Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ddd71b78b15cb2d…

MALICIOUS

PDF

40.8 KB Created: 2020-08-23 16:17:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2448061e87214348cea440b6488ba938 SHA-1: 1a851b3159d4ab83e5cd0971cb24ea312a03ab64 SHA-256: 2ddd71b78b15cb2d049a8918e8e28329fd1d68f7efd36ded695947834a4df88e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-Override

The PDF file contains a large number of embedded links, many of which point to external domains. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.com). The document body, though heavily obfuscated, also contains URLs that appear to be part of a link farm strategy. This suggests the primary purpose is to redirect users to malicious or unwanted content, rather than delivering a direct payload within the PDF itself.

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=barska+1-+4x28+manual In PDF document text
    • http://files.henrymaynardhistory.com/uploads/1/3/1/8/131857114/9935156.pdfIn PDF document text
    • http://files.mccallinnovations.com/uploads/1/3/2/7/132741169/830524.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/1/0451/3798/5690/files/63882187297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8269/4312/files/zewapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93336639176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44240048578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1829/7245/files/78802247649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/forager_starter_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/2000/files/revilodan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/69195623992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7214/4038/files/99119438692.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 2

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_off00005a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A42 5512 bytes
SHA-256: 387c5054f98ddb18780cf45e52033974caced10ce30ae447718167f2cab5b761
font_01_sfnt_off00006cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFA 13388 bytes
SHA-256: d7c9c29428e7e937bd0f7e03623e0dd83d28e297d8c9e92cfcad8375a14be800

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