Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0669a37405e0fc2…

MALICIOUS

PDF

39.4 KB Created: 2020-08-16 23:23:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a7e65ea3e9bed4ce2119abeb51c7113 SHA-1: f9961a3588be89b0367bfe4242b972b1d4d81cd1 SHA-256: c0669a37405e0fc224007a054531aabd77efe2c492a05dd3c7a2b6b6283fc870
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.com/pify?keyword=aluminum+trailer+siding+sheets. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify, suggesting a content-luring or SEO-based distribution tactic. No scripts were extracted, limiting the analysis to the PDF's redirection capabilities.

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=aluminum+trailer+siding+sheets In PDF document text
    • http://files.adventurefictionforever.com/uploads/1/3/2/6/132681891/6897209.pdfIn PDF document text
    • http://files.thejojodrops.com/uploads/1/3/1/3/131381241/2b2612af3ec0.pdfIn PDF document text
    • http://zemufivek.pinkandgreenstyle.com/uploads/1/3/1/3/131380600/wupufiponu.pdfIn PDF document text
    • http://files.meridianbodycare.com/uploads/1/3/1/8/131857193/6976761.pdfIn PDF document text
    • http://fudejax.lauraloescher.com/uploads/1/3/1/6/131636655/wulevatebogib.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/1/0427/7128/4135/files/dinisewaxakade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3929/1554/files/godowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5675/files/adjectives_to_describe_a_person_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/xurufarofuvugasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/95585622933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/2020_kenya_census_job_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3964/6108/files/99771239579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8605/3527/files/32231331403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3689/1544/files/jokutudewijugiruxujepevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8656/0936/files/garivij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/telecharger_je_me_debrouille_en_anglais_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5528/4373/files/5291453959.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_off00005d17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D17 5228 bytes
SHA-256: b9c17af62b0de16f8803483dbba5a98abba8ded3764867d4bf046f41c0e1255c
font_01_sfnt_off00006e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9D 9996 bytes
SHA-256: 41a8411e2fe4a6cb7b62d3aca36ba01cf1477803c5b99e847a25556d23c7e15c

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