Malicious PDF — malware analysis report

Static analysis result for SHA-256 76c0ca508e362b3a…

MALICIOUS

PDF

120.7 KB Created: 2020-08-04 21:39:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b52698013542a6989c029ed91c6257b SHA-1: 32a2b43886ae210d9e8186cac359d9d8f74ce0c7 SHA-256: 76c0ca508e362b3a146ae426c4580b0fd7ae22c71e2692d0aea15146c5c63ab5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to a lure for a free download. The primary malicious URL, https://ttraff.com/pify?keyword=curso+esoterico+de+tarot+e+cabala+pdf, is used to redirect users to potentially harmful content. The ML classifier strongly supports the malicious nature of this PDF.

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=curso+esoterico+de+tarot+e+cabala+pdf In PDF document text
    • http://dewosuvam.evansmstheatre.com/uploads/1/3/1/4/131411896/6bb08b00772c.pdfIn PDF document text
    • http://files.dpm-landscaping.com/uploads/1/3/2/7/132740951/viwakitawatapo.pdfIn PDF document text
    • http://files.mauiwaenaband.org/uploads/1/3/1/8/131871569/b3d8ee743e0a.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/1/0433/9436/7649/files/vabizazabatudunomiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/66190123428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2737/2955/files/82475245895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/71197446392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/futazufupisigizev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9602/0894/files/vixiwikowigovabelel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5591/files/4890484546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0290/4222/files/44326723046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/48177860527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4295/5676/files/66810436789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8163/7794/files/62006746271.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 2

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_off00019f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19F81 5196 bytes
SHA-256: 902ac3d9a8491178f68f9367dfb7237e3244e1ae4b62987cbb7ac852189c2cc2
font_01_sfnt_off0001b130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B130 10932 bytes
SHA-256: d15de750c9fb0b0f752d3ad9fd91a2625f65c99293c46195e3193ad22b42cc02

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