Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca3b5beaa7b52cff…

MALICIOUS

PDF

44.4 KB Created: 2020-08-10 17:11:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ba9da59f7fc32260ce258331d41fa4b SHA-1: 0eac31ab52e9b2b4188d6bbb7cb44f4f347fd23f SHA-256: ca3b5beaa7b52cffa68e58182e3402ad397f6db2eb89a28c25cf9f0f0f28b71f
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=anatomie+systeme+digestif+pdf'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many of which are benign Shopify links but one points to a potentially malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the primary intent is to redirect the user to this malicious site.

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=anatomie+systeme+digestif+pdf In PDF document text
    • http://files.americanredcrosskadena.com/uploads/1/3/0/8/130815095/zefuf-segajeze.pdfIn PDF document text
    • http://files.yourkentuckydj.com/uploads/1/3/1/3/131379833/5315810.pdfIn PDF document text
    • http://files.boquetenewcomers.com/uploads/1/3/2/7/132710632/8239630.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/1/0430/6694/9799/files/power_of_attorney_colorado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1728/0408/files/94472671133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2371/8805/files/ccat_test_grade_3_free_sample_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3062/5947/files/39586731243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/how_to_open._gz_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/holographic_universe_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8962/3208/files/29490002609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9663/7597/files/consumer_behaviour_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/lugolixedowulavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/xitubepukibozotazova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4665/files/xokovev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3070/7356/files/48502575888.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 4

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_off00006af3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF3 5324 bytes
SHA-256: a2009a000c3e72341a700f34d7b8b4dc6b02421be5d2f1870aa37b70054c29c5
font_01_sfnt_off00007d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0E 12304 bytes
SHA-256: de5eddf34208006b1594076017089d76dcea3731634ba7b7d3224f7247c49903

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