Malicious PDF — malware analysis report

Static analysis result for SHA-256 df95f57bd25a4a2b…

MALICIOUS

PDF

45.0 KB Created: 2020-08-14 18:36:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3959f2562c18f680c87d17d9e225944d SHA-1: 663fe0ad58b58a0c0899d6e650b6be9f1abc2501 SHA-256: df95f57bd25a4a2ba86299971875b02f316098259bc264b625f99fe974dcf33b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=children%2527+s+aid+society+toronto+reporting'. This indicates the document is designed to redirect users to malicious sites. Additionally, the PDF was flagged as a link farm, containing numerous external links, many of which point to Shopify domains hosting PDF files. The ML classifier also strongly indicated maliciousness. The presence of these elements suggests a phishing or malware distribution attempt.

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.cc/pify?keyword=children%2527+s+aid+society+toronto+reporting In PDF document text
    • http://dadavow.seewhy.info/uploads/1/3/1/4/131406717/muxobuvojukeno.pdfIn PDF document text
    • http://files.longbowtaxidermywi.com/uploads/1/3/2/3/132303009/fosajemut.pdfIn PDF document text
    • http://files.17southstreet.com/uploads/1/3/1/4/131406344/6528320.pdfIn PDF document text
    • http://dorob.lancasterva.com/uploads/1/3/2/7/132740965/8317839c2.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/1/0428/8135/1839/files/cambridge_checkpoint_science_workbook_9_teacher_s_resource.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2440/7961/files/37252627052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4068/4697/files/78031678206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/sufoneruxuzuregebub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/3056351610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2440/7961/files/vovijadibesekuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/biblio_scientifique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4274/8069/files/pobajesidugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/carl_gustav_jung_libro_rojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/antigeno_prostatico_especifico_libre.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_off0000677b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677B 5376 bytes
SHA-256: 968bfed42e1f20d141ccc0b921db953224772e0c51c673f961ddf54b52edce77
font_01_sfnt_off000079c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C0 14492 bytes
SHA-256: 6ba66eeceaadee718f04bdb6833fc87654fd0c2a0dba7e47acb5d16a29cafda5

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