Malicious PDF — malware analysis report

Static analysis result for SHA-256 86b8455a0519ee45…

MALICIOUS

PDF

43.8 KB Created: 2020-08-20 10:30:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58b86edf5e18d77d355cc05faea3b77d SHA-1: 37ee6aa17769a114e2b839e24aff6f4c5c71bf9d SHA-256: 86b8455a0519ee45ea4276621296928bc728ecc4c93b047d06c3c714ac7168f1
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'fluid warmer manual'. The presence of a malicious redirector and a large number of external links suggests an attempt to drive traffic to potentially harmful sites, likely for phishing or malware distribution.

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=enflow+fluid+warmer+manual In PDF document text
    • http://files.noon2moon.com/uploads/1/3/1/8/131871535/733583.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/1/0437/6644/8277/files/pabaturogulivevasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6839/1591/files/61723829972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/nilelijazaxuzukuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2197/1104/files/ancient_greek_etymological_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/54915190082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1915/8183/files/85613644665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/resonunulesuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7131/5876/files/tifepukuvesanafabopodetil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6893/2767/files/69134822316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wojilezufaguxulidumusad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3572/8794/files/gegulamamawanudakijaleb.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 3

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_off00005fe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE6 4924 bytes
SHA-256: 166557522925cd85024897f556fe66669f9ec4b7df6fb934cd41ef2179a94f12
font_01_sfnt_off000070a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A2 16236 bytes
SHA-256: 5ce214fe3b24bffb8d1822598079db57fc7b46fffc82fb928f218758591568db

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