Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd3dc79649fcb22b…

MALICIOUS

PDF

69.8 KB Created: 2021-03-06 04:09:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 29bb516f18c9c4b9b7d80785220136cf SHA-1: 8ad7fa053e84869360ac8d75a1a4a69f036832df SHA-256: fd3dc79649fcb22b7ec53d346d50dc8049f9925459b9306a48b77c807021ed9d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xajibur.ru/award?keyword=evan+moor+homeschool+curriculum+bundle PDF link annotation
    • https://nigelatadumave.weebly.com/uploads/1/3/4/6/134615228/rowupok.pdfIn PDF document text
    • https://durafozo.weebly.com/uploads/1/3/0/7/130740533/xavigomukula_lotasag_xegivovifo_teserepivurug.pdfIn PDF document text
    • https://firunonosud.weebly.com/uploads/1/3/6/0/136052948/ddda5c4a09.pdfIn PDF document text
    • http://galufixagomedo.getenjoyment.net/9983674819.pdfIn PDF document text
    • https://keduwamiboru.weebly.com/uploads/1/3/4/6/134669925/21a3b27575c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392215/normal_603d36a6e8eeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450434/normal_5fcf83631a9a6.pdfIn PDF document text
    • http://sitizinudex.getenjoyment.net/rotabewodagasa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425227/normal_600108aa00dcb.pdfIn PDF document text
    • http://pakirekugep.scienceontheweb.net/the_skin_im_in_audiobook.pdfIn PDF document text
    • https://rapaxexujimina.weebly.com/uploads/1/3/1/4/131454932/kamodelako_dulemulafarer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/daedc0d0-d2a9-482e-9ec1-cd0ab64bf9ca/revisokizuzes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e2f2ace-f62c-4c9a-8a4b-75eaaac5e97e/tagizeza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66f508c3-5427-4cb8-a432-2e66c2262253/nofodukovewewozose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9220308-96d0-4e14-8bf7-224461d752a9/dujizejuzaxinu.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/emerson_self_reliance_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/adoption_papers_kansas.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/how_to_get_tableau_product_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc4a6936-61c3-49e5-8163-bfd2813df8be/11191219357.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/freelance_makeup_artist_contract_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70abd142-6f50-4831-ad8f-048303f22f6a/what_is_jojo_part_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8668ea3-0c2b-4e8d-8a46-62624d576dec/norojofapovesozuvuvivazo.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/el_ser_y_la_nada_jean_paul_sartre.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_off0000d3a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3A0 5336 bytes
SHA-256: 3709e44fd47eabbfe7beb59f5ea2020aff7d69b5ddaf7e9b9e1e70268e9653ed
font_01_sfnt_off0000e59e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE59E 10520 bytes
SHA-256: ccf7fcae8c587fad86eabaca130a24c25bf0cba0f46025c88c6cb5626d697beb

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