Malicious PDF — malware analysis report

Static analysis result for SHA-256 473cba35c5c67fc5…

MALICIOUS

PDF

45.1 KB Created: 2020-08-19 18:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9fe500f23704d6dffd799f598ccef20c SHA-1: 227f46cfaff76d4fabc4c5dd26bc51578cfdd681 SHA-256: 473cba35c5c67fc5935dc5252548408a0c9cce8e56a912c74f798167f30fc876
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=blender+animation+projects, which likely serves as a lure to a malicious destination. The document body, though heavily obfuscated, contains references to this URL and other PDF links, reinforcing the link farm and redirection attack pattern. No scripts were extracted from this sample.

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=blender+animation+projects In PDF document text
    • http://files.brandtmarineinc.com/uploads/1/3/2/8/132814022/5412827.pdfIn PDF document text
    • http://files.mmevanneste.com/uploads/1/3/0/8/130814234/rubixarur.pdfIn PDF document text
    • http://fisowojed.thecameracart.com/uploads/1/3/1/3/131384169/a3f2407dabab5.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/1/0435/0184/6692/files/motor_insurance_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0416/4257/files/bovufasira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/71185285534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3503/2737/files/61910976222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/mubuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3400/8987/files/cargador_solar_para_celular.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0688/5031/files/38065789454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46283819311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/adventurers_wanted_book_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1865/7697/files/yang_ming_annual_report_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9550/6592/files/23096749458.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 6

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_off00007117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7117 5344 bytes
SHA-256: 2acce312c3a05340f0294e6bdb05f38a7844ee98d4199eb53e14b29f1d6aea5c
font_01_sfnt_off00008329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8329 10572 bytes
SHA-256: 9eb7a06187f0a08f352e6b931d14e05295de4fbe43b7ce9c6619274e6437ecfd

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