Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb0b9c9e1a33bbc…

MALICIOUS

PDF

38.3 KB Created: 2020-08-22 15:39:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 051fcc4fcf90e6a304745da45694d397 SHA-1: 3d8a73d907588c50b300d4f0ceb1f6b8ba40ff5d SHA-256: 3eb0b9c9e1a33bbc0015afd1c6c6caef050da2272eb5baae7e11f3711e13ce90
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL 'https://ttraff.ru/pify?keyword=dr+denim+size+guide' is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify PDF links, suggesting a content-scraping or link-farming operation.

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=dr+denim+size+guide In PDF document text
    • http://files.langsidechurch.org/uploads/1/3/2/3/132303061/3cc50cd3e1.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/1/0434/2431/7596/files/why_is_my_booklet_printing_upside_down.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0951/5425/files/silugiduvoruwenubuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/makalah_patent_ductus_arteriosus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1371/6643/files/86892104095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3862/9275/files/48805564815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/49951440068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56966684837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/96480408246.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 5

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_off000057a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57A0 4952 bytes
SHA-256: eef49968505a1e0eb5439f453d21b14a0d8bdbe2a0bd2dfe6a9e74cbdf17b768
font_01_sfnt_off00006863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6863 10936 bytes
SHA-256: 92e2844a27c17847b3ef163dc688108a79b6aec65f748cfc8db85c41a6313c7d

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