Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b94358a07f7689f…

MALICIOUS

PDF

38.3 KB Created: 2020-08-14 19:41:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57b9e10601e3f51dfad2f3b83d47dc68 SHA-1: 6474a487da4135e387e5b3efb6bc36bb12ed2ef0 SHA-256: 8b94358a07f7689f0e532d46452ad6e4cedafaa5b76eb42383543948b97e02a5
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to a crossword puzzle and the malicious URL, suggesting a lure to trick users into clicking the link. The heuristic firings confirm the presence of a malicious redirector and a link farm, indicating an attempt to distribute malicious content.

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.com/pify?keyword=melodic+tune+crossword+answer In PDF document text
    • http://files.essentialdance.co.uk/uploads/1/3/1/3/131379113/6b8c67ae.pdfIn PDF document text
    • http://files.800steps.com/uploads/1/3/0/8/130813966/9495548.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3304/files/gabiburivesepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/fubarasufefomojorijufajul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8953/files/ncert_physics_textbook_class_11_part_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6495/0946/files/molazewokenifijakavuxuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5300/files/37615317580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8086/6197/files/47442010444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6819160869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6469/files/dabamarutonurug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0644/3176/files/auscultation_skills_breath_heart_sounds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9717/7768/files/9672550522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7015/1061/files/79384294452.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B39 4912 bytes
SHA-256: 24b7d681e7cbf2c4fd74168d5a20bcf1be4ddd82c22c95279722a4ca22a4737b
font_01_sfnt_off00005c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C04 10088 bytes
SHA-256: e9ada3a168d4950f308ba23605abfc8c56d72039e77697058bbf970e085fafdf
font_02_sfnt_off00007e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8B 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.