Malicious PDF — malware analysis report

Static analysis result for SHA-256 1434a89fddb1d23f…

MALICIOUS

PDF

45.5 KB Created: 2020-07-30 12:01:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b6daee22c9997cd55020054355056c2 SHA-1: 080c024e5b5c3d474cb708f9a591a31341b29b56 SHA-256: 1434a89fddb1d23f624cda5f37abad3e4bd017c56913a901c55bd5d974892c35
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) disguised as a search result for 'disadvantages of solar energy pdf'. This indicates a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content or further compromise.

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=disadvantages+of+solar+energy+pdf In PDF document text
    • http://files.marineservicecorps.net/uploads/1/3/0/7/130740586/futonagi.pdfIn PDF document text
    • http://files.ri4d.com/uploads/1/3/1/4/131406841/d0ac222d397d139.pdfIn PDF document text
    • http://files.all2run.com/uploads/1/3/0/7/130739015/wajabit-nowoxazepodu-jazimifusi.pdfIn PDF document text
    • http://files.primarytackle.com/uploads/1/3/0/7/130740053/lufanizowag.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/1/0429/7284/0090/files/41070351827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/nemisikawek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8873/0525/files/23250083573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7135/4533/files/57493164484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/mepukofujedepilab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6381/2002/files/kurikuzoruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5195/8947/files/lakofidixonofup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0684/4315/files/xorubogifeselosatotesag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0215/0557/files/rezunevizefudebexojeboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6430/3516/files/widubunugoxejawigew.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_off00007456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7456 5160 bytes
SHA-256: 95111ce869b0754bd2b593765b547ee8f6c6286e532da76363a1078e31ba4c5d
font_01_sfnt_off000085f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F8 10156 bytes
SHA-256: 1bc52cd8ef1f2da2bbb20de3346a6eaeb6a218e2e58880f0d8c07756d5b7f660

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