Malicious PDF — malware analysis report

Static analysis result for SHA-256 48b66ecad071fd8c…

MALICIOUS

PDF

44.6 KB Created: 2020-08-14 18:24:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df75c1fc26a0df82369c19de8af5c147 SHA-1: a42e07d0f4ea91c8d9d6fa397abcd7843aebf203 SHA-256: 48b66ecad071fd8c6c9b0b4a3a7fe0b357222ea1ba0dea4d849c3bced94dcf2d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, many pointing to Shopify domains hosting PDF files, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely the primary malicious component. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated.

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=bulova+precisionist+96b260+manual In PDF document text
    • http://files.mikephelpslaw.com/uploads/1/3/0/7/130738710/gepawasose.pdfIn PDF document text
    • http://fuvagugub.artandsoulbymica.com/uploads/1/3/0/9/130969264/megikumubunusamil.pdfIn PDF document text
    • http://zuvenali.kingsleymatheson.com/uploads/1/3/1/8/131856257/983405.pdfIn PDF document text
    • http://files.vikkifieldsartist.com/uploads/1/3/1/8/131856852/5bb932e0eb99c4a.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/1/0439/1731/2168/files/medscape_physician_compensation_report_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7586/6519/files/taxemavesivesegaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1765/8780/files/zixogotarig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6225/3978/files/44532748033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0271/6572/files/aospine_masters_series_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6508/8936/files/bekajiximuzebibaserorap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6910/2485/files/45596909315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7405/files/xawegegizet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dazexirorojukulovamedifuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7779/4982/files/jufabofagowasikikikeru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2226/2167/files/the_danish_girl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2327/7973/files/story_central_4_student_book_free_download.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 2

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_off00006870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6870 5912 bytes
SHA-256: 9ae89c65c0ee8194bc383a59f88a605a92f0fd9bd7def4728051a6787686abf9
font_01_sfnt_off00007c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C73 12452 bytes
SHA-256: 57ecab293a64711a7ea59a5ba0d72568a0c583a7c1e8fe203b4d7f4f36c6b17d

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