Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfa862b7759fe315…

MALICIOUS

PDF

45.2 KB Created: 2020-08-07 18:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76ae45ead12b5afe553ab2e6c9fdae02 SHA-1: e9019b5da5b4c0ed9158e586f416185f111073ea SHA-256: bfa862b7759fe3156e7c2cb2033e7517b1e71dac7e6f359bcc11597c4f26bfb3
194 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to benign Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains the text 'Water pollution journal articles pdf' and the malicious URL, suggesting a lure to trick users into visiting the redirector. The presence of numerous links indicates a link farm or SEO poisoning attempt to drive traffic to malicious infrastructure.

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=water+pollution+journal+articles+pdf In PDF document text
    • http://files.d4featherston.co.nz/uploads/1/3/1/6/131636947/ritanororo.pdfIn PDF document text
    • http://files.seeingsilence.com/uploads/1/3/1/4/131407010/ccfb43e727f.pdfIn PDF document text
    • http://files.torydesign.com/uploads/1/3/0/7/130775462/jigola_lelezugazogog.pdfIn PDF document text
    • http://bobar.ikaahukarchaeologyproject.com/uploads/1/3/0/8/130874431/gibovore_zuvowo.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/1/0427/9762/9596/files/lunujumokuxujebipejaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/76566424116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6609/5781/files/purexerixivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9988/9571/files/wijit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/6960433764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/niwakozekixitiwobukuduti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1451/9966/files/tumelagaferuvujew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9829/9813/files/74482547339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6044/5855/files/69346994147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/loews_hotels_careers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4326/6458/files/mepogigada.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 4

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_off00006b75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B75 5236 bytes
SHA-256: 7b47f6beb6e9a7d545ad149824861ee283683721ffdc0da0a543e0b6d2f8dd97
font_01_sfnt_off00007d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D65 13448 bytes
SHA-256: fb28195a9765643ce95f0e8e0284d5408d515682f1f9e819a0431425b6d1cb88

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