Malicious PDF — malware analysis report

Static analysis result for SHA-256 cde4e5c1ee47ce6a…

MALICIOUS

PDF

41.7 KB Created: 2020-08-26 08:44:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10f0bc68e5994a00662f103f1873caf7 SHA-1: 4766b42860e61ee70ee36abcd1273b3290917e4e SHA-256: cde4e5c1ee47ce6a9967e1e623ee35ce302474175043b80d0c9477c55f810b1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify, designed to appear as legitimate documents. The primary malicious URL is 'https://ttraff.cc/pify?keyword=estructura+del+sistema+juridico+mexi', which is likely used to redirect users to a malicious site. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=estructura+del+sistema+juridico+mexi In PDF document text
    • http://zamiwabo.tipsyglasswinery.com/uploads/1/3/2/7/132740829/4b7cb0f7ddc829a.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/1/0439/8442/1022/files/84802010379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4550/3655/files/physical_chemistry_atkins_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3637/6214/files/xexibipeguwurozukosigunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5655/2343/files/halimbawa_ng_adyenda_tagalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3538/5243/files/cambridge_advanced_learner_s_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/plastic_deformation_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4188/2265/files/zikokoguxozidatiladopoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8289/0918/files/20379913495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6660/6247/files/cognates_worksheet_answers.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_off00006023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6023 5184 bytes
SHA-256: a6980de3001c57b5813398e3b2fdb196994271ee6425d7ab3f393399079e2253
font_01_sfnt_off000071ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AE 12520 bytes
SHA-256: c3f4fe1b1fa9523184ff92508890eb58e793ea6845212a5f58e723b5039d9bea

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