Malicious PDF — malware analysis report

Static analysis result for SHA-256 7718e138c283298e…

MALICIOUS

PDF

39.5 KB Created: 2020-08-23 00:07:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e78488740e75e174f6f03c869ee9d32 SHA-1: 892fb7c9e42fa29f7c02329d1a6eaceee9fc8c1b SHA-256: 7718e138c283298e4bd3b93979a9c896967bf9c5cc52eaade4300c37ba445a0b
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The primary redirector URL, 'https://ttraff.cc/pify?keyword=apache+tomcat+6+64+bit+free', is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users into downloading software or other content from a malicious source. No scripts were extracted, but the presence of numerous external links points to a downloader or phishing campaign.

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=apache+tomcat+6+64+bit+free In PDF document text
    • http://files.battambangparish.org/uploads/1/3/2/6/132681002/d767baf407e6.pdfIn PDF document text
    • http://kijibew.fhpsc.ca/uploads/1/3/1/6/131637036/vovubepa.pdfIn PDF document text
    • http://files.okusag.com/uploads/1/3/1/3/131379990/jadezoj.pdfIn PDF document text
    • http://files.cbmaspeth.com/uploads/1/3/0/7/130775260/lolinexikivogu-sutuzefowegerop-bilem.pdfIn PDF document text
    • http://files.daniellelbeattymoodyphd.org/uploads/1/3/0/8/130815277/5483628.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/1/0429/9603/9833/files/waxonogibokejifutorerede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1966/5561/files/juvasuvilafimeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1070/1981/files/livro_adriana_sant_anna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0876/0742/files/apache_spark_scala_interview_questions_shyam_mallesh_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5624/1557/files/96402497739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9127/0563/files/best_sites_to_movies_on_laptop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2315/5878/files/95271973229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3444/6746/files/13500759381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7650/1147/files/6802166825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5013/files/advanced_javascript_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6409/2822/files/xowobifemi.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_off00005d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D18 5416 bytes
SHA-256: 7b10d60415bb674c76c774ddad0d4ff0347e894a4c2e42459fd838146e1d2fc9
font_01_sfnt_off00006f63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F63 9912 bytes
SHA-256: b398dc23053b09623eaba014339f0d77b0135a4e56f78f5935657adb7d24e175

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