Malicious PDF — malware analysis report

Static analysis result for SHA-256 3aa6a67f5053db08…

MALICIOUS

PDF

50.2 KB Created: 2020-08-12 15:34:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95e859e2fdef1bfe5dd500ca75c061e4 SHA-1: ee15ef5018b9d5e2912a9576321092940157f1b5 SHA-256: 3aa6a67f5053db088f20bc21f3e8013e4c59fdeb9df9af832342250d2340e16b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify, likely to obscure the malicious destination.

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=assessment+in+special+education+a+practical+approach+pdf In PDF document text
    • http://files.cafeahuriri.net/uploads/1/3/1/1/131164324/sivatuxana.pdfIn PDF document text
    • http://files.meridianelemptsa.org/uploads/1/3/0/9/130969194/087e4.pdfIn PDF document text
    • http://files.joemillsaps.com/uploads/1/3/1/4/131409167/wunoni.pdfIn PDF document text
    • http://xapigeja.his-info.com/uploads/1/3/1/4/131453028/8539858.pdfIn PDF document text
    • http://fovulana.paws4change.com/uploads/1/3/1/3/131383771/dobirekalu.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/1/0433/6690/8054/files/witudojoruwudarufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8488/9758/files/94555869378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9369/5391/files/write_your_business_plan_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4097/7574/files/coordinate_geometry_formula_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9588/2918/files/97928529191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/27557228908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7254/4150/files/call_flooder_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0064/2211/files/lajalekeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5258/files/4692959695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/furupokexopaxabisovijuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/2655703823.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_off0000860f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860F 5384 bytes
SHA-256: 2ca0d7d8a98d3fa57f037f84513ce152524fb38bbfd0bcab3797a077ecd9ebe6
font_01_sfnt_off00009827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9827 10180 bytes
SHA-256: fb6753359108ce5a65189ad8d860da0c53c4dd953ed1906fdd9715ad6a8d89d4

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