Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cf0f3be8e7af52b…

MALICIOUS

PDF

113.5 KB Created: 2020-08-09 08:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94cbf83cc5a05fe5bd148823994769df SHA-1: d0f58080e8291f2dece75fc2a4e7ebf11071c9a5 SHA-256: 6cf0f3be8e7af52b6c02408022de38012abaef757943f042263e40d339fff4ab
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to improve search engine rankings for PDF downloads. The primary redirector URL, 'https://ttraff.com/pify?keyword=filosofia+del+derecho+aristoteles+pdf', is flagged as malicious. This suggests a phishing or malware distribution scheme where users are lured by seemingly legitimate document titles to malicious infrastructure.

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=filosofia+del+derecho+aristoteles+pdf In PDF document text
    • http://bafezesom.adamsonguardian.com/uploads/1/3/1/3/131380213/momowe.pdfIn PDF document text
    • http://files.trevormlewis.com/uploads/1/3/1/6/131606128/88c5c9b.pdfIn PDF document text
    • http://files.ipoggioli.com/uploads/1/3/1/3/131383541/595891a48b.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/1/0433/9371/2286/files/raquitismo_neonatal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9146/7176/files/goluwoligit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4790/3654/files/54723055454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/sarifapezos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/12331768044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/sedarumunuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/todow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1777/files/python_read_first_line_of_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nejoxalivivurotuzepebibus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.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
🗂 Part of campaign: adamsonguardian.com 3 samples

Related samples 6

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_off000175bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x175BB 5196 bytes
SHA-256: 0a330b7801491c3d040a540295bffe6752bf592247a64a91759c1ba49a354cc7
font_01_sfnt_off00018765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18765 15772 bytes
SHA-256: 561c66f68a338cbab1b55f0312cbd57a86a1c91db3db3858c3cbb5c6e02f06d3

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