Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8a22f446cb8ce9…

MALICIOUS

PDF

64.1 KB Created: 2020-11-11 19:44:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 2d69185bd7563937f2cc76b5e88b1e2d SHA-1: 1ae87154126ec9b933e3abc7095300f8b7952b41 SHA-256: aa8a22f446cb8ce99e52bae5593f7e2e2523ff707d488847b4fae82d879e1655
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://traffnew.ru/123?utm_term=axle+bearing+puller+autozone PDF link annotation
    • https://lukafitujukeme.weebly.com/uploads/1/3/3/9/133997152/3209355.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372361/normal_5f8bb1e0eadd5.pdfIn PDF document text
    • https://xawiwewediwo.weebly.com/uploads/1/3/4/0/134017039/3177013.pdfIn PDF document text
    • https://pagogaxuzogujo.weebly.com/uploads/1/3/3/9/133997845/913190.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446647/normal_5fa6024ac0c3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451762/normal_5fa161ac9c21a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369315/normal_5f8c4edb133ac.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/fb30e86e-ed61-4ab3-b16d-691db8a01099/36765789415.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ef95632-cdd0-43a4-8268-2ea463d36384/41246680119.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aa2d890-7333-4b72-8ee6-7d92ae01e5e6/97456953800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16938398-e41e-4003-b7be-a9214cb6a446/69662469944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d740e1bc-3d84-43fc-ad41-a862aa56241b/21305586517.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a420cc9c-1dda-461d-b7a1-a840b6d972a6/fisowovelubugotavesoxas.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_off0000bb47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB47 5056 bytes
SHA-256: f414da0d9e8be3e0f333b3a414e174f5833c8b34dc28f0df5f2a338b39cf8be0
font_01_sfnt_off0000cc95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC95 10904 bytes
SHA-256: 3855a5f64ade98e3c1ba2c980c1681f79b10ef91ecd40991c800e43f74189374