Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e88b4aa7415ddb7…

MALICIOUS

PDF

38.7 KB Created: 2020-08-21 15:29:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5dcc3a087574a8f692195b183ca09a58 SHA-1: 60ed018579fc46edf10bc94765e5dc445b484ce6 SHA-256: 5e88b4aa7415ddb7bf5b0258fa4e9879a1b5b651cb8b17fb2bd1a437a930de3a
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.ru/pify?keyword=formation+blanchiment+dentaire+bordeaux'. This indicates a phishing or scam attempt, likely using the document as a lure. 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/pify?keyword=formation+blanchiment+dentaire+bordeaux In PDF document text
    • http://files.saintlawrencewr.org/uploads/1/3/1/4/131453255/4741528.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/1/0429/2722/7036/files/93963513616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2723/2918/files/93455833315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8913/files/lyrics_sharp_dressed_man.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/28302244916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1120/files/ratimizerejor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/physics_walker_4th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0163/3177/files/43469414652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8163/8812/files/3929484355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1151/0170/files/access_bars_sorular.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/antologia_de_cuentos_de_misterio_y_terror_porrua.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/begekefisarisonilobidiv.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 4

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_off000057bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57BC 5164 bytes
SHA-256: 7505380bb5de959b8698d40cbbb29cc501c0da2e9419f05f8ddaeb9b828dd7c4
font_01_sfnt_off00006916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6916 10920 bytes
SHA-256: 80976789f5d65266dad3400cc06a989c5e8ecf56869dd2226fceae64f9ff50a8

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