Malicious PDF — malware analysis report

Static analysis result for SHA-256 9974ddcc96d17a36…

MALICIOUS

PDF

43.7 KB Created: 2020-09-10 06:06:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06a9c0ec60fbb61a78e7076aaf58e93f SHA-1: 2507f37e1d77e9bff4cdf2fc807a35ae206dd66e SHA-256: 9974ddcc96d17a36fed3de9a0c41aac17104fd70e0bc6d0f24ba80b66429ed92
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF contains a mass external link farm, with the primary malicious redirector URL being https://ttraff.link/wix?keyword=deloitte+uk+digital+transformation. This technique is often used to obscure the final destination of malicious links, leading users to phishing sites or malware downloads. The ML classifier also strongly indicated maliciousness.

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.link/wix?keyword=deloitte+uk+digital+transformation In PDF document text
    • http://zexin.made-by-nature.be/uploads/1/3/2/6/132681481/6114034.pdfIn PDF document text
    • http://zajebolo.natickpegasus.org/uploads/1/3/1/4/131409090/2566457.pdfIn PDF document text
    • http://files.handson-la.com/uploads/1/3/1/8/131872199/mafiwapepu-zinud.pdfIn PDF document text
    • http://files.oa-involve-agewell.ca/uploads/1/3/2/8/132814972/9798340.pdfIn PDF document text
    • http://durad.torontograffiti.ca/uploads/1/3/1/6/131637316/zumori.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/1/0430/1104/7575/files/wordly_wise_book_8_lesson_15_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/pibegijalafojeberigomobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/17513195154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4352/0665/files/84894574830.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e4ff69_34dc78dc5183470eb3fe0426884e08ca.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/68ec51_53026a9ebb4a4ac782d99b766376ca8b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c4b402_f018da76773149eabaeb70e38b52e3a6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/32acb1_7cfee74a190f4feaba3a2d1386a6226c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/4337/3480/files/nivijokazubozij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5767/5431/files/trains_rising_sun_rules.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_off00006bd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD3 5288 bytes
SHA-256: 7c333a8b005ce220fdc1e49391b41f531633851bb0f1fa0370249581a7da4995
font_01_sfnt_off00007dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC7 10744 bytes
SHA-256: 882d01ad00e6ed6682dcb1f9e8c347b38a27d9284b125bf7eddd775ba1172842

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