Malicious PDF — malware analysis report

Static analysis result for SHA-256 3380df312a40126f…

MALICIOUS

PDF

42.5 KB Created: 2020-09-19 13:26:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1460534870d06fbe3b46970994312ed SHA-1: 2b794d26b0b9c59d40e0402069eb273899096d00 SHA-256: 3380df312a40126f9a89308115c7ee9a7fa3d1056ef96d1338b3f88dd3af7218
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by a machine learning classifier and contains a high number of external links, many pointing to Shopify domains but also including a critical redirector link to 'ttraff.link'. This suggests a link farm or SEO poisoning tactic to distribute malicious content. The document body contains garbled text and what appears to be metadata from wkhtmltopdf, indicating it was likely programmatically generated rather than user-authored 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.link/wix?keyword=leapfrog+computer+tablet In PDF document text
    • http://newofoben.valecreekrodworks.com/uploads/1/3/1/4/131438437/ecf31d9048581c4.pdfIn PDF document text
    • http://fixileset.newhampshirewoodworks.com/uploads/1/3/1/3/131398591/veturivez_fibojogi_rupizerote_belogu.pdfIn PDF document text
    • http://files.thefreckledpeddler.com/uploads/1/3/1/3/131378990/didavesubu-dujoz-zinugo.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/1/0433/0065/1158/files/5047726934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/24590202496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/fallout_76_fusion_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/capacitance_of_parallel_plate_capacitor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2856/files/sajogonegevosawabif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1509/3920/files/football_manager_2015_training_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8087/4139/files/abakazi_twalaba_by_mariam_ndagire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/marifurozijuzaledenikegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4347/1008/files/81811512429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7872/7318/files/nolusupakuxepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6791/5936/files/62286846782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/9220431458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9699/8048/files/37719919468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0714/7166/files/50812953551.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 3

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_off0000671d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671D 5236 bytes
SHA-256: eec571836917f0af9e053bc593a0111b91a90cb3e0aa590d213ccddcf1f60b32
font_01_sfnt_off000078e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E1 10576 bytes
SHA-256: a3dbb29e718471f65f67f29a00a2de0acf6a5419ced7ec56355cccb9e788aba6

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