Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccb57d08385bc4c0…

MALICIOUS

PDF

40.2 KB Created: 2020-08-08 23:38:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa24823955beb89b4a08345d3cc5fdbc SHA-1: 0adf7d71e18151a7f5dd2e3775925b9e8b2322fb SHA-256: ccb57d08385bc4c05028ede29de388f05c75bfb426c3b6f4b14103ba97e4c3a1
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=bach+fugue+c+minor+pdf, is designed to redirect users to further malicious content. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a link farm or phishing lure. 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.com/pify?keyword=bach+fugue+c+minor+pdf In PDF document text
    • http://mekede.bankscannell.co.uk/uploads/1/3/1/4/131437657/c37e5a8f1fe740a.pdfIn PDF document text
    • http://files.bzdickstudio.com/uploads/1/3/0/8/130813975/1672307.pdfIn PDF document text
    • http://files.happytailsdaycare.com/uploads/1/3/1/1/131163897/jidigike-jizokali.pdfIn PDF document text
    • http://lemewon.ildiamon.com/uploads/1/3/0/7/130738731/4628413.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/1/0428/6346/0508/files/basic_spanish_lessons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2240/1185/files/91708786109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2548/1379/files/advanced_development_economics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7202/8823/files/sanape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/makalah_agama_hindu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/89431575294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0157/6602/files/cycle_of_abuse_domestic_violence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/87614585837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/siskiyou_pass_forecast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5564/4823/files/likejofixuvesazirapid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/74556815719.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 5

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_off00005f29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F29 5408 bytes
SHA-256: ed19f0d8a98b7a374c837d4b77b5a5b8602e7402e678f5623ac8a3c84f0e808f
font_01_sfnt_off00007167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7167 10060 bytes
SHA-256: 0ea8d28688374d02f25a0ce4076511c98b1e069aa6affb6bf9541d4cc9f11f01

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