Malicious PDF — malware analysis report

Static analysis result for SHA-256 88c786af3f168864…

MALICIOUS

PDF

42.2 KB Created: 2020-08-10 01:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a535fb818807784dca3ef75ecf62cbea SHA-1: 69c329b2c3fba3c4781ecaf80db390fb565c8d77 SHA-256: 88c786af3f1688640d60ce7e49642d9822610423f8b79ca914d8ecd6bc17726c
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to appear as legitimate resources, but ultimately redirects to malicious infrastructure. The primary redirector URL is 'https://ttraff.com/pify?keyword=adjective+and+adverb+phrase+pdf', which is used to obscure the final destination. The document body itself is heavily obfuscated and contains embedded URLs, suggesting an attempt to disguise its malicious intent as a free download lure.

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=adjective+and+adverb+phrase+pdf In PDF document text
    • http://files.fengshuixing.com/uploads/1/3/1/0/131069934/68d5c.pdfIn PDF document text
    • http://tixipegip.marshallterrace.org/uploads/1/3/2/7/132710779/dozubot-jawova.pdfIn PDF document text
    • http://files.kathrynrobertson.co.nz/uploads/1/3/1/4/131454482/48bf38a9f6b59d.pdfIn PDF document text
    • http://files.fit4lifepilateswellness.com/uploads/1/3/0/7/130740213/pujone.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/1/0432/0962/1665/files/5498661292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3735/9271/files/b._l_theraja_volume_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/4343624372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3621/1357/files/25043151879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3140/2395/files/economic_depression_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3141/2379/files/99461676623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5756/9189/files/71560885942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/jajirajabude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3530/3831/files/lusawekeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4431/5040/files/74713225915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7623/0047/files/kosoderig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/rugrats_royal_ransom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/wenomafetajipuf.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 8

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_off00006716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6716 5476 bytes
SHA-256: 51715aa36fe4acf8b7bc992e3b7edc9e11bd0d5d5f6e44b0084257b7367d069b
font_01_sfnt_off000079bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79BC 10104 bytes
SHA-256: 81069d196cb2290ea2272487b98ebe4fabe677e0726daf19e1e040b3dbedd1bb

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