Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c026a7c86b66be0…

MALICIOUS

PDF

38.3 KB Created: 2020-08-21 04:21:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae1bfb7a8d8e5848681856ed3fbaac7b SHA-1: d340398b3cf4d44dd0dc87138a24f7f65bf7cd6c SHA-256: 5c026a7c86b66be0235ffc6231aba8860efe0628b8d2f485927531ea5c07e5ae
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to redirector infrastructure like 'ttraff.com', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Fuchsia platform heels for sale' and includes the malicious redirector URL, suggesting a lure for phishing or malware delivery. The presence of multiple PDF links and the ML classifier's high confidence further support its malicious nature.

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=fuchsia+platform+heels+for+sale In PDF document text
    • http://files.sttheresefoundation.org/uploads/1/3/1/4/131406736/gowanelogifizot.pdfIn PDF document text
    • http://files.emateria.com/uploads/1/3/1/6/131606486/6180696.pdfIn PDF document text
    • http://fasimaxog.shireenliane.com/uploads/1/3/1/4/131407535/1646976.pdfIn PDF document text
    • http://files.eyer-sherry-promotional-portfolio-2019-2020.com/uploads/1/3/0/8/130814172/jagedim.pdfIn PDF document text
    • http://files.ivanazivic.com/uploads/1/3/1/1/131164153/b8847dc8d3321.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/1/0436/0772/0094/files/zasukimebisekemivipirovov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6980/8548/files/digivajolodozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4481/3470/files/aaja_ni_aaja_song_djyoungster.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0060/2525/files/ielts_reading_practice_tests.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0972/7912/files/trigonometry_6th_edition_mckeague.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/biotic_and_abiotic_factors_influencing_insect_life.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9621/files/bukosinepabosavobox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2606/2239/files/77627177447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4460/8932/files/jurubavokugagita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/madexojemegixunil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/architectural_drafting_and_design_free.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_off000051e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51E2 5208 bytes
SHA-256: 4a9888727d385c0f83cfc2d6c0fef220d0548b452e03b914a368ccad4518bbca
font_01_sfnt_off00006372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6372 12352 bytes
SHA-256: 1135d8ec5e6e08df0c952793e1cf2c04444a25c66cc762174d03af54a28f5bc6

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