Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f71d3c046edfab2…

MALICIOUS

PDF

35.3 KB Created: 2020-08-15 01:27:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45979b63d6f61cbe113b1a30d5d8b821 SHA-1: 9c0401f5cb44337f027a44c058996e6f5b505174 SHA-256: 6f71d3c046edfab213bb8f16a4b2741a57c688fab4f12bd6d4cbe3f8b93ee5ce
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though garbled, includes text related to 'tracing worksheets' and the malicious URL, suggesting a lure for users to download potentially harmful content. The presence of a link farm and redirector indicates an attempt to distribute malware or phish for information.

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=letter+d+tracing+worksheets+for+preschoolers In PDF document text
    • http://xerazonen.persnicketyjane.com/uploads/1/3/0/7/130775734/komexaxipanavimaw.pdfIn PDF document text
    • http://kimubafa.prestigelandscapesupply.com/uploads/1/3/1/4/131452903/begujimowosoguputog.pdfIn PDF document text
    • http://files.eco-literate.com/uploads/1/3/2/7/132712306/8081490.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/1/0429/9925/1093/files/keguroxurejumikibifamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3480/4375/files/93803275988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/78360933511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8638/1210/files/29881376432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/1st_person_2nd_person_3rd_person.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8909/1998/files/books_of_the_bible_timeline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4647/5675/files/rodixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0996/4192/files/yaseen_shareef_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/wajoletalave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/six_sigma_handbook.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 1

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_off00004afb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AFB 5516 bytes
SHA-256: 568a3778a89c9e1698ffc34265c773ec1829f16fa776df4eaa208c3f4393a553
font_01_sfnt_off00005dd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD2 10080 bytes
SHA-256: 0345b6c208a1c4d4eedfcbf922042a83c29a839318b0ce58a67fb7e6d41cdd0d

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