Malicious PDF — malware analysis report

Static analysis result for SHA-256 741b9e01ad8eba3f…

MALICIOUS

PDF

54.6 KB Created: 2020-08-11 02:54:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 844530761ec8559af73a6f4a83f47bba SHA-1: 60d026cf435c2a82a507c633e66267cd022d3e03 SHA-256: 741b9e01ad8eba3f88ff5e43a8dcd0dfb1af0f9470d5c63dee74fe8239f02b4b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as legitimate downloads but redirect to malicious infrastructure, specifically identified as a redirector at https://ttraff.ru/pify. This is further supported by heuristics indicating a malicious redirector link and a link farm for SEO phishing. 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.ru/pify?keyword=supply+chain+management+and+logistics+pdf In PDF document text
    • http://files.gilliancarmoodie.com/uploads/1/3/2/7/132740480/saxokigavewetep.pdfIn PDF document text
    • http://files.personalhibachichef.com/uploads/1/3/1/3/131398234/689f4a93fe9.pdfIn PDF document text
    • http://files.robertsfourthwatch.com/uploads/1/3/0/9/130969206/b3530888346a6.pdfIn PDF document text
    • http://duleve.foodfightdenver.com/uploads/1/3/1/6/131637419/gasofakotuxisulas.pdfIn PDF document text
    • http://files.infinitecardinality.com/uploads/1/3/1/4/131482975/wegaxolusoxosugukefa.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/1/0433/1126/7990/files/7230503411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4496/files/bank_book_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0911/3240/files/5652231580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3668/0102/files/pomegolivubiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4786/1928/files/binudiwapukana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3771/9717/files/short_stories_for_reproduction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0762/files/38939164231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1520/8098/files/presentation_speech_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/codex_gigas_full_english_translation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7877/9029/files/visefekitilipevadeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4779/2288/files/technical_analysis_tools.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/tajetopilura.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000937c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x937C 5676 bytes
SHA-256: bd9bfba1c02fb048abeeac091e8a040144ee1ffa5aacf501c0bcc68135aad6e8
font_01_sfnt_off0000a6af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6AF 11096 bytes
SHA-256: 2abf4e865433876cadd543d16911efdb55ba8ba2dd16969fce344bc6ee0e414a

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