Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e5b8d8009978af3…

MALICIOUS

PDF

40.6 KB Created: 2020-08-24 13:44:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d2f82d0a5fb9faa084f401460fc05e8 SHA-1: 79aeec208a5654b5aad3ebfd9fc4c1ce1614ed18 SHA-256: 5e5b8d8009978af32f83f926890190a4d337273bfab88202643615e58763b68f
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to external PDF files hosted on Shopify. A critical heuristic indicates that some of these links redirect to malicious infrastructure via 'ttraff.com', suggesting a link farm or phishing lure. The ML classifier also strongly flagged this PDF as malicious. While no scripts were directly extracted, the structure and embedded links are indicative of a malicious document designed to lead users to further compromised content.

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=brightsign+xt1143+user+manual In PDF document text
    • http://files.stronghandsenterprises.com/uploads/1/3/1/3/131382387/kufun_rejakudixi_xixidup.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/1/0437/7024/9374/files/5912506832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2603/9452/files/belikapotebimofuvaxupag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2200/3872/files/derecho_latinoamericano_cbc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2710/2887/files/wimawobatovawav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3742/3776/files/lanitopadajubawuboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/xibuxepilubipowegokudabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1205/5463/files/xolojexosadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/73573003785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7063/6710/files/66570548515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7181/files/wekav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/joromasusumewijorenake.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 1

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_off00005fd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD6 5520 bytes
SHA-256: 2a55101f533ade01e21810f8e39502444a69fd274945d7bdb9ecf9af7ec6ded3
font_01_sfnt_off00007280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7280 10332 bytes
SHA-256: 7c13e922538cc21d8476ab2d0413e4a9d666d90e1015a870df93d62f8d4c7bf3

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