Malicious PDF — malware analysis report

Static analysis result for SHA-256 070292da53049c03…

MALICIOUS

PDF

34.8 KB Created: 2020-04-17 20:20:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ed8e3a002c135d84f81126a2b88371e6 SHA-1: 8eb42c4713629461c80b6fce2243920790f8beb5 SHA-256: 070292da53049c03cc9b792214806a5e24603a5bed62f7a40d71de1fb96d7ef0
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a mass of external links, many of which are algorithmically generated and point to other PDFs, indicating a link farm or SEO spamming operation. The document body, though heavily obfuscated, contains a URL that appears to be part of this scheme. The presence of numerous external links suggests an attempt to direct users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://la-malinche-mexican-restaurant.com/uploads/1/3/1/4/131482882/131482882.html#smok+alien+220w+guide
    • http://newmexicohighlandmeatprocessing.com/uploads/1/3/0/2/130272377/3059455.pdf
    • http://capitolhillclubmembers.com/uploads/1/3/0/4/130483236/metasefurapixe.pdf
    • http://earthalchemyarts.com/uploads/1/3/0/5/130588489/ninomu.pdf
    • http://janerasfit.com/uploads/1/3/0/7/130776241/b475c61b4.pdf
    • http://osohandmadesoap.com/uploads/1/3/0/9/130969862/5786042cd3.pdf
    • http://abnconsultancy.com/uploads/1/3/1/6/131637247/a3551.pdf
    • http://idealconstructiongroup.com/uploads/1/3/1/6/131606046/wipevexavasud.pdf
    • http://pipelinepress.com/uploads/1/3/0/8/130814226/jijitoxezumula_rujivobexiz.pdf
    • http://a-posh-event.com/uploads/1/3/0/6/130622089/1294684.pdf
    • http://turquoiseboutique.shop/uploads/1/3/1/3/131398054/7784564.pdf
    • http://wealthmgmt.info/uploads/1/3/0/2/130272505/5454967.pdf
    • http://vozclara.net/uploads/1/3/0/9/130969820/xulidopi_jizuxinazefo_repukadegidaf_xifel.pdf

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