Malicious PDF — malware analysis report

Static analysis result for SHA-256 1759ce80c29582d7…

MALICIOUS

PDF

44.2 KB Created: 2020-08-07 06:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 497e075337bd3d79ba4cf36b075f5096 SHA-1: ea8ff67c348d7171a6f906eda382bee6e2e8e8f2 SHA-256: 1759ce80c29582d70dbdde7038878ae929f5578f2d6f24fc000b289d15e1d728
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=the+apology+of+socrates+pdf', which is also present in the extracted URLs and flagged by heuristics as a malicious redirector. This suggests the PDF is designed to trick users into clicking a link that leads to malicious infrastructure, likely for phishing or malware distribution.

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=the+apology+of+socrates+pdf In PDF document text
    • http://files.klineglazeservice.com/uploads/1/3/0/7/130775916/motunaxujotudat.pdfIn PDF document text
    • http://files.renaissancevitality.com/uploads/1/3/2/6/132683014/jefuzop_zegilunaligep.pdfIn PDF document text
    • http://bikixaba.mpspto.com/uploads/1/3/2/6/132696212/xerujodatajopol-kuzol-rawubeginaw-xiduzedon.pdfIn PDF document text
    • http://files.dirtyharryserotics.com/uploads/1/3/1/0/131069819/8a5670.pdfIn PDF document text
    • http://files.cork49gv.com/uploads/1/3/0/7/130775350/7871081.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/1/0432/5382/5694/files/83245584911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6664/9750/files/minecraft_crash_log.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4356/1384/files/kogebavogimuzidumomaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/ginukiruranerevok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7238/files/75690967976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/25115588407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1087/2728/files/three_column_cash_book_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7665/8087/files/como_crear_base_de_datos_en_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8601/0776/files/wujeseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/jurnal_kista_endometriosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9241/0525/files/tuberculosis_diagnosis.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_off00006e1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1D 5468 bytes
SHA-256: 2cb5e8b6f7cc73df48813a85a097e0ff762bc8350a45b91a1e72a6a60ee460d1
font_01_sfnt_off000080c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C1 10268 bytes
SHA-256: ba7604520ae8cfaf5a47bdb8cb1790c7676302bf4b638a5ab23c2665bee62842

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