Malicious PDF — malware analysis report

Static analysis result for SHA-256 594eaef7636b3c2a…

MALICIOUS

PDF

36.3 KB Created: 2020-05-16 01:38:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94fca417976c92d5bd87cfd0aa3b4dc4 SHA-1: f0910a132ff5669efe8209fc841e3370482ec71b SHA-256: 594eaef7636b3c2ae767262f5cddf116a863829d8dc7b5a252e68619a531d1c8
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDFs hosted on various domains, indicative of a link farm. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this is not legitimate content but rather a mechanism for SEO manipulation or traffic redirection. The document body, though heavily obfuscated, contains the same URLs, reinforcing the link farm pattern. No scripts were extracted, limiting the analysis to the document structure and embedded links.

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://frameplug.com/uploads/1/3/0/7/130739720/130739720.html#joint+affidavit+format+india
    • http://glitzpageantrentals.com/uploads/1/3/1/4/131408100/ruravef-parefamibetemub.pdf
    • http://teguss.com/uploads/1/3/1/4/131438162/b712289e.pdf
    • http://jessicademczar.com/uploads/1/3/0/7/130740013/sawatu.pdf
    • http://twohorsefarms.com/uploads/1/3/0/4/130489262/lunatobefude.pdf
    • http://epianotab.com/uploads/1/3/0/6/130604694/7366641.pdf
    • http://kmoneak.com/uploads/1/3/0/2/130289458/savonejafap.pdf
    • http://akascreative.org/uploads/1/3/1/6/131637219/vaxugeralaro.pdf
    • http://myblogandlog.com/uploads/1/3/0/7/130740200/00a558bd9.pdf
    • http://longtailyarn.com/uploads/1/3/0/2/130270823/jadabesasibu-pilejamanot-rifezar.pdf
    • http://saravioletfoundation.org/uploads/1/3/1/4/131453695/7868a833.pdf
    • http://cabawhomes.com/uploads/1/3/0/7/130775215/6758840.pdf
    • http://hillslider.com/uploads/1/3/1/8/131856574/gikogewalevefax.pdf
    • http://pictureperfectpaper.com/uploads/1/3/0/6/130621163/5913782.pdf
    • http://sxull.net/uploads/1/3/0/3/130312991/f649f77213d446.pdf
    • http://valleyrage.com/uploads/1/3/1/4/131406253/03c93.pdf
    • http://selfdirectediep.com/uploads/1/3/1/8/131857060/jinabarokilari.pdf
    • http://sadestyles.com/uploads/1/3/0/2/130289224/tudaju-goworobofe-pirezaduku.pdf
    • http://investingprecision.com/uploads/1/3/0/6/130603887/dugalimap.pdf
    • http://149clifton.com/uploads/1/3/0/6/130604539/vijewugija.pdf
    • http://gingerspringerphotography.com/uploads/1/3/0/2/130287502/mijuzinagisima_wemogoz_bukigo_vupovewa.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_off0000644e.bin
7155670744e2a732b372aa8acc31c946979d65955904e21f223ca253bebae87a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x644E 9828 bytes

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