Malicious PDF — malware analysis report

Static analysis result for SHA-256 2128a5e2eacb825e…

MALICIOUS

PDF

39.6 KB Created: 2020-08-23 06:55:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3da4d50302e415a427d48c914500865e SHA-1: 560c2b86ac45204290b84515ef92a54d4903f335 SHA-256: 2128a5e2eacb825ecc767c57187de9920b2eb79df9f89e070a3fb2f4c62e6abf
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=broiler+pan+vs+cookie+sheet', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains this URL and other Shopify URLs, suggesting a lure to external content. The primary attack pattern observed is the use of malicious links to redirect users to potentially harmful sites.

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=broiler+pan+vs+cookie+sheet In PDF document text
    • http://files.theeducationalfarm.org/uploads/1/3/0/7/130775221/dalozezipuderili.pdfIn PDF document text
    • http://files.d-aleksandar.com/uploads/1/3/1/4/131411539/fotez-vowaresolu-bipaworebo-rejedo.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/1/0435/0250/2048/files/silumefuxavewamelabuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7968/6549/files/60789391967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zututekafufefosapebuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8169/8199/files/format_code_visual_studio_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7477/files/dd2_incursion_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8597/1110/files/database_normalization_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2245/files/59938509726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5107/3174/files/xupadopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/borowasex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2581/5959/files/black_south_african_history.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_off00005d5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5D 5192 bytes
SHA-256: 9df1e36e4187e4213789e22ecfbc4f0ece7b7c9d433aacca2503365e2dd5a03b
font_01_sfnt_off00006f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F01 10240 bytes
SHA-256: 5ca79d77ada41adf3e8a122678160367308bcaafacf8f4ee380b8b53bbd0d9a2

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