Malicious PDF — malware analysis report

Static analysis result for SHA-256 67be0b5556b83675…

MALICIOUS

PDF

46.2 KB Created: 2020-08-15 06:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0bd02250e128c31611e4b988e57a19c3 SHA-1: ab0c63b78c42c13353361921cb0e096f0bffe0b2 SHA-256: 67be0b5556b836758c60a228b7bcaa54d764ab8d4433b47bd034ed5ab8c225c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=information+asymmetry+moral+hazard+adverse+selection'. This redirector likely serves as a lure for phishing or to distribute further malware. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm or SEO manipulation tactic to increase visibility and traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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=information+asymmetry+moral+hazard+adverse+selection In PDF document text
    • http://gasafovan.mrscroninphysicalscience.com/uploads/1/3/0/7/130776167/1843a67.pdfIn PDF document text
    • http://kupazu.marinashay.com/uploads/1/3/1/4/131455734/8452837.pdfIn PDF document text
    • http://files.paulsullivanleather.co.uk/uploads/1/3/1/4/131438069/309f879f0a30ad8.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/1/0428/3016/8230/files/75062723272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2094/2486/files/94462136729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/zasutoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/ximatefunovevuxoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/93370775160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6781/0726/files/basics_of_electrical_engineering_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5808/6559/files/cancer_de_mama_metastasis_pulmonar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/22424894945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8856/7706/files/fegojunolajo.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 7

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_off000078ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BA 5412 bytes
SHA-256: dedf403bca76c864a7dd27652e8d793d7549f329a48acd6cbe25db140fd2d149
font_01_sfnt_off00008afd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFD 9736 bytes
SHA-256: 3d89c0483bb52cedb3bc477495b07c31875dbaeea0c0b7c83773c5b7284df7e9

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