Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec56150063742360…

MALICIOUS

PDF

41.9 KB Created: 2020-08-16 12:46:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76018b8855bbb07c0942435e73461d38 SHA-1: dd1986449e17033d5fe8a603885f944567b685c1 SHA-256: ec5615006374236021b1e80aa1af156279f81dc806e26f7aa548e2c3f859ab74
194 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of embedded links, suggesting a link farm or phishing lure. The primary malicious URL identified is ttraff.ru, which is likely used to redirect users to further malicious content. The document body contains garbled text but also includes the primary malicious URL and several other URLs hosted on cdn.shopify.com, some of which are confirmed benign.

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/wb?keyword=videos%20de%20manualidades%20para%20halloween%20faciles In PDF document text
    • http://files.mainstreetkidsclub.com/uploads/1/3/0/7/130738889/duwarogidogotoligunu.pdfIn PDF document text
    • http://files.eframesuk.com/uploads/1/3/0/8/130814124/8742938.pdfIn PDF document text
    • http://files.resiliencegrowshere.org/uploads/1/3/0/7/130738620/1222310.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/1/0427/7154/6279/files/vuvoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1179/2286/files/annihilation_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1833/6925/files/xovipekixutigowuzomixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4037/2896/files/becoming_supernatural_dispenza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/rogoligarezagexuxusosazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/23207134664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2680/files/84343733064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/fancy_drake_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5235/files/1282862649.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_off000062ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BA 5452 bytes
SHA-256: 68f329fb69993c0fbc5ff345c069180a950a33e19131137a14322c46700a21eb
font_01_sfnt_off00007529.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7529 10844 bytes
SHA-256: df174c28146045b18a37f85e3ba36d0baac22630a6e325fa24a91f30b90f3b8c

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