Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a416a49b3bd5290…

MALICIOUS

PDF

44.7 KB Created: 2020-08-13 21:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 35fb099aaa7471ffdb4756a8abfd28d9 SHA-1: 4bf93b0e85b11b1ce974a95b0054f26f14532a40 SHA-256: 0a416a49b3bd529087906fab4dd88c8761a0f701e3e77b23098ec6d841e65732
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector infrastructure at 'ttraff.com'. This redirector is likely used to obscure the final destination of the malicious payload, which is presented as a free font download. The presence of a large number of external PDF links suggests a link farm or SEO manipulation tactic to increase visibility.

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=squealer+regular+font+free In PDF document text
    • http://files.jhaytersmilestudio.co.uk/uploads/1/3/0/7/130739180/9986463.pdfIn PDF document text
    • http://files.byobeez.org/uploads/1/3/0/8/130813357/buridoje.pdfIn PDF document text
    • http://misinu.eurokreations.com/uploads/1/3/2/7/132710797/1350155.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/1/0428/8148/2919/files/tolobaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6587/6378/files/tales_of_the_arabian_nights_book_of_tales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/6799320973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3282/1412/files/al_andalus_history.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/foxowawozeturatizufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/dudeguxirofedurobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/foxug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/trait_d_aix_la_chapelle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/26786538075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/iptables_block_ip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8774/8519/files/canada_visit_visa_form.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 6

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_off000053d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53D5 4988 bytes
SHA-256: 48bf22363c3109eb61fdf1478bdb4056ec1ad7fc0a6a44a9aa13b2f7ea5d0033
font_01_sfnt_off000064d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D9 24784 bytes
SHA-256: e61aca6afa88d46fc0f38acd1a2517ec27bcab53f0cfa2e26904ecfa39681723

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