Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5182ab92b245761…

MALICIOUS

PDF

47.4 KB Created: 2020-08-04 15:25:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd955845e5f573ff8dee7e1f46c252f5 SHA-1: 5faa90e88bf221d9d1e12878951beada122424a7 SHA-256: d5182ab92b24576183df165a0f53f45fdb54059d0c2e73952b118987677ebd88
194 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. The primary malicious link, https://ttraff.ru/pify?keyword=medical+instrumentation+application+and+design+john+g+webster+pdf, is identified as a known malicious redirector. This suggests the document's purpose is to lure users into clicking these links, which then redirect to potentially malicious websites or phishing pages. No scripts were extracted from this sample.

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=medical+instrumentation+application+and+design+john+g+webster+pdf In PDF document text
    • http://files.olgaklosowski.com/uploads/1/3/2/6/132680808/9312124.pdfIn PDF document text
    • http://files.mindscapegallerystl.com/uploads/1/3/2/6/132683111/1329c.pdfIn PDF document text
    • http://files.banyinoodlestapas.com/uploads/1/3/1/6/131606666/debazezuragexima.pdfIn PDF document text
    • http://files.pt-mum.com/uploads/1/3/1/8/131856987/dotetafif.pdfIn PDF document text
    • http://files.beardensbackacre.com/uploads/1/3/0/9/130969728/5229850.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/1/0430/5901/9927/files/35675098140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6671/0433/files/vekokolufesokezevajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/ridelatano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69143450337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7260/9686/files/perip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/dubarry_of_ireland.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/80469770294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7485/4820/files/28902447582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8408/5416/files/6262971407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6472/8479/files/coastal_engineering_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/foboxeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6857/files/96551889559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3806/5308/files/janexiditopovupafufodub.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7887 5884 bytes
SHA-256: a0f434d373c85ea4944e4eb979944aa365ed10d2b3152cd80d16467fbcee74f3
font_01_sfnt_off00008c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7F 10348 bytes
SHA-256: 448db97111f5c620428fa2e3e512e0bbcf76a18b62bd1fa2bfaa92ea1e7bc42a