Malicious PDF — malware analysis report

Static analysis result for SHA-256 52c4351ca9b89432…

MALICIOUS

PDF

48.3 KB Created: 2020-08-08 08:05:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d79fb0700db0d95f68cd468357b209fb SHA-1: e89025b1f2ef03e0a8cff379bbba3b0d675f5d55 SHA-256: 52c4351ca9b894320d3fb4588b0487b52dcccbc3ed606e3abadf3e71b9a2b8bb
194 Risk Score

Malware Insights

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

The PDF contains a link disguised as a marriage biodata form, which redirects to a malicious URL. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic and the presence of numerous external links, many pointing to Shopify domains, suggest a link farm or redirection tactic. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the ttraff.com redirector.

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/wb?keyword=create%20biodata%20for%20marriage%20pdf In PDF document text
    • http://files.westerauchrawcroft.com/uploads/1/3/2/6/132695200/fufazapuzivibixabi.pdfIn PDF document text
    • http://lazede.eshandcrafted.com/uploads/1/3/1/3/131383314/fa0c77d9e0cfa.pdfIn PDF document text
    • http://files.rajima.net/uploads/1/3/0/7/130739155/1842404.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/1/0437/1090/6518/files/rodovoluzigugadolep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5400/files/delhi_apartment_ownership_act_1986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65107231385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9231/1206/files/64307202133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/43640684995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/vogijitokiruxomimemikor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2276/7512/files/metabolismo_de_la_hemoglobina_sintesis_y_degradacion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/51535471157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4840/1046/files/famous_books_and_authors_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/kowes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/vocalise_rachmaninoff_soprano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7962/3071/files/36000065731.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_off00007ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF0 5196 bytes
SHA-256: 066a617046d1dc23649db451303ce91973dfc27e6974b369ab7504aaef1d56eb
font_01_sfnt_off00009183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9183 10184 bytes
SHA-256: 9458181eea445daf5d602fa1c1153695f13f5cf7f13d23dbeed7e65e138e75ac

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