Malicious PDF — malware analysis report

Static analysis result for SHA-256 d426f127788a108a…

MALICIOUS

PDF

65.2 KB Created: 2020-07-27 19:31:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 510f4d414f143a523af066562b8f74ec SHA-1: 0f8c1757d56d37a60ab4995d53218eadf46d65e8 SHA-256: d426f127788a108ad7717b715662f08642c8cbdb7f5a20e1186f09432b86b98c
194 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with many links pointing to Shopify domains, likely for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is disguised as a Doberman pinscher anatomy guide. This suggests the document is designed to redirect users to malicious content.

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=doberman+pinscher+coat+color+and+anatomy+guide In PDF document text
    • http://files.jessicalunn.com/uploads/1/3/1/4/131438499/6499551.pdfIn PDF document text
    • http://files.chefdavidbmorrison.com/uploads/1/3/1/3/131379402/235deb1fd.pdfIn PDF document text
    • http://files.graceforeachmoment.com/uploads/1/3/0/7/130739101/ravifiliwirolem-jaronalinu.pdfIn PDF document text
    • http://files.garimaahuja.com/uploads/1/3/1/6/131636651/d42dbb6.pdfIn PDF document text
    • http://files.sweetcitymicros.com/uploads/1/3/2/6/132695668/wifizixa_mewerabixe_bukoradikusas.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/1/0433/6189/4565/files/xemuxosigom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7506/6273/files/74293872942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6651/files/36431173849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9403/2040/files/gipodilutigutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9735/7472/files/5932472627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1149/6343/files/84569937463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4520/files/nozosuwozizoser.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5716/8027/files/sorejotefelakudinuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5803/6889/files/mafitegujaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/65801782318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/kimemofosok.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_off0000c135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC135 5608 bytes
SHA-256: 0ed1ee9a137b09465cb91423ed250a8292523c0def55c6931581a969043054fc
font_01_sfnt_off0000d415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD415 10156 bytes
SHA-256: d68b4f964aefdf4b726df1e82bdcf6aba1b0faea1501defa8e7bc93d428aba9b

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