Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1dd95ebf847fb0…

MALICIOUS

PDF

44.9 KB Created: 2020-07-29 06:15:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aee5ab021da7f1b68ee9b64effda8052 SHA-1: b0153938006071fb48a787123d0a24911b06da9f SHA-256: 7b1dd95ebf847fb0962e1f09402609a7df302428db3e8b1f677be153d015d233
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, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness. The document's content, though heavily obfuscated, includes references to a "notary block texas template" and is generated by wkhtmltopdf, often used for creating documents that mimic legitimate ones for phishing or scam purposes. No scripts were extracted, but the presence of malicious redirectors and the ML classification point to a phishing or scam attempt.

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=notary+block+texas+template In PDF document text
    • http://files.worlandshootingcomplex.com/uploads/1/3/1/3/131383838/ludir-goxeni-bawudodas-zulusuvevebi.pdfIn PDF document text
    • http://files.pittsburghrunner.com/uploads/1/3/0/8/130814714/mijuxifafok.pdfIn PDF document text
    • http://files.breezybrigade.com/uploads/1/3/0/8/130874671/3231728.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/1/0433/8538/9221/files/vedizodapotewarogaxusosim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9799/5941/files/jasixaxanura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5384/9499/files/89222006099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4363/5879/files/21798577856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2992/0930/files/73268267218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/puxadaxunuxanusigevir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8801/8594/files/8530073517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9765/3397/files/sowexivetox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1883/0492/files/jakefejawevogeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9234/3970/files/36696678912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5769/0262/files/48051328168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2064/6562/files/87518870790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/bogutoxe.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_off00007274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7274 5056 bytes
SHA-256: 924781c7c1f8ec0a52715f76f9ce2a93d1d3da57ca18985af788b8fc5e2b48f0
font_01_sfnt_off000083b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B6 10260 bytes
SHA-256: 08cab9e378c59ea8a5d93289f38bb65c63c7dee74f3e514e4e2c46dab63608e4

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