http://simplyoakboutique.org/uploads/1/3/0/9/130969312/4716686.pdf
    • http://gloryofmaude.com/uploads/1/3/0/2/130270823/zibub.pdf
    • http://itawypro.net/uploads/1/3/0/5/130551019/daminap-noxul.pdf
    • http://poeticchange.org/uploads/1/3/1/0/131070305/bosabukiniruximuvut.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_off00006ca8.bin
e9de47ffa5dad15f3daa891631d6dd285ba378505efb07faffc7a6dd16e22926		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA8 9372 bytes
font_01_sfnt_off00008e74.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E74 16036 bytes

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