Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e8bac4e40735c8c…

MALICIOUS

PDF

34.3 KB Created: 2020-08-05 07:40:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67e5b354c22e4de9bba9e30090abbe65 SHA-1: 435408f3f5a6e5e4ff0c48bd091a735e0d09c05c SHA-256: 7e8bac4e40735c8cde316ac7bc18ac3825b87fa72658f7b4adbf6e892c7ed89f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.cc). The redirector then points to various PDF files hosted on Shopify and other domains, suggesting a link farm designed to distribute content or phish users. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms a malicious intent to direct users to potentially harmful 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=ishakamusa+barashango+pdf In PDF document text
    • http://files.kewosteopath.co.uk/uploads/1/3/0/8/130814874/8925865.pdfIn PDF document text
    • http://files.inspirlearn.com/uploads/1/3/2/6/132695749/ff7864f0.pdfIn PDF document text
    • http://files.cloverfieldranch.com/uploads/1/3/2/6/132695571/2574601.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/1/0430/7792/7063/files/23693338100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2036/7510/files/fozurawaralekebirito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/33381425037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4040/6684/files/95693859296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/bupidilinorer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3074/8072/files/38779492821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0455/1590/files/ketokopazoradopolanotep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/pepifixarinamofavifoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3998/0711/files/ego-_t_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/nuxaropuxugonowiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5687/3128/files/99695246994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/miwugif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/kepuzudalasovijiwinamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9522/8565/files/wodoguwu.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 2

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_off00004875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4875 5564 bytes
SHA-256: 1af9312cdfb306ba3db10b01bb59631fbdc909022dd0590d0a8b36e78bed8e69
font_01_sfnt_off00005b32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B32 9836 bytes
SHA-256: 30bedb32da09b168d1d90bc72e88826c2b420d5f58848d6c349ad0969387afb2

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