Malicious PDF — malware analysis report

Static analysis result for SHA-256 0230ad612145773d…

MALICIOUS

PDF

44.1 KB Created: 2020-08-05 04:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2fc0a4da82873b6aa86c609ba627a92 SHA-1: 72066d2e3d9b49035ce67ea5efd048b148529853 SHA-256: 0230ad612145773da2e600169c6055bea13551df6b4071067e50f66047066600
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate a clear intent to lead users to harmful content. The document body itself contains obfuscated text and URLs, including a primary redirector URL, suggesting a phishing or scam 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/pify?keyword=the+human+brain+project+pdf In PDF document text
    • http://files.heavensentchihuahua.com/uploads/1/3/1/4/131413678/9801299.pdfIn PDF document text
    • http://files.leanwithluke.co.uk/uploads/1/3/1/4/131437930/tipuzusudizuze.pdfIn PDF document text
    • http://files.alexwanforatlanta.com/uploads/1/3/0/7/130738620/wasefiwujiro.pdfIn PDF document text
    • http://files.csdbyjessie.com/uploads/1/3/1/8/131856065/gekawi-sagubefi-dijelejaleza-jeruditu.pdfIn PDF document text
    • http://renada.well-estar.com/uploads/1/3/0/8/130874284/posuwejitipo_kojapekipex_sujuk.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/1/0439/7917/8142/files/might_not_the_weeknd_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1023/6321/files/80741178582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/24191318815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6067/4198/files/luguzijusufetezikupuxivut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/98578765806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/75608042885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8704/3496/files/54705168910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3907/2161/files/62780836327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6477/1238/files/90318285575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9140/9558/files/damubafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4764/8406/files/94477145961.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_off00006d81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D81 5352 bytes
SHA-256: 67801b4d021ed7f8da013099f33f12718f34700bf59ebb0f4510f5eb4ea6456d
font_01_sfnt_off00007f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F84 10524 bytes
SHA-256: 4952e2d4e8e8878a8d9affe28d7acaeb12baaefb8af01018623f50df5e57f92f

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