Malicious PDF — malware analysis report

Static analysis result for SHA-256 249281885800229e…

MALICIOUS

PDF

40.6 KB Created: 2020-08-30 19:11:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f019d3bb11a13232db8b26d433706946 SHA-1: 44d051a700c4f3a2b267aac5eade93badb0741af SHA-256: 249281885800229e3e45b352f953d2ac6ab374d17dc71cdf5bf6d3c6a80cb063
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a high number of embedded links, many of which point to Shopify domains hosting other PDFs. Crucially, one link directs to a known malicious redirector, ttraff.cc. This suggests the document is part of a link farm or SEO poisoning campaign designed to lure users to malicious content. The presence of the malicious redirector URL is the primary indicator of malicious intent.

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/wix?keyword=eoshd+pro+color+3.+0+pdf In 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/1/0428/9835/8432/files/27482348981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1816/6167/files/uncle_tom_s_cabin_by_harriet_beecher_stowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4175/8101/files/dolar_minuto_a_minuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/wimen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5111/3887/files/2013_cadillac_srx_premium_owner_s_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6149/1365/files/html_to_library_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0358/files/3834727820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43377474007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0996/5212/files/topezovifabazevolikenako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6936/4632/files/english_grammar_antonyms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0414/8381/files/ic_cd4051_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9311/5548/files/best_android_phone_photo_recovery_app.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0c7359982ed24ee2baf6faef56330ab3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_95e37550f5e44b318819e444bdd307da.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_9cc8506eb33d413a80025dac45783ca4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/599026_1a4aafb91fb84cdaabc3017f5b220873.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE0 5328 bytes
SHA-256: 67e4d98f33bb01de07988dacf59a515d92a904b620675f95e99fde6549cb6bea
font_01_sfnt_off00006e00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E00 11804 bytes
SHA-256: 2a6ebcf93996a3885ac45ba3aa5cd12036ece06771ff3f79a9ff1c4c45bfbf0e

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