Malicious PDF — malware analysis report

Static analysis result for SHA-256 9617b76ff8c273d7…

MALICIOUS

PDF

46.5 KB Created: 2020-09-18 19:00:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 100b770476e353f30dc41cf2d45d8ab8 SHA-1: 10fd71ddfcb4bdcf380e9ae4ebc0b8c1da7a70d7 SHA-256: 9617b76ff8c273d79695c70b6d0a4d3bc8cc429efbba98d2403ec58f5bf92b2d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links that direct users to a malicious redirector, disguised with keywords related to home improvement. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.club/wix?keyword=magic+tub+and+tile+refinishing+kit+paint+on. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of links pointing to external PDF files, likely part of a link farm to improve search engine ranking for malicious content. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this document.

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.club/wix?keyword=magic+tub+and+tile+refinishing+kit+paint+on In PDF document text
    • http://fabaramun.newspark901.org/uploads/1/3/1/3/131382700/6c6a6.pdfIn PDF document text
    • http://files.chattanoogabahai.org/uploads/1/3/1/4/131437457/donarexaromikiw.pdfIn PDF document text
    • http://files.thehealingplacecg.com/uploads/1/3/1/6/131606923/neligijugirowa-jatumomuku-fatasej.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/1/0438/1750/0834/files/wesorufamakulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/white_pages_new_zealand_wellington.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9747/3699/files/21240589893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6471/1575/files/voxad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6147/6504/files/38336739725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1087/files/nuduwojevukuvupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9950/3257/files/curriculum_development_bilbao.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7982/6589/files/96069988430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vazakiliduvapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3689/3599/files/hazard_and_risk_assessment_template.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 4

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_off0000752f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752F 5628 bytes
SHA-256: 4db7d9da1f2aeafd74f37f43742affc0ec9c99b6243200c894fb4b1aeccb4efb
font_01_sfnt_off00008851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8851 10580 bytes
SHA-256: ef8af82eb31867bf5ddb8695c69754d6c23ecd433bfaa53352d7922605f3ef03

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