Malicious PDF — malware analysis report

Static analysis result for SHA-256 89555cbbe68a1d52…

MALICIOUS

PDF

40.6 KB Created: 2020-08-14 14:54:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ecfcb8754325e5275998346c50652e00 SHA-1: b73b1843ac0371ef5660be4c56cef575b0f79697 SHA-256: 89555cbbe68a1d52692f06c53b4daf01840070866fe694f90608c0d92d718ca1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm of 30 external PDF links, with the primary redirector URL being `https://ttraff.com/pify?keyword=f%25C3%25A4hre+ibiza+formentera+balearia+preise`. This indicates a likely attempt to lure users to malicious content or phishing pages. The ML classifier also strongly flagged this PDF as malicious.

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=f%25C3%25A4hre+ibiza+formentera+balearia+preise In PDF document text
    • http://files.aquadrolab.com/uploads/1/3/0/9/130969300/josapesekag_navasagupuzeli_samijexe.pdfIn PDF document text
    • http://girasap.skincrediblellc.com/uploads/1/3/1/0/131069839/xuvijireko.pdfIn PDF document text
    • http://jukofuxu.augustineproject.org/uploads/1/3/1/4/131437375/vujedodi.pdfIn PDF document text
    • http://widafalut.okawaracollegeconsulting.com/uploads/1/3/1/4/131453858/pazanadijewa.pdfIn PDF document text
    • http://files.hhslmc.com/uploads/1/3/1/4/131482886/3b9f53.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/1/0438/6154/1014/files/2465816919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9736/7452/files/jewebazirabitegewalenite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4974/0438/files/bacterias_coliformes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/27885211706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/49389329152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0201/1548/files/lavixobutapubadikika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4590/3774/files/force_quit_bluetooth_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/0670/0183/files/tedalalelogilesalakolidun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/dawedavatajad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8860/8418/files/tri_fold_template_for_google_docs.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 1

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_off00005d99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D99 5520 bytes
SHA-256: 9281517103b384a583f2584984cc7ba187ddb8db259067ecc2e78e24ecef8754
font_01_sfnt_off00006fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB8 11004 bytes
SHA-256: aa9696a95ecd3f3b7778a5c0d8b961d4f0b9655f2a39e17bd356d512dd8f4469

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