Malicious PDF — malware analysis report

Static analysis result for SHA-256 79358227ca2092fa…

MALICIOUS

PDF

65.7 KB Created: 2020-12-01 08:32:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 73db6e24be4a319d1a1551b00c715b14 SHA-1: fdbb032f22c38d91b8c012be82dfd4c38b1b386a SHA-256: 79358227ca2092faf9ea40dff15201eea4ae936cf691750e73e46bb7d12e5c4e
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://traffmen.ru/wb?keyword=android%20device%20os%20distribution In PDF document text
    • https://koxabiwepa.weebly.com/uploads/1/3/4/3/134309970/31a8132c4bd26.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/kexamoxusinixu/gilumufojeda.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/sexugitomakuravi.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/vinajoravo.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/bollywood_horror_movies_free_hd_quality.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/free_arcmap_10._5_full_version.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/kibusuxagaxowofejiw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d92f11f6a4198485658d/t/5fc121a9f81c9a2a0cca8246/1606492586060/pefurekawepolef.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/letter_of_intent_to_purchase_property_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc33b8b3dfdd95b60e431f6/t/5fc59b923c6ccf69f3200791/1606785938165/vamizixegufadija.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/computational_bayesian_statistics.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_off0000c43b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC43B 4880 bytes
SHA-256: bbba656effecfef02fd5285e07b6b69df923a0f972e77f86558402f1070e459e
font_01_sfnt_off0000d4e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E7 11224 bytes
SHA-256: df7a159f4e2f47ad8f094ea0c4e70db4691210cf60a60c705233abfeb3fd958a