Malicious PDF — malware analysis report

Static analysis result for SHA-256 178ce5083aa67993…

MALICIOUS

PDF

33.4 KB Created: 2020-08-14 10:59:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fdd1d75f588c28d74c8e4d0e4b6e6db3 SHA-1: 5e0dc2d3b120cdc8e6760875a92cc5ab626f3bed SHA-256: 178ce5083aa6799385703cda65d999c8ef699190b3fcaf06e934ee32d986748c
194 Risk Score

Malware Insights

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

This PDF document acts as a lure, presenting itself as "Boilers notes pdf" to trick users into downloading other PDF files. It contains numerous links to a redirector infrastructure, specifically `https://ttraff.ru/wb?keyword=boilers%20notes%20pdf`, which is flagged as malicious. The document body itself is heavily obfuscated but contains references to the malicious URL and other Shopify-hosted PDF links, suggesting a link farm or phishing 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.ru/wb?keyword=boilers%20notes%20pdf In PDF document text
    • http://files.madisomeone.com/uploads/1/3/1/0/131070604/b71c838.pdfIn PDF document text
    • http://files.jacquelynharris.com/uploads/1/3/1/3/131380539/9165943.pdfIn PDF document text
    • http://files.amorehairdesign.com/uploads/1/3/1/8/131857117/3506377.pdfIn PDF document text
    • http://mulal.timeundertensionwellness.com/uploads/1/3/1/4/131482952/wosina-dogukovomu.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/1/0431/4988/5606/files/long_armed_squid_creature_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8313/7178/files/48370417682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/pitorigazobojisokezike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/espn_live_nfl_scoring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2811/9706/files/foburakezakamivoretagug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1093/1358/files/didaxakotinevebud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9942/files/bugegipulexizopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4074/1275/files/sjogren_s_syndrome_pathogenesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4045/4294/files/antecedentes_personales_patologicos_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5502/9141/files/37807526529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/diripisizerixepaz.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_off0000478c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x478C 4876 bytes
SHA-256: 547349fcad50dc1ad72fd6209b25cf8591b4f9be0d918f7ca1518396cb87dedb
font_01_sfnt_off00005830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5830 9660 bytes
SHA-256: cf27de758effa7279b9de845f66541ff323231f2b73e29184e2d99a4b39f8f9b

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