Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c1610d597b8adf2…

MALICIOUS

PDF

42.7 KB Created: 2020-08-21 18:09:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a4ea81d3061a33c654a423f858ef269c SHA-1: ad16136e9b697f6759d9b789b5e7f49416e34e84 SHA-256: 3c1610d597b8adf2b9e942517bc67e8a5faf27e04ea74b65cbe7bd117b8f240a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to a URL designed to lure users with the promise of free web hosting templates. This URL, 'https://ttraff.cc/pify?keyword=web+hosting+joomla+templates+free', is the primary indicator of malicious intent. The document also contains a large number of embedded links, many hosted on Shopify, which is indicative of a link farm used for SEO manipulation or to obscure the final malicious destination. The ML classifier also strongly flagged this PDF as malicious.

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=web+hosting+joomla+templates+free In PDF document text
    • http://files.greenaccountingservices.us/uploads/1/3/1/4/131454114/efd0ff7ce2a675.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/1/0434/0681/9493/files/60872143797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0870/5187/files/dojuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/nuwugotowodapawixavunofiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1992/6679/files/powotoviwizefume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5370/1525/files/zinilakotuduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6424/5925/files/17769612915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/27382993873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2560/3488/files/kejosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0476/2011/files/69699655673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8670/8893/files/91786299497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2384/2983/files/mv_boomerang_wanna_one_wapka.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 1

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_off00006740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6740 5544 bytes
SHA-256: 28f59eef3d44b52b1c00bb8f45c38a700eeea0117ce0d0be540c871719fb326d
font_01_sfnt_off000079fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FC 10624 bytes
SHA-256: dc7101151776daa3581c18db83d89ecdef62eb88ad368a27c6e24e7f262b1036

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