Malicious PDF — malware analysis report

Static analysis result for SHA-256 17fa3e8d7158ae66…

MALICIOUS

PDF

55.8 KB Created: 2020-08-09 23:23:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b8beea3a2ddc96e91075ef52811c9ab SHA-1: 2a2368057b22304ecb63199056169f9acd4b9fef SHA-256: 17fa3e8d7158ae664a08a7155bd4332f2b98173d0ee44e6705fe16500252b0f9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, including a redirector at 'ttraff.ru', suggesting a link farm or phishing attempt disguised as a document download. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs points towards an attempt to redirect users to malicious or SEO-spam content. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious lure.

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.ru/pify?keyword=toward+an+anthropological+theory+of+value+pdf In PDF document text
    • http://files.madisonrosefund.com/uploads/1/3/1/3/131378990/zumovudanipefip_menoruzizir.pdfIn PDF document text
    • http://files.authorangelawhite.website/uploads/1/3/2/7/132741556/2b41b.pdfIn PDF document text
    • http://files.arthousecafe.com/uploads/1/3/1/0/131070131/50d0779fb.pdfIn PDF document text
    • http://files.sustainability-and-social-innovation.com/uploads/1/3/0/7/130740249/1410599.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/1/0434/1497/8718/files/vaferozuwevajonero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5935/5558/files/23950602733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7717/9294/files/67756875107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/54860192758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5208/4898/files/oil_producing_countries_in_africa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2067/files/58393847959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7075/7791/files/17605073284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4682/1278/files/jirifedegudotop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6423/9014/files/nidadiwiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3290/3833/files/nezilavapuzofonivudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/kojivizozam.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_off00009c9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C9A 5444 bytes
SHA-256: 1971ba5eb10f16cecdc520352d218d95895230a862c93bd9cc40b947fd7bf289
font_01_sfnt_off0000af3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF3B 10188 bytes
SHA-256: fc629f5a9d550d1dbed491f4e86c0913fb80d0ec50edd05dbe6fedd9f60612f6

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