Malicious PDF — malware analysis report

Static analysis result for SHA-256 814691c28a1297c1…

MALICIOUS

PDF

59.1 KB Created: 2020-07-31 09:49:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd562110e246a5cc9df963e24e198291 SHA-1: 9107cb58577df2ae8c3ad4ca7ce2e296ff7edc67 SHA-256: 814691c28a1297c150d4f5e50097377831aca32333c11ac6821a0abcbc54ba3b
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, ttraff.com, disguised as a research paper. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that this PDF is part of a link farm designed to redirect users to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

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=research+about+academic+performance+of+students+pdf In PDF document text
    • http://files.heartawakemindfulness.com/uploads/1/3/0/7/130738513/9142260.pdfIn PDF document text
    • http://files.risawechsler.com/uploads/1/3/1/4/131406412/37116e87f29.pdfIn PDF document text
    • http://files.northlandfloorlaying.co.nz/uploads/1/3/0/7/130775867/8409356.pdfIn PDF document text
    • http://files.cameronayres.com/uploads/1/3/0/7/130739996/gatazaro.pdfIn PDF document text
    • http://files.tigercamp432.org/uploads/1/3/1/4/131452988/pokewaxudasenomolus.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/1/0432/8413/6086/files/tapefosus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2158/3004/files/66296312652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4406/8773/files/winuzevazuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4986/8703/files/38532612786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/52321085417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7226/6138/files/97455315639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/23268542234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/zajiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6255/7856/files/fufosefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0319/1193/files/24120355882.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_off0000a928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA928 5392 bytes
SHA-256: 378ec7b5820d53ee7f4f875dd6223c59c10dd5f2fcaee816075d7f94e1eb3125
font_01_sfnt_off0000bb4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB4B 10324 bytes
SHA-256: 30d654cf748c993ce520dba499c22e7339d999339bf4e0137e7b465cba8a9777

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