Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee4e74ceccfd06b…

MALICIOUS

PDF

50.1 KB Created: 2020-08-11 07:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8bdbcdf7aa2e3aa162a26359a43d3f05 SHA-1: a45318c6ef1f4b99855186fc83d1335480f27330 SHA-256: 5ee4e74ceccfd06b53142490d9dec259eeaa08e6bdd8f68221047ec2d27b5309
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to redirector infrastructure designed to obscure the final destination. The heuristic firings indicate that these links are part of an SEO link farm, attempting to lure users with search terms like 'Nikon d7000 service manual pdf'. The primary redirector URL is https://ttraff.cc/wb?keyword=nikon%20d7000%20service%20manual%20pdf, which likely leads to the download of further malicious content. No scripts were extracted, but the overall structure and link farm suggest a phishing or malware distribution attempt.

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/wb?keyword=nikon%20d7000%20service%20manual%20pdf In PDF document text
    • http://files.sitemdowncowboychurch.com/uploads/1/3/1/4/131452958/wuzasovoxupujewaver.pdfIn PDF document text
    • http://files.artworksgalleryco-op.com/uploads/1/3/0/8/130874031/8468673821b.pdfIn PDF document text
    • http://files.mydhfastmandat.com/uploads/1/3/0/7/130738801/6e8a6d935b5.pdfIn PDF document text
    • http://files.kissinkates.com/uploads/1/3/0/7/130775220/f9367c7f1.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/1/0434/8716/6628/files/xipavavotosujub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3264/8602/files/71228516694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2047/6828/files/saganadefenulikalubeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/votapuroresiger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/julimulofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/83918679079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/luguwinenerabixutitumik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/applicant_letter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5962/5627/files/60204963771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8638/4023/files/academic_writing_and_research_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1938/5504/files/85424135174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9898/7926/files/read_file_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/26602334484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7938/5756/files/bizogabopeluninusad.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_off00008473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8473 5616 bytes
SHA-256: 38efa7bb026208987eef1eaf9841f1016399d57d3350d6d1ac4ee9247ab3637d
font_01_sfnt_off0000977b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x977B 10516 bytes
SHA-256: 5ba0674645b9f60d6de3a2a32ed0dabd82217451ae4151ad3fed213efa87acad