Malicious PDF — malware analysis report

Static analysis result for SHA-256 06cb6d6f2e5b6f99…

MALICIOUS

PDF

32.8 KB Created: 2020-08-08 04:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5e727d95a46fdfce0b46c83746a2412 SHA-1: 85ba4c583ef4a7e39c83477fc44ab32498d784eb SHA-256: 06cb6d6f2e5b6f9962ef546510c0d115659728814745d6e6867b88608ab5104f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, but one critical link redirects through 'ttraff.cc' to a malicious URL. This indicates a link farm or SEO scam designed to lure users into downloading what appears to be a legitimate document, but ultimately leads to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=etica+y+coaching+ontologico+rafael+echeverria+pdf In PDF document text
    • http://files.petportraitsbyjen.com/uploads/1/3/0/9/130968993/3269997.pdfIn PDF document text
    • http://files.kristinjerickson.net/uploads/1/3/2/6/132695586/3112540.pdfIn PDF document text
    • http://files.smwunlimited.com/uploads/1/3/1/4/131454034/cb5eb4.pdfIn PDF document text
    • http://files.students.norledgemaths.com/uploads/1/3/1/0/131070450/misozovir.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/1/0436/3547/4590/files/89284040098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7258/5881/files/light_bearers_a_history_of_the_seventh_day_adventist_church.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8483/1125/files/vamafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2311/3119/files/reverse_a_string_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/arduino_mega_2560_pinout_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/paditufepibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/sikegesidig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5258/1542/files/wizekebalusakanopogobaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4823/0297/files/xujaxokuwenenofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0735/0696/files/vubajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/xezuwubidutelaxuzuvubebe.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_off00004484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4484 5356 bytes
SHA-256: 478664485a529f982a5b4533cccafe3e0088d3ad6aff78be8ede5e1be7c228ea
font_01_sfnt_off000056ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56CE 9104 bytes
SHA-256: 0c39c5da31ef36a42c0f59155deecc84c3f9558867997324c17512e14b15c0e3

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