Malicious PDF — malware analysis report

Static analysis result for SHA-256 91449d2b952aa335…

MALICIOUS

PDF

39.7 KB Created: 2020-03-29 09:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0d42db7185102d446801f4519f49e537 SHA-1: 0a52fea98730a4c4f5006b7becff1a7c7cfaf2a5 SHA-256: 91449d2b952aa3353f2612214fb920508f735c1a9d95a3d52768314858238af3
94 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 primary URL, http://zambiasafarihunting.com/uploads/1/3/0/7/130775573/130775573.html#que+es+el+modelo+neoliberal+en+mexico, and others point to domains that appear to be part of a link farm. This suggests the document is designed to drive traffic to these sites, potentially for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://zambiasafarihunting.com/uploads/1/3/0/7/130775573/130775573.html#que+es+el+modelo+neoliberal+en+mexico
    • http://runstrong-ie.org/uploads/1/3/0/6/130639292/d66a3280.pdf
    • http://northweststeamart-uk.com/uploads/1/3/0/4/130489128/14ef56c.pdf
    • http://abcainvestment.com/uploads/1/3/0/6/130639634/gigoduxarilim.pdf
    • http://uscallservices.com/uploads/1/3/0/2/130272352/2741432.pdf
    • http://digitalechomedia.com/uploads/1/3/0/7/130738950/4520009.pdf
    • http://savillebuilt.com.au/uploads/1/3/0/6/130639368/sivuledade.pdf
    • http://infiniteequinesolutions.com/uploads/1/3/0/9/130969459/21453ffbfa.pdf
    • http://nstarlight.com/uploads/1/3/0/4/130476661/finokotik.pdf
    • http://detroitfitclub.com/uploads/1/3/0/8/130814225/vaporiv-kepabapapof.pdf
    • http://customshirtsnq.net/uploads/1/3/0/6/130621714/sojalude.pdf
    • http://110foxrunroad.com/uploads/1/3/0/2/130272902/737ca6c3c.pdf
    • http://www.thecreativebdesignco.bettinanorton.com/uploads/1/3/0/7/130775971/1bf563a0.pdf
    • http://southerngrows.com/uploads/1/3/0/4/130489358/pilomakujevoxeg.pdf
    • http://elevate-customs.com/uploads/1/3/0/9/130969655/zefenijuwix-sekino.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_off000070a7.bin
42a1fa37cc3555d106757b620eff29e895d1e780a65968f5ae443e08b2a41eee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70A7 8628 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.