Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c8e41a3b7f3e039…

MALICIOUS

PDF

72.0 KB Created: 2021-02-11 17:30:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7ce9996611932fd6f487d425d65ab33f SHA-1: 653609b39229b64b7cb1948477ff2ac1970740b8 SHA-256: 6c8e41a3b7f3e039bd7e948b98dc79f2e182311c9b9e52b63422dfb3472094fb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/wix?keyword=pediatric+gastroenterologist+near+me PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418184/normal_5fcded823d612.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/mjdjfct/bomewexedazanirebedo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412568/normal_60210755e92f9.pdfIn PDF document text
    • https://cdn.sqhk.co/lewivapawo/gfMeSG7/cricket_england_vs_australia_live_streaming.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486552/normal_602088252312d.pdfIn PDF document text
    • https://cdn.sqhk.co/lexebogefaj/hjriagi/83769181059.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381532/normal_5ff2311854ba3.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/vhdjcWg/kuzuzul.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/djeUGMw/drop_it_like_its_hot_meme_boy.pdfIn PDF document text
    • http://jitokinut.iblogger.org/yearbook_vocabulary_word_search_answers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401540/normal_5ff0e524b03a1.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/xabalaru/telisubogemupafawunos.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/atomic_structure_worksheet_solution_key.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_off0000ddc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC1 5260 bytes
SHA-256: 02cd261ba3ff102b3190fcb57e7d01243b5d70350b28fc5514dd50d49397ab2b
font_01_sfnt_off0000ef8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8C 10352 bytes
SHA-256: bda1e13b67989bf4fb3e8275520c7968b3ebf7a4f8e2031900c2bdd13cd6d104