Malicious PDF — malware analysis report

Static analysis result for SHA-256 569252c13bb144b4…

MALICIOUS

PDF

71.0 KB Created: 2021-03-05 01:09:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0c17ad80dbe606678243e1ea351832d0 SHA-1: 0e64f46d566bc3fb42f7aa8b7c7ba6c2f46db5a3 SHA-256: 569252c13bb144b4f1b078f178ed7a596088116102c36b76e2a28f26ff424f6d
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://jacksth.ru/wix?keyword=traulsen+controller+manual PDF link annotation
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/peruji-nixexovipubef-sowuzololatofe-kupexof.pdfIn PDF document text
    • https://pesasujax.weebly.com/uploads/1/3/4/8/134882000/4394849.pdfIn PDF document text
    • https://nozirokopen.weebly.com/uploads/1/3/4/6/134613575/d7db8.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/is_sonic_soft_serve_real_ice_cream.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469834/normal_5fcff6553652e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369486/normal_5ff966793f3d9.pdfIn PDF document text
    • https://vijizonumek.weebly.com/uploads/1/3/6/0/136034009/rizeburubazobak_kasexewam_wigozubodub_sovevatita.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480728/normal_5fd7be458b606.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448126/normal_6010fc7f96322.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424630/normal_5ff77704bc6c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495997/normal_602253447b06c.pdfIn PDF document text
    • http://kekijojovif.sportsontheweb.net/sarekezivek.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/rokuwapesu/tusibetawojo.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/mammut_smart_alpine_guide_mode.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/best_answers_interview_questions_biggest_weakness.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/insidious_2_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/zitejunelad.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/2019_tamil_full_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/excel_2007_worksheet_greyed_out.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/31970504231.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/15549028334.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/jawawuvuzinosavipusevuba.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_off0000dc3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC3E 4896 bytes
SHA-256: 2b982135c6efdb087d9f141a537b585cc4b4cd7401a5155ba76e6cefd380d981
font_01_sfnt_off0000ecc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC3 9972 bytes
SHA-256: 88327b903d597675ecc97cf0d0237d5b6ce857a813fc876d817bebc00d50d2fc

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