Malicious PDF — malware analysis report

Static analysis result for SHA-256 54392bf06014e217…

MALICIOUS

PDF

41.5 KB Created: 2020-08-14 19:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab758f943bf45b4192f31b97526d7375 SHA-1: fd2265e7ffab55eb11fba45a74cecd1a1a2a54bb SHA-256: 54392bf06014e2173290d4c99daf352aad8d339356ec37552ecef605c56dfa8c
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a document about breastfeeding. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or to obscure the malicious redirector. The ML classifier strongly indicated maliciousness, and the overall structure points to a phishing or redirection attempt.

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/wb?keyword=breastfeeding%20vs%20bottle%20feeding%20pdf In PDF document text
    • http://files.gwcservices.org/uploads/1/3/2/3/132302992/tobewutasatofod_pafidulapikexik_metomu.pdfIn PDF document text
    • http://files.ecocleancare.com/uploads/1/3/1/6/131606813/manotedexabopaj.pdfIn PDF document text
    • http://files.imamoneymaker.com/uploads/1/3/1/6/131636737/jipivozukulat.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/1/0431/0751/6565/files/95202557370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/the_amory_wars_volume_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/tiwulima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7867/1783/files/interview_questions_and_answers_for_teachers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8085/7253/files/tubukajexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/toziwomeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/tefokutime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6618/7176/files/runenekibiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/29104775759.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 6

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_off000063dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DC 5460 bytes
SHA-256: c19acd7506bbfefd6cc4c34279021080c5f60b4b1936cb83c78259b4f34b6432
font_01_sfnt_off00007679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7679 10288 bytes
SHA-256: 66b6d63ca39526fd01249e129e3f2b9fb15bfb047ea5c7041668db45d46e25f0

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