Malicious PDF — malware analysis report

Static analysis result for SHA-256 17515c2162925fcf…

MALICIOUS

PDF

41.7 KB Created: 2020-08-20 20:02:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1710cde53c10a7f1bd73110d4a143bec SHA-1: 2b792d9d4db4372eb5caa2b8d6cf8f89bc4a8a6c SHA-256: 17515c2162925fcf4077c611d1804908738ad4837b6d2597ea174ef800d4a8da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt disguised as a free download. The ML classifier strongly suggests malicious intent. The primary redirector URL is https://ttraff.cc/pify?keyword=shower+waterproofing+sheet+membrane, which is used to lure users to potentially malicious content.

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=shower+waterproofing+sheet+membrane In PDF document text
    • http://tegotux.utadao.org/uploads/1/3/2/6/132683001/3743944.pdfIn PDF document text
    • http://files.lakemanorestates.com/uploads/1/3/2/7/132710575/8820505.pdfIn PDF document text
    • http://judigexav.themakerexpo.com/uploads/1/3/1/6/131636612/7421549.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/1/0433/0727/0297/files/67006664814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7704/2337/files/37870185014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9898/1030/files/60597662643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/losevusemos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4575/5797/files/70810406923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wetitoditasenubekuxon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9693/2505/files/44873009548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7317/4693/files/nutri_ninja_smoothie_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0794/2549/files/taworiboxexapusesex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2860/3295/files/free_printable_bulletin_board_letters.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_off000062c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C0 5620 bytes
SHA-256: b75f721621c53f2f822e0f7ffdd5ff2845f36cd7f093944ff1e02e2bda3b68e5
font_01_sfnt_off000075c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C3 10668 bytes
SHA-256: ca29baac81b1ef00fd1ce1b3df4573df33548a8e4b6e0baa7e1ff6dc253e7309

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