Malicious PDF — malware analysis report

Static analysis result for SHA-256 f505b72b3c24fc76…

MALICIOUS

PDF

42.3 KB Created: 2020-08-12 14:51:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 220604a3944b5cd165b7c86bd2cb32a8 SHA-1: 32471a9199c4ef162d044f326efd7c2b5b1f6276 SHA-256: f505b72b3c24fc767cb7f1387d8693bc4bbe6646b827adea7e1e5c0c5be19f11
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same suspicious URL. The primary intent appears to be redirecting the user to malicious infrastructure.

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=antibioticos+y+alcohol+pdf In PDF document text
    • http://files.justneighborsvt.org/uploads/1/3/2/6/132695280/wemubefoliwiwidari.pdfIn PDF document text
    • http://zifaparol.barcshelter.org/uploads/1/3/0/7/130776760/venenof.pdfIn PDF document text
    • http://pikitin.goodnote.ca/uploads/1/3/0/8/130814328/kuferogo.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/1/0432/0883/5229/files/vitomumurinikegobumolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4371/5229/files/mathematics_textbook_grade_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/height_of_binary_search_tree.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5224/2856/files/zoology_projects_for_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/95352077272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3872/8611/files/lofoxuraxonokobefegelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/70053710949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7179/0486/files/42726374954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7826/3718/files/rutorazigep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/lazikinudizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4047/2229/files/7794500483.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_off000067ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67EC 5380 bytes
SHA-256: 247d81482db003d93dca85376315aad5a457103fe0b55412d23f5c6b4af447a6
font_01_sfnt_off00007a29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A29 10144 bytes
SHA-256: 3549b385cd941bf0841766e3bdaf657da51168d2720d11672c680fea4fced658

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