Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b2418cf234affa8…

MALICIOUS

PDF

91.2 KB Created: 2020-08-04 20:31:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d978c45ae577486a1fe15034ecdc1252 SHA-1: 3903baff89e765542d703a1b2684f4982dec1c4c SHA-256: 7b2418cf234affa8be52413cff6f36f3e0083a5bd44d21716dd068310bd83ea0
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to Shopify domains, but a critical heuristic identifies a malicious redirector at 'ttraff.com'. This suggests a phishing or SEO manipulation scheme, likely intended to drive traffic to malicious sites. The ML classifier strongly supports the malicious nature of this PDF.

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=cardiac+arrest+treatment+pdf In PDF document text
    • http://files.lovemybakes.co.uk/uploads/1/3/1/8/131860787/busaporirenamet.pdfIn PDF document text
    • http://xuruzilig.acuedge.net/uploads/1/3/0/8/130814758/da2c93b4748b13.pdfIn PDF document text
    • http://files.reliefandreconciliation.org/uploads/1/3/0/7/130776517/4027b68b6673aaa.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/1/0433/8126/0440/files/vowamilojumogiguxodesum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/48497769072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2208/1448/files/zikuxixodepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4211/0625/files/wamuvoxetakanobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9567/8359/files/67394793953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9002/7430/files/40515109576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0378/9991/files/22010300576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5895/3369/files/pitupejigufozugowoxibugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/667065386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1004/6621/files/lacey_and_manx.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_off00012a87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A87 5172 bytes
SHA-256: fb1b773d80e0f7a8f8cf3c3ee0fbe73be9e9d16d4142b2a36e3c94aa34363b85
font_01_sfnt_off00013c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C04 10456 bytes
SHA-256: acbf50a19769db86c657f4b5db48413fff85074db36cf4e478cf593f63eab5ae

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