Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d190bc76ec0187…

MALICIOUS

PDF

62.8 KB Created: 2020-08-12 17:11:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6393861f6f5e7bf9c30da726155a113f SHA-1: 3bb1435f549b41e21c47f72b919a75a5092c9ccf SHA-256: 89d190bc76ec0187d7f4c2a21eaa2ecaa9518d4435b6ef8dfee246e7b40e6d99
194 Risk Score

Malware Insights

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

The PDF file contains a lure related to invoices and payments, directing users to click on a link. This link, 'https://ttraff.ru/wb?keyword=bookkeeping%20and%20accounts%20for%20beginners%20pdf', is identified as a malicious redirector. The document also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm for SEO poisoning or distribution. No scripts were extracted from this sample.

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=bookkeeping%20and%20accounts%20for%20beginners%20pdf In PDF document text
    • http://files.suzannewittfoley.com/uploads/1/3/0/7/130739069/6a61479a4.pdfIn PDF document text
    • http://xuloda.vancouvermermaid.ca/uploads/1/3/2/6/132681504/1605792.pdfIn PDF document text
    • http://mosofu.litchfieldmobilevet.com/uploads/1/3/1/6/131637016/7fca2.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/1/0431/5188/4445/files/69453093866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7618/9346/files/gavupejegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8025/3593/files/85527211136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6337/8081/files/kiwufugidozilege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3459/7784/files/nexelusifapuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/fapojafotopumanokufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6899/7286/files/automotive_technology_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7520/7322/files/mepiganupire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8493/0462/files/rifuvadegam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/zufamugibagokawijam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0209/9873/files/peripheral_smear_preparation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8407/9523/files/40498367582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0717/9941/files/juzisupebujakawuvanisag.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 4

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_off0000b7ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7CA 5544 bytes
SHA-256: 3e562b4b8e834a6a7ee3d6d513d48a819b14fc60b7734609fee123a7575547fe
font_01_sfnt_off0000cab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB1 10248 bytes
SHA-256: 218cbecb08b0df4b9524a920c4ebfd1b857f2bca4ea1e4a1a0d8096afbb62552

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