Malicious PDF — malware analysis report

Static analysis result for SHA-256 08c1ab1674e3bbe4…

MALICIOUS

PDF

42.0 KB Created: 2020-08-10 16:03:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec4257470bccdbd63e0a94d41c09d23c SHA-1: 6eaff359638acc5e7071a1c8e1984768e90ec579 SHA-256: 08c1ab1674e3bbe49b8a1f84b2e19fe0a9991876a7b10e321debb6dba0f2dc55
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a link farm designed to appear as a legitimate news paper download, but redirects to malicious infrastructure at ttraff.com. The ML classifier strongly indicated maliciousness, and multiple heuristics identified the document as a redirector and link farm. The embedded URLs are part of a SEO-based phishing scheme.

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=english+news+paper+pdf+download+today In PDF document text
    • http://files.joysartstudio.com/uploads/1/3/2/7/132740270/roletez-kipekizajidivuf-tediwixok-bibub.pdfIn PDF document text
    • http://files.larryssportsexchange.com/uploads/1/3/0/8/130874128/folerezome.pdfIn PDF document text
    • http://files.pacificcoastvolleyballclub.com/uploads/1/3/2/3/132303407/pajavu.pdfIn PDF document text
    • http://files.tanditech.com/uploads/1/3/1/6/131637374/bexovejadatupamofidi.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/1/0435/8320/9631/files/14049492489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6046/0701/files/38445767442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70277109097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0067/3950/files/sine_qua_non_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/31630377613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riginijulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/83904870965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1348/0343/files/50642901117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0339/1645/files/public_relations_copy_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/38667058940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4665/files/pre_algebra_word_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6472/8479/files/work_life_balance_hr_project.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/jenowebipidisig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4501/9045/files/sbi_credit_card_statement_password.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 8

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_off000065d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D3 5452 bytes
SHA-256: ff18f41693bb09555471e1858cc7f1c758c7fbb1812299b14fdcee238720d6ad
font_01_sfnt_off0000786d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x786D 10116 bytes
SHA-256: 81ffd402f5a87301d39aaa744830a938cd449a69a21096cc7320428a24c53d93

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