Malicious PDF — malware analysis report

Static analysis result for SHA-256 9464ca73c07addaf…

MALICIOUS

PDF

39.5 KB Created: 2020-08-13 22:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b79ca74717b4f47f224f6f3b9c27bcfc SHA-1: 66a3f7dd9a8d3bdcbbbc468ce3338ab000455c41 SHA-256: 9464ca73c07addaf031197e0acefb35674487c4f1b67b676cd32f8c8def0542a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lure the user into downloading further malware or visiting a phishing site. The document body, though heavily obfuscated, contains the same malicious URL and appears to be a lure related to physiotherapy reports. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility of the malicious content.

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/wb?keyword=befund%20physiotherapie%20pdf In PDF document text
    • http://files.sarahclariusphotography.com/uploads/1/3/1/1/131164236/defikakad-kixuv.pdfIn PDF document text
    • http://files.petpigeducation.com/uploads/1/3/0/7/130738892/683a8b7a69e3f3.pdfIn PDF document text
    • http://lenasinux.honeybeetreasure.com/uploads/1/3/1/4/131453114/6463462.pdfIn PDF document text
    • http://files.fswff.org/uploads/1/3/0/9/130969764/fosiwemajubaxovozote.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/1/0430/6888/3098/files/gokigenorerujumux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9879/1329/files/gubenasitulamarolenuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1352/8987/files/81324312782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/menosunupajiminegoziged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0421/4942/files/69524648152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0102/6459/files/23211775835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3892/4181/files/90240244538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3706/4344/files/91469759705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7427/3948/files/19663279979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0055/1845/files/cancer_de_colon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/30494952051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/antecedentes_historicos_de_la_drogadiccion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5241/6672/files/82914942552.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_off000059fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59FB 5248 bytes
SHA-256: 09800ada15ef54acd3f5f3d2d95676fd8e74d9450bf955ca0a22f5ab1d7aa6e9
font_01_sfnt_off00006bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD6 10976 bytes
SHA-256: 525da048fbbd2681b466789172ac3e6a53cdc918381a62394ded8c45021e858a

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