Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba3125d9b93c9662…

MALICIOUS

PDF

49.1 KB Created: 2020-09-16 16:38:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b47641c69fc9c04b5180f8fbb5f56dd SHA-1: a6f149edd8710f42bfd2dfa631623e35b0564303 SHA-256: ba3125d9b93c966234d9066ef302cac732b3ef95f672200ee1fd0bc9a369b926
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical redirector link to 'ttraff.club' which is associated with malicious activity. The document body, though heavily obfuscated, contains the same malicious URL, suggesting it's intended to lure the user into clicking it. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm strategy for SEO poisoning or distributing further payloads.

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.club/wix?keyword=british+home+stores+home In PDF document text
    • http://files.wce5th.com/uploads/1/3/1/6/131607054/wojubofulezubuk.pdfIn PDF document text
    • http://files.oe-suppliers.org/uploads/1/3/1/1/131163667/voxemisofomodaz-ririlinagegize-digozokose.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/1/0440/1309/3029/files/proyectos_de_arquitectura_sostenible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1464/2069/files/dollar_tree_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/78932246219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1561/9239/files/macquarie_foundation_annual_report.pdfIn PDF document text
    • https://b371eb4b-5f51-4e4a-be79-89b896354690.filesusr.com/ugd/145364_3342c36e248a4f4fa087accd834e7adc.pdf?index=trueIn PDF document text
    • https://0d512472-f808-11ea-a328-fc4dd43d38a6.filesusr.com/ugd/017c44_9160600306b848a2a2db36b99484c8b8.pdf?index=trueIn PDF document text
    • https://41fc957c-6dd1-421d-be52-b2d41edd1c53.filesusr.com/ugd/3bcfef_10ea0383d6004426b98617308b507a7f.pdf?index=trueIn PDF document text
    • https://4141477d-4716-46a4-9811-c1b13a48f416.filesusr.com/ugd/f1780b_c73f6cbe0fef492ea4b1a95f1a055b15.pdf?index=trueIn PDF document text
    • https://fa5801b5-de68-45c9-8e8e-732a82cd1967.filesusr.com/ugd/2c8d66_7921da934e13465cb7f8bbd80eefe14b.pdf?index=trueIn PDF document text
    • https://4d85019c-1b54-495b-a99d-e5e1b6d447f7.filesusr.com/ugd/cc3ca9_50dbaaf6e4104e17a8ceb000e1d2eeaf.pdf?index=trueIn PDF document text
    • https://7a313d92-096c-423a-af0a-19791eeb4202.filesusr.com/ugd/c83fdb_cb042ad11d1a468785e236635d6994e0.pdf?index=trueIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8459 4732 bytes
SHA-256: 9426ab72d669922bcf8ff18fe80d7c98af7cb4e643f53aa50930de5254b6daf8
font_01_sfnt_off00009448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9448 10428 bytes
SHA-256: e1f85cadcc95a3b19a4a9aa89ee79d8d7c00353f27d74c20811ace1143e4dbd8