Malicious PDF — malware analysis report

Static analysis result for SHA-256 63caeacee6a5a328…

MALICIOUS

PDF

37.0 KB Created: 2020-08-03 04:08:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf1cfcde9e0406f3aaf894dc583fb8d1 SHA-1: cfbad4d12e507625884ac72ff797d4ebf0f92cad SHA-256: 63caeacee6a5a328941d895f17947bf02727e5790a7f7a117b14b05407d3ffac
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm or phishing lure. The primary malicious URL identified is ttraff.com, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF files, suggesting an attempt to distribute malicious content or lead users to phishing 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/pify?keyword=christmas+canon+sheet+music+pdf In PDF document text
    • http://files.grcrowfamily.com/uploads/1/3/1/0/131070190/3426f7e.pdfIn PDF document text
    • http://files.jamesmurdo.com/uploads/1/3/0/8/130874398/4b047b0d7bdda.pdfIn PDF document text
    • http://files.stopabully.ca/uploads/1/3/1/8/131871569/7949dc6.pdfIn PDF document text
    • http://files.thinkgrafix.net/uploads/1/3/0/8/130873877/likuwijolulel_pagipojiku_walovufew_bereru.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/1/0435/6017/3717/files/ratonafur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5198/3783/files/animal_magnetism_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51220099535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5748/7778/files/sinotorakamaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8973/1479/files/58895328841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/tank_trouble_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/21444694434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2310/4160/files/32391443862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/61644972264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0351/8887/files/71462296520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7020/files/chilton_labor_guides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7279/6310/files/94663587057.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_off000051a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51A3 5268 bytes
SHA-256: 737357c966aef9c284e8b639c49b275e32764c1fa5e5a89229ef1c8cf305592b
font_01_sfnt_off00006357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6357 10380 bytes
SHA-256: c7970d70d0d1b543b2a42e77e71fb361185540a3ea59754ee55670a9553672ed

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