Malicious PDF — malware analysis report

Static analysis result for SHA-256 1500e9e56dcea6a0…

MALICIOUS

PDF

41.2 KB Created: 2020-08-05 15:09:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4af375570fe6f80ea2aa30c5a4fa3b3 SHA-1: dec0e673142aa8bb1ca4ec70acba396ae5beb3a7 SHA-256: 1500e9e56dcea6a06f535cd0b2ba114956b09f44b8dceb8e58b9ea130e294b13
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a redirector infrastructure associated with malicious activity. The document body, though heavily obfuscated, contains URLs that are likely intended to lure users to malicious sites, potentially for phishing or malware distribution. The ML classifier 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.ru/pify?keyword=las+clases+sociales+en+mexico+pdf In PDF document text
    • http://files.oldburyswimmingandtriathlonclub.co.uk/uploads/1/3/1/3/131384552/rekulirutigiwu_lunabig.pdfIn PDF document text
    • http://files.bunioncenternyc.com/uploads/1/3/0/8/130874520/1ead5bea11f2f9.pdfIn PDF document text
    • http://files.greenphilsinc.com/uploads/1/3/0/7/130775308/6779223.pdfIn PDF document text
    • http://files.docuprodrawings.com/uploads/1/3/1/4/131406202/3788005.pdfIn PDF document text
    • http://files.galwaylocaltourist.com/uploads/1/3/0/7/130739119/xizudimuperapu.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/1/0440/5926/3141/files/nolulok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9724/4316/files/narikarutagesisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/c_language_interview_questions_and_answers_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/bkat_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6997/1363/files/zajafisir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/boromikojimunagewolazaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/10653155423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1628/0475/files/json_file_comments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7240/4118/files/juzofewupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7691/9194/files/lugidux.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_off000060bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BD 5212 bytes
SHA-256: 0b1f0677e668749c68725686f52ff98444b3d2a5b80c2c8b821a5f3cdf11bce7
font_01_sfnt_off00007275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7275 11032 bytes
SHA-256: a46a7736983401037091cd9be548a0a3159bb9f18040c81fc12b6a44fe7d273d

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