Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed9b1ccc28f5ab0…

MALICIOUS

PDF

45.5 KB Created: 2020-08-08 14:10:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fc0c4a11d3575bfd37766e81511b5f1 SHA-1: 0b05f64569a1b7c2efcb85edb38ba4e855692852 SHA-256: 7ed9b1ccc28f5ab008704e18546a8ed1c9d5d5bbf3bf4b1d974d09ac17b71b33
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to redirector infrastructure like 'ttraff.com'. The primary link identified directs to 'https://ttraff.com/pify?keyword=biacore+x100+pdf', which is flagged as a malicious redirector. The document's structure and numerous links suggest an attempt to distribute malicious content or phish users by directing them through a chain of redirects.

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=biacore+x100+pdf In PDF document text
    • http://files.waygoodtherapy.com/uploads/1/3/0/7/130740589/kewefimavum.pdfIn PDF document text
    • http://tetat.dentistmedellin.clinicamenta.com/uploads/1/3/0/7/130776445/e3662a0.pdfIn PDF document text
    • http://files.sherieunfiltered.com/uploads/1/3/2/8/132815961/a59b4b501cc8.pdfIn PDF document text
    • http://files.elianed.com/uploads/1/3/0/8/130874110/1658290.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/1/0434/1386/4604/files/kibapov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/jatolebugifupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2566/9028/files/kozakebadefokifinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/97654809276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6219/7400/files/vapomofalalilanoxisol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/585462177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9713/6030/files/juxawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2040/2337/files/farivofebomukekunaduwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/duwotewaxejatigazobuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/cyanogen_kindle_fire_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/anticoagulantes_orales_nuevos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5183/5801/files/xaxofavikuxirem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7917/2257/files/staining_methods_in_microbiology.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6464 5248 bytes
SHA-256: 3d948ac8ee2380b0b201b1e4071b0a131d3ec836874110047e121b78311b8194
font_01_sfnt_off0000765a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765A 18072 bytes
SHA-256: 4951fd9e28f378c1a7c3817a03e7fed878f4ab5045e4d8c58567de564d5f3d8e