Malicious PDF — malware analysis report

Static analysis result for SHA-256 45fa2aa388424e08…

MALICIOUS

PDF

39.0 KB Created: 2020-08-12 22:55:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 519bf2d2c48c09ca509a3e6eca4b4a4f SHA-1: c8e8451b957c5c366864e2775381cfeacabea468 SHA-256: 45fa2aa388424e084d49b6852aad17c6a5822f0a7f5b7eae3c3527bc5ac4e110
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to a malicious site. The document body, though heavily obfuscated, contains the same URL and references a document title that matches the URL's keyword parameter, suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm or SEO poisoning attempt to improve the ranking of the malicious redirector. No scripts were extracted from this sample.

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://ttraff.com/pify?keyword=attestation+d+h%25C3%25A9bergement+vierge+a+imprimer+pdf In PDF document text
    • http://files.haydenflooringservices.co.uk/uploads/1/3/0/7/130776481/5815333.pdfIn PDF document text
    • http://sirudiso.fairviewlakestudios.com/uploads/1/3/2/6/132681352/litigeji.pdfIn PDF document text
    • http://files.onstagesac.com/uploads/1/3/0/7/130776502/zuvirovo.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/1/0427/8353/9366/files/96317937503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/6220293011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8883/files/business_case_studies_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/viwuwexojodagipir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1914/0252/files/rapas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4186/5375/files/81848133071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6534/2117/files/385469013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/74294905311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5818/2809/files/late_bilingualism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/speak_now_book_download.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5706 5756 bytes
SHA-256: 7e6c746cce294c9ac4f41ab65c81ebca608b36e95fd6b15f36ea4d9727d3d657
font_01_sfnt_off00006a29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A29 11128 bytes
SHA-256: c38bd3f24f6d90a56319fa23f855dd35c75decc24d6421c5ad60c0e616dc740f

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