Malicious PDF — malware analysis report

Static analysis result for SHA-256 9474e2362331e193…

MALICIOUS

PDF

38.1 KB Created: 2020-06-15 06:16:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5a89a259427d287fe00b2281ba67140 SHA-1: 4ab1686b956517a198fa73bc96e71bdf6e9f2e25 SHA-256: 9474e2362331e193a5fc55b0505f6f68caa74a58ef5ae08d883ca7ad55cf0a86
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a URL that points to a collection of PDF files hosted on various domains. This suggests a tactic to manipulate search engine results or to distribute further malicious content through these linked PDFs. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://superiorplanthire.com/uploads/1/3/0/4/130476385/130476385.html#el+contrato+moral+del+profesorado+pdf
    • http://marthym.com/uploads/1/3/0/7/130739190/2839089.pdf
    • http://dominus-santos.info/uploads/1/3/0/9/130969972/78c4f8dc.pdf
    • http://autodiscover.jordantaxserviceinc.com/uploads/1/3/1/8/131856161/lujuvoxa-dusukidipad-tumerup-wunepuke.pdf
    • http://kingdommadetreats.com/uploads/1/3/0/5/130540304/womuzav-gudakegi-poxope-rupere.pdf
    • http://mta-sts.carolynnsmontessori.com/uploads/1/3/1/8/131856103/jinuxo.pdf
    • http://summitsales.co/uploads/1/3/0/4/130436482/074f46f0a4db38.pdf
    • http://wellreadpro.org/uploads/1/3/1/4/131454335/palaxojezepoxisowute.pdf
    • https://vemavijuna.files.wordpress.com/2020/06/61439089551.pdf
    • https://jowaroze92321812.files.wordpress.com/2020/06/lozuzikevito.pdf
    • https://zexivavazi.files.wordpress.com/2020/06/nijuxofiluvututuwamov.pdf
    • https://zomifuv.files.wordpress.com/2020/06/70497283115.pdf
    • https://wesobitid.files.wordpress.com/2020/06/40585865148.pdf
    • https://jenemipet977039864.files.wordpress.com/2020/06/50276124272.pdf
    • https://kibewozotag.files.wordpress.com/2020/06/19339042858.pdf
    • https://wazipugakor.files.wordpress.com/2020/06/34237755060.pdf
    • https://nipatojubob.files.wordpress.com/2020/06/dalotafirojalimineb.pdf
    • https://vakaximez.files.wordpress.com/2020/06/8756863634.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/
    • https://zexivavazi.files.wordpress.com/20

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a27.bin
f2b90f61a49b881230cbf087dc639d0f7182ce94e44af5a36aad4a58198c06d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A27 10604 bytes

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