Malicious PDF — malware analysis report

Static analysis result for SHA-256 199dc27b440b12ab…

MALICIOUS

PDF

53.0 KB Created: 2020-08-11 09:33:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 544f16de3ae8aede1963a5b033f74757 SHA-1: cc15425eae5c7c485260adca6bcc939c0b8cd34f SHA-256: 199dc27b440b12abded6fc47a74695f2c52ad3d960745366692147751dbdad68
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to attract search engine traffic. One prominent URL, 'https://ttraff.com/wb?keyword=animal%20farm%20book%20pdf%20chapter%202', is identified as a malicious redirector. This suggests the document is part of a phishing or malware distribution scheme, using seemingly legitimate content to redirect users to malicious sites.

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/wb?keyword=animal%20farm%20book%20pdf%20chapter%202 In PDF document text
    • http://files.unitedcollections.net/uploads/1/3/1/4/131437779/eb93ca.pdfIn PDF document text
    • http://files.perrykomdat.com/uploads/1/3/1/3/131383838/1212870.pdfIn PDF document text
    • http://files.hudsonagency.net/uploads/1/3/0/9/130969656/jadadadekipujiveg.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/1/0435/3638/4149/files/xowolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0673/files/fupiluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5128/4642/files/free_3rd_grade_math_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8497/2183/files/53020742364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9402/1030/files/archie_comics_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/39975048104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5261/1222/files/widipuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0611/6511/files/xubavizazupebejero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9011/5748/files/ftb_server_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1643/8438/files/energy_environment_and_climate_wolfson_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4833/6536/files/temporal_lobe_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3956/2651/files/lilagal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/tanorixax.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 3

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_off000092d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92D6 5544 bytes
SHA-256: f6d7986c8b9224ef1454fa6e2bf8089989c9391bbb6004553110a173607c02fc
font_01_sfnt_off0000a575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA575 9724 bytes
SHA-256: 7602c45f7cb4a78f97f4fa783d8b475af599eb51da31fa90128fb0ecade7bf8c

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