Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c07d7d037ca5da8…

MALICIOUS

PDF

41.8 KB Created: 2020-08-07 17:05:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e62521453239288c5dcc681592768ce SHA-1: c7e4fc43eaa4e968b9738512ab45bd510f2f19df SHA-256: 6c07d7d037ca5da8fd170279e405d6fda9648cb887df196b7f3834faf7fceea3
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many pointing to Shopify domains hosting other PDFs, and a primary redirector URL. The heuristic firings indicate this is likely part of an SEO link farm or a phishing campaign designed to lure users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=hongo+aspergillus+niger+pdf In PDF document text
    • http://files.teacherarvie.com/uploads/1/3/0/9/130970003/9915974.pdfIn PDF document text
    • http://files.fauxmesticgoddess.com/uploads/1/3/1/8/131856381/gevaxil.pdfIn PDF document text
    • http://files.pedscovid19registry.com/uploads/1/3/1/4/131406749/5079103.pdfIn PDF document text
    • http://files.covertsrustproofing.net/uploads/1/3/2/6/132681823/6772462.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/1/0433/7270/7990/files/63346118276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6730/2303/files/aquelarre_de_muecas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6598/3655/files/21821795174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21511039237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4062/0200/files/90684565511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/52025604743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5108/1118/files/giwazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6163/1384/files/agriseta_bursary_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/pirowavug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/rupanevas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7955/6504/files/cumulative_probability_distribution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3056/1447/files/roblox_aidez_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/40199329205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5189/1358/files/chirped_pulse_amplification.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_off0000659d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x659D 5172 bytes
SHA-256: 3d07599b8eda36abae8836d949f79c80a9e470c7b793fb48ad8d27416b66d823
font_01_sfnt_off00007746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7746 10272 bytes
SHA-256: 3c59d162d05ea7a6569062864cebfe4ecb590855f9b63183299ecb4b85535338

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