Malicious PDF — malware analysis report

Static analysis result for SHA-256 38654a975574c71e…

MALICIOUS

PDF

71.4 KB Created: 2021-02-03 21:58:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 07548a44136948cef8a225d9bfaa3bb0 SHA-1: f31e00602bb1c33753b26ae349a83fcd775d355f SHA-256: 38654a975574c71e3fc9aa9e80958e10df6ebf261cf7626efb1ea28d214c24f0
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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=cormac+mclaggen%252Fharry+potter+ao3 PDF link annotation
    • http://prizinsta.online/murodixekizuxiverekwmg8a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389108/normal_5fed7d146d330.pdfIn PDF document text
    • http://alsamcctv.com/lista_de_adjetivos_em_portugues6c7pi.pdfIn PDF document text
    • https://cdn.sqhk.co/ximepadogi/hdiihbW/war_communism_definition_world_history.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422137/normal_5ff30daf4899a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454561/normal_6008826344cf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495240/normal_5fd283f98a5d7.pdfIn PDF document text
    • https://dopapebo.weebly.com/uploads/1/3/4/8/134870178/nakuzatexagat-makewoxajil-xuwiro.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417325/normal_6003d1fa1caaa.pdfIn PDF document text
    • https://cdn.sqhk.co/vefomatakin/dgdPjii/room_finder_for_among_us_electrical.pdfIn PDF document text
    • https://cdn.sqhk.co/rejibebadit/gchhijd/lejaxodujivijowuvopemi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404750/normal_5feb82771106c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493602/normal_5fed09e14b49b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454673/normal_5feb95ec28d50.pdfIn PDF document text
    • https://jadojojipolukot.weebly.com/uploads/1/3/5/3/135337887/gedijaden-rezig-sobekeji.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/gujutavevive/5103396897.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/adblock_android_10.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/articles_of_confederation_vs_constitution_worksheet_answers.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_off0000d998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD998 5376 bytes
SHA-256: 55c05345da67aebf4d7d9375629d6f35fbea633d0bcd040ed0ccb35c155f7569
font_01_sfnt_off0000ebc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC4 10912 bytes
SHA-256: 7ee8a5921124a4dd6c349a34f0d4581e1e4e94c7f1e2e42ba51821659a726799

Open this report in the interactive analyzer, or submit your own file for analysis.