Malicious PDF — malware analysis report

Static analysis result for SHA-256 403ab6ab193ab25d…

MALICIOUS

PDF

40.3 KB Created: 2020-08-09 23:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a9e487b9b7a3e06eaa1ac25e8b51f6e SHA-1: 489cb98e7fd2aefbedd86fae8bae76e0caa81b80 SHA-256: 403ab6ab193ab25d204fefb1f74124b578f999f310a9e88a15603d287cca8f11
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=cartesian+coordinates+pdf'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and other Shopify-hosted PDF links. The primary intent appears to be redirecting the user 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.ru/pify?keyword=cartesian+coordinates+pdf In PDF document text
    • http://files.polymerall.shop/uploads/1/3/2/6/132695280/623752.pdfIn PDF document text
    • http://files.westashdesigns.com/uploads/1/3/1/3/131398479/mawavoban-bugowawax-lepireserov.pdfIn PDF document text
    • http://files.alissaellisphd.com/uploads/1/3/1/4/131452827/844207.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/1/0437/7162/5621/files/93312454854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9726/7112/files/dofewebuwijalifoxupotaxof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34597476450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5233/3206/files/45513940808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2685/8662/files/65877316192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/wijagifimoginalorivis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2880/6806/files/remove_hen_from_ps3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9817/7693/files/electric_normal_pokemon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3464/7460/files/bticino_interphone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6900/6236/files/dev_beats_down_low.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2557/files/aoc-_cv-_100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/rurugigul.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_off0000617f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617F 5024 bytes
SHA-256: 9d7839fba3e8ca6d69382584cd25a4edd769c73d0d61b8db167f97a85de364c9
font_01_sfnt_off0000729e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729E 9980 bytes
SHA-256: 2b44aea1f94faf154a00d6b4a32028487809336e88a2d8a0af8ea8ec45c6c2af

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