Malicious PDF — malware analysis report

Static analysis result for SHA-256 045923146f6cd668…

MALICIOUS

PDF

40.2 KB Created: 2020-08-07 11:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 041a06afee9d637d4d268f7f560f9bf9 SHA-1: 04c8b435a715addc90f3a3a5a09ddd7497432106 SHA-256: 045923146f6cd6684aa64c4a9d285bf939600d23b0470611fb0102edb42a65df
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, many of which point to SEO-optimized PDF files hosted on Shopify. One prominent link, disguised as a 'favourite food worksheet', redirects to a known malicious infrastructure at 'https://ttraff.ru/wb?keyword=favourite%20food%20worksheet'. This suggests a phishing or scam attempt using a link farm to distribute malicious content or redirect users to malicious sites.

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=favourite%20food%20worksheet In PDF document text
    • http://siwexak.rachelswhimsicalart.com/uploads/1/3/0/7/130739704/texonilukoxaxavukidu.pdfIn PDF document text
    • http://files.zendixie.com/uploads/1/3/0/8/130815213/xipasexonup.pdfIn PDF document text
    • http://rinovof.bendigoartsociety.org/uploads/1/3/1/4/131437462/tukaxapofit.pdfIn PDF document text
    • http://files.pottingwithpotter.com/uploads/1/3/0/7/130775249/susetevik.pdfIn PDF document text
    • http://files.nayloreagles.com/uploads/1/3/0/8/130813796/nokex.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/1/0428/3973/6487/files/lao_shan_lung.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0160/9366/files/70054247755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8439/8236/files/vujamesokonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7263/4533/files/webobesipopudowobikafab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7211/9193/files/bemawinarenozadik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0015/8629/files/25734428306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8845/3533/files/rarafanojulozikovoxunosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6081/2183/files/nims_100b_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/xudijenufobel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1524/1891/files/26274765561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8604/4570/files/metas.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_off00006134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6134 5132 bytes
SHA-256: 1b0af0bf4a95f1475c71a1109002643238a77d97cdecd133d6366a11fabaeb85
font_01_sfnt_off000072c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C3 9740 bytes
SHA-256: 9e248bcb2438768e1dc62ab10c59185a439a8ee2256371712a738cbd506b527b

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