Malicious PDF — malware analysis report

Static analysis result for SHA-256 478a933822667f17…

MALICIOUS

PDF

46.7 KB Created: 2020-10-29 01:51:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: c6da3778d29e47994b97af0acfbc2870 SHA-1: 10157a7c4ed419d86a29c6a5ac5676d49654f00d SHA-256: 478a933822667f173a401264b45637ada698634f790191afb5fc8a91c62a37a4
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/56ad63a.pdf.
  • 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.
  • 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://gettraff.ru/123?keyword=34+ddd+bras In PDF document text
    • https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/56ad63a.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/9470675.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409395/normal_5f9424dc2c068.pdfIn PDF document text
    • https://latenenagizogip.weebly.com/uploads/1/3/2/6/132696064/1309028.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370263/normal_5f8dbbb65e4cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372373/normal_5f93120894e01.pdfIn PDF document text
    • https://jarofudi.weebly.com/uploads/1/3/1/4/131408364/4f1696.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/nigimul/distance_speed_time_formula.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/24_7_capitalismo_tardio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f131484-d459-449a-a70c-1c01b044d3af/60376964163.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/pool_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/analogy_and_classification_questions_for_ssb.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/ee_cummings_anyone_lived_in_a_pretty_how_town.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/sabivixanumilisadaxebub.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/54350963985.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/chiang_mathematics_for_economists.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/olympus_digital_voice_recorder_vn_5200pc_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/boniwidudakiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a76ed3dc-fe77-4187-8a5d-aa88666584ec/penapowepepirezetonos.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_off0000764c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x764C 5084 bytes
SHA-256: 476c9d0d0580ce3976e9553ffdce77ca10b4a2367448c7c03a5523cdcd977fac
font_01_sfnt_off000087a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A5 11080 bytes
SHA-256: 9ed3941cd532ce504a0a0a91909cbe90d6a515b0638c80142d6212fea825388b