Malicious PDF — malware analysis report

Static analysis result for SHA-256 097380f13b9035c3…

MALICIOUS

PDF

33.2 KB Created: 2020-08-15 13:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96af0980d8cc9d0d325cccdecca3636e SHA-1: 410ae6a2e81a289124238e21139bf6ede843b581 SHA-256: 097380f13b9035c3c89b072291ec2ecd69d3c9b388528449bfc239b44aeab990
194 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.ru/wb?keyword=aide%20memoire%20java%20pdf`, which is flagged as malicious. The document body and embedded links suggest a phishing or scam attempt to lure users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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/wb?keyword=aide%20memoire%20java%20pdf In PDF document text
    • http://files.kathleenrhee.com.au/uploads/1/3/1/4/131409574/sizuzerixo_sopazorasamu.pdfIn PDF document text
    • http://files.haciendasonoma.com/uploads/1/3/2/7/132740218/7130198.pdfIn PDF document text
    • http://files.nafsijewels.com/uploads/1/3/0/7/130775978/508b806bff.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/1/0430/5063/1319/files/96824716149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0534/8761/files/bin_sachivalay_clerk_exam_paper_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0158/5569/files/dosenumebirufodoropimiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/63182029422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/nadofosunijenegez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/jobavifawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5264/5017/files/basel_committee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/sevidozesiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/pharynx_and_larynx_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4637/7374/files/wosoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1342/2753/files/zaxupolajuxaledudedobaf.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_off0000449a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x449A 5104 bytes
SHA-256: a55b8b358dabed40b6973198733f30d43349d2c0e2b5bff40cde899486c21931
font_01_sfnt_off000055e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55E9 10064 bytes
SHA-256: 1e7318c2fd5072a1b1bf49f3523036b5e049f3cd3951b82e3e912ce476703bec

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