Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ca2bd212f9c695a…

MALICIOUS

PDF

48.1 KB Created: 2020-08-19 12:58:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8753c17a651533d49cd4197cf9c42c1b SHA-1: dd90e7d168eed8afcad3275bb7055e20da3747f0 SHA-256: 8ca2bd212f9c695a69f1fb78f482de00a7aac2412b17cf085c9db43717207699
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the primary malicious URL. The combination of these factors strongly suggests a phishing or redirection attack designed to lead users to malicious content.

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=public+policy+cycle+pdf In PDF document text
    • http://files.eeutah.org/uploads/1/3/1/0/131070646/2044f2120e09.pdfIn PDF document text
    • http://files.greateventsrecording.com/uploads/1/3/1/4/131408465/finife.pdfIn PDF document text
    • http://files.csconstructionincorporated.com/uploads/1/3/1/8/131871650/jutipujemerabadu.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/1/0435/6934/8763/files/calculus_2_formulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3625/files/galaxy_s9_data_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49186839350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4645/8776/files/9015465430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7471/4790/files/21971504078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/neboburitezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4874/6651/files/murepevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3331/0870/files/16412525259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6862/4791/files/pronoun_reference_agreement_worksheet_for_grade_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/54678070890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.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_off00007d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3F 4908 bytes
SHA-256: 01177e42330c7fda0bb945dae063a93fe5766082f93dde9ec3105230948af912
font_01_sfnt_off00008dfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFD 10980 bytes
SHA-256: e3ace97f60d9f98bac342cba1d82e186e152a3ad4e715948b9e2d04ae60cc769

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