Malicious PDF — malware analysis report

Static analysis result for SHA-256 896e1d6ad5800226…

MALICIOUS

PDF

36.6 KB Created: 2020-04-10 07:21:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: aa6ad53b404984d011edad0ec48e1b3b SHA-1: 06bbdc34144e5b182d090839618d26f2a8b66567 SHA-256: 896e1d6ad5800226549bf7bf56f8094179ba4d1ce7a2bc4f841efb5f3a2aa546
92 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier as malicious. It contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The primary link points to 'http://bshppopup.com/uploads/1/3/0/6/130639922/130639922.html#perfil+parametros+e+indicadores+para+docentes+de+educacion+secundaria', and the PDF also features a link farm hosted on 'napaairportcc.com', suggesting a coordinated effort to distribute content across multiple domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bshppopup.com/uploads/1/3/0/6/130639922/130639922.html#perfil+parametros+e+indicadores+para+docentes+de+educacion+secundaria
    • http://napaairportcc.com/uploads/1/3/0/6/130620543/da71f09.pdf
    • http://krav-maga-online.com/uploads/1/3/0/7/130776684/6528192.pdf
    • http://jenalexis.com/uploads/1/3/1/6/131606420/e823f36.pdf
    • http://ferreboeuftherapy.com/uploads/1/3/0/7/130775694/4351448.pdf
    • http://welikitretreat.com/uploads/1/3/0/4/130488885/zorituguraxavido.pdf
    • http://redkiteavoca.com/uploads/1/3/0/5/130589042/bewurum.pdf
    • http://crosbyirontonmusic.org/uploads/1/3/0/9/130968967/c8097a982ab2da0.pdf
    • http://avatlasgroup.com/uploads/1/3/0/3/130323794/salegezirumabetix.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_off000064fa.bin
8cd38eb8271ac2aca99f09f0eb69b8c0159928d959c9e6582968ef01b94402bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64FA 8480 bytes

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