Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ca453299bc23a8…

MALICIOUS

PDF

70.3 KB Created: 2021-01-26 19:49:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 3d8a842612096d9c5c7a6d9b706957a1 SHA-1: 3dddbc42c752199364e107e787f398499c595086 SHA-256: 32ca453299bc23a82f9f29fb5ba4e97c9960e9c1d776c7385d4586f5665b91e6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://bologen.ru/123?utm_term=savannah+law+school+graduation+2019 PDF link annotation
    • https://texexodova.weebly.com/uploads/1/3/0/9/130970004/192e7332.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/a1ZshjR/71103575459.pdfIn PDF document text
    • https://cdn.sqhk.co/pirasemofoge/jdE2sgj/89451870041.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376612/normal_5ffac6d12656b.pdfIn PDF document text
    • https://cdn.sqhk.co/feduvefas/kjjP5ie/27259887525.pdfIn PDF document text
    • https://xizavuxovom.weebly.com/uploads/1/3/3/9/133986710/3287585.pdfIn PDF document text
    • https://cdn.sqhk.co/ropobemuma/CmjgjhD/tagutofisagusipijatofe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456143/normal_5fc8b2bdba623.pdfIn PDF document text
    • https://fenogelojana.weebly.com/uploads/1/3/4/9/134904444/fefokawufotif-wosewidaduf-bebadojiboba-tikuzetinu.pdfIn PDF document text
    • https://vidimepimexuja.weebly.com/uploads/1/3/4/6/134626803/geluraxifefut-xubabazum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/1013322644.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/mobile_blacklist_app.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/59221011140.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/kadavafoxo.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/form_ad-_343_payroll_action_request.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD405 5940 bytes
SHA-256: 29e929e9ba5a2c87daaf0d77c8d1669d2adb52f2bae8a41c9c42412b95cfc807
font_01_sfnt_off0000e84b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84B 10684 bytes
SHA-256: 5a29ce1144b6da7def3c9c2cf70c2bacc4ab86817f9bd42db3fce51cc7410837