Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d3f70031173553…

MALICIOUS

PDF

42.2 KB Created: 2020-04-06 06:29:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 60cab02e68392ba2fe7728fc94ba467e SHA-1: ea86c7a2587c193c8ba1d7a8ded1227516bbe20e SHA-256: b5d3f70031173553c010736cb1a3d31dd76a856712bc32e36818841fdda4c189
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary URL found is http://littlelaborsoflove.com/uploads/1/3/1/4/131408854/131408854.html#division+de+numeros+racionales+ejemplos+wikipedia. This suggests the document's purpose is to redirect users to a network of websites, likely for SEO manipulation or to serve further malicious content. 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://littlelaborsoflove.com/uploads/1/3/1/4/131408854/131408854.html#division+de+numeros+racionales+ejemplos+wikipedia
    • http://prestigesecuriteprivee.com/uploads/1/3/0/5/130539325/bifutiweju_bigoj_deganixuzeben_pipinikas.pdf
    • http://risemexico.org/uploads/1/3/0/7/130740015/rutorujokefetop.pdf
    • http://michellevp.com/uploads/1/3/1/4/131438432/2947996.pdf
    • http://carterandcompanybroker.com/uploads/1/3/0/4/130476221/sedisa.pdf
    • http://sosnegocios.net/uploads/1/3/0/6/130620537/4813941.pdf
    • http://marytere.org/uploads/1/3/0/6/130604441/b747a6c182e9.pdf
    • http://bungiewhy.com/uploads/1/3/0/8/130874615/sazivufirele-zixidu-kawaliwujonu-kigobi.pdf
    • http://sospop.net/uploads/1/3/1/3/131379944/kidumenelaxiv.pdf
    • http://ericscottwrites.com/uploads/1/3/0/7/130739831/magamogobatibe.pdf
    • http://bidgroup.se/uploads/1/3/0/6/130639410/soxalelaput.pdf
    • http://mariamesnitsari.com/uploads/1/3/0/5/130589135/zutesarafe.pdf
    • http://foothills-carwash.com/uploads/1/3/0/5/130590461/4588995.pdf
    • http://maslowlabs.org/uploads/1/3/1/0/131070152/mabixitimis_jepozumedazofi.pdf
    • http://mytablatures.com/uploads/1/3/0/3/130379126/c73cce7d3.pdf
    • http://msgllc.co/uploads/1/3/1/4/131407068/favupadefusex.pdf
    • https://educacion
    • 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_off0000710a.bin
f2bfc8c0b189ef041e79429fc57c95d160cca002018ca7ba149eb45f52d02b50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x710A 8140 bytes
font_01_sfnt_off00008f0b.bin
985cbd9ba5b629f1b749d04d852c0eecb5d8ad374186a1044a60da9476420dc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F0B 2788 bytes

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