Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dacf7cd2afcdd1b…

MALICIOUS

PDF

48.0 KB Created: 2020-08-01 23:36:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60853c37d02111393fd21891f978172d SHA-1: cf0cf2125d82a2855bc5ddacc18ae8ed1c952bd0 SHA-256: 5dacf7cd2afcdd1bd661797c2322d439fde1953e607ca1c9118fe134deb56ce1
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to create an SEO link farm, directing users to a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=php+replace+special+characters, which is flagged as a known malicious redirector. The document's structure and embedded links strongly suggest a phishing or malware distribution attempt, masquerading as a free download.

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.ru/pify?keyword=php+replace+special+characters In PDF document text
    • http://files.highpeaksadventureco.com/uploads/1/3/2/7/132740352/5d115159.pdfIn PDF document text
    • http://files.masoncitychristian.com/uploads/1/3/1/4/131454024/5377651.pdfIn PDF document text
    • http://files.pacificcoastpsych.com/uploads/1/3/0/7/130776031/b3516b70de4.pdfIn PDF document text
    • http://files.breatheserenity.com/uploads/1/3/1/3/131383575/xupiwar-jowejisu.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/1/0432/8236/6629/files/27977148493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/44764902530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/varufuzulusubutuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/5503674165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2454/5949/files/zidasewugomosovipatalule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2948/4952/files/9126081014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2039/files/17601174612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70278744099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/three_story_pagoda_memo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/77659186631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7078/2624/files/romance_of_the_condor_heroes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0594/3701/files/62328815929.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_off00005f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F90 5020 bytes
SHA-256: 6cb96234239a71aef21b070a3030c6c9d5faca7d7c501032137dd738e383cac5
font_01_sfnt_off0000709a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709A 25448 bytes
SHA-256: 98f4fd3bac23fa73baf03373802fb4c554e5d63b483bcf7a91a352c79ac5a56b

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