Malicious PDF — malware analysis report

Static analysis result for SHA-256 759c02d7b2819d5d…

MALICIOUS

PDF

47.7 KB Created: 2020-08-26 01:05:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17fb1023b4106e3b05c62119dcc73f3b SHA-1: 68686658574282c080ab3faf0538e7053025d241 SHA-256: 759c02d7b2819d5d010e6f57b219bf6d6c48b462f4ce5ab3268fa73eb62f644c
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious redirector, ttraff.com, which is used in SEO-based phishing campaigns. The document body and heuristics indicate a lure related to the British Council IELTS exam, suggesting a phishing attempt to trick users into clicking malicious links. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent.

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=british+council+ielts+general+training+reading In PDF document text
    • http://files.placeworksdesign.com/uploads/1/3/2/3/132303270/tituxepepilaru.pdfIn PDF document text
    • http://navew.taiwanhotelnews.com/uploads/1/3/0/8/130813714/pumenixuwifo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4843/4840/files/26615689788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2279/files/52730830949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/gevisosovanufuwadinuzur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2190/9662/files/12664530200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/baking_sheet_pizza_stone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/30943902286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9482/5376/files/think_like_a_man_watch_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006de4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE4 5132 bytes
SHA-256: d841adf5170acf38030ec998520254603a9a7f5312c83bd893a3490a4399f8b2
font_01_sfnt_off00007f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4A 10764 bytes
SHA-256: ed3afa9625bda61ca43ace532a8a7970b1005fe245587fa744bfec183bb788df
font_02_sfnt_off0000a3c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3C5 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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