Malicious PDF — malware analysis report

Static analysis result for SHA-256 4452d093d4fdd190…

MALICIOUS

PDF

41.1 KB Created: 2020-10-05 14:57:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-07
MD5: dfeaab3687ac1559b5166939cc452ebf SHA-1: 006bd18a597b34b9b2e32de1dee0a051e42645b1 SHA-256: 4452d093d4fdd190fc5599a166350cd1deab3123b286f83edb543aa10be08e2e
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://cctraff.ru/strik?keyword=proposal+for+accounting+and+tax+services+pdf In PDF document text
    • http://vetowaj.jmplaser.com/uploads/1/3/2/6/132681501/26cd3.pdfIn PDF document text
    • http://files.michaelepton.com/uploads/1/3/1/3/131380177/b73b12f8.pdfIn PDF document text
    • http://files.smsband.org/uploads/1/3/1/0/131070011/c0197.pdfIn PDF document text
    • http://files.soulshineyoga.ca/uploads/1/3/1/0/131069934/debeb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9464/5672/files/acid_base_reactions_worksheet_organic_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5356/7130/files/angra_mainyu_fgo_bond_rewards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8838/0058/files/world_history_semester_2_exam_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/467614f3-bd39-4cbc-9db2-8a360207b5a6/guvejimolifuma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dba8d52-1e4f-45b3-b867-f6f57343bfdb/fetolopuvagewofiwefipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f354aff9-ccf5-4f94-a7e2-b3447a5b4dbe/10440169983.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83ee0871-e5e8-41c3-b091-5edf435a9c20/tononavedomozizogakulikex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/761b24f9-b4be-492d-8242-097313fd22ee/napavol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/4712/9766/files/nagako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9605/0337/files/98997016180.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_off0000607f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607F 5452 bytes
SHA-256: 50efeec9b78dcad7cd2d3844b5a2eac43122ff96778d4486a9aa836ed745f59d
font_01_sfnt_off00007323.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7323 10616 bytes
SHA-256: e8dec6ea55a352da7508af37ffe14dec3725fc77beb72c6a215e84aab0d74115

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