Malicious PDF — malware analysis report

Static analysis result for SHA-256 255385b5c50be3e5…

MALICIOUS

PDF

41.2 KB Created: 2020-08-22 19:47:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a3f767f3a08c910b4fe4593324f34ba SHA-1: 6a78cc661980516f7edc389e8c6f4b89ab9f12cc SHA-256: 255385b5c50be3e5a0c33083a457400f079862cf00a017c1a1e300d274cd7039
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a link farm, indicating a social engineering attempt to lure users to malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=visiting+card+format+photoshop. The document body, though heavily obfuscated, contains references to the lure and the malicious URLs.

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=visiting+card+format+photoshop In PDF document text
    • http://files.hrhgwenyfar.com/uploads/1/3/0/9/130969862/1d27675e339254.pdfIn PDF document text
    • http://files.zebradental.co.uk/uploads/1/3/1/4/131437311/7002933.pdfIn PDF document text
    • http://files.rockinghamcountyncdems.com/uploads/1/3/1/4/131437967/9503897.pdfIn PDF document text
    • http://wefijefuf.bereartc.org/uploads/1/3/2/3/132302978/1221230.pdfIn PDF document text
    • http://files.sbcusd-career-pathways.com/uploads/1/3/1/6/131637257/7720979.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/1/0433/0687/7080/files/bifivejeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1268/4967/files/diagramming_sentences_practice_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8145/0151/files/vulizazuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3918/6344/files/automatic_parking_brake_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5306/9974/files/mastering_physics_solution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8820/7254/files/dawn_of_war_soulstorm_trainer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9861/0591/files/kitomapixoxoxagodam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8944/3483/files/heteronyms_worksheets_for_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9721/8458/files/79213303925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6766/0706/files/any_video_by_link_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9218/1153/files/67041511218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8298/files/lolabawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/porawaveruwaju.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 8

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_off0000636b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636B 5504 bytes
SHA-256: 7cdf1ffae6e63a4fac33cbef51b3c616d5f466614f5c7fb593683e23269a3d34
font_01_sfnt_off000075f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F3 9852 bytes
SHA-256: c788385cd0757dcc8d398999f00740e7e9bc2d9849b25bc5a91ba31326146778

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