Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8335814c7f359c…

MALICIOUS

PDF

40.6 KB Created: 2020-08-20 14:19:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3da76e0bc197408b7b9bfe43722b57b6 SHA-1: 1fcfc6f619496c268bc400876b1e9280f114de4b SHA-256: 0e8335814c7f359c95279c640a7ad049224c1303dc8b9757a14958e44f406a1b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a URL that leads to a redirector, suggesting a phishing or malware distribution attempt. The presence of a link farm heuristic further indicates an attempt to manipulate search engine results for malicious purposes.

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.com/pify?keyword=borat+meme+template In PDF document text
    • http://files.lifeempoweredcoaching.com/uploads/1/3/1/6/131607407/9541392.pdfIn PDF document text
    • http://tidusub.tomhart.net/uploads/1/3/1/4/131438640/354b99b.pdfIn PDF document text
    • http://files.bensonmarshall.com/uploads/1/3/0/9/130969204/5090ef399335.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/1/0429/9754/7157/files/ansys_thermal_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6384/files/sopibotidolutojun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/mobuludakar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7519/9391/files/72581589169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7064/4631/files/64444117065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6488/5397/files/24685193271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/pufozanovuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/xagerevuzenurukova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5021/3274/files/hiv_and_aids_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9766/9278/files/pobup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1060/2661/files/implementing_a_hashtable_in_java.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_off00006377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6377 4836 bytes
SHA-256: 1daaecd09f93f3245f16ff881f800eeeb2a64aa259825fe02eea4799477d2565
font_01_sfnt_off000073c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C9 10064 bytes
SHA-256: 461d9c53e227fd34fa4e77a1b29f651bd1af593714eb126b80015595851beea8

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