Malicious PDF — malware analysis report

Static analysis result for SHA-256 748add766283585a…

MALICIOUS

PDF

442.3 KB Created: 2020-08-14 01:52:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e52d3c634e273a1e574f90b5b10eb9bb SHA-1: 9774d78635962df3f70deee592d48c7465923e9c SHA-256: 748add766283585a645f35c887634cc8f8c970a3da3b1023830dd34b3361fda8
142 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector, specifically linking to 'ttraff.com' with a keyword suggesting a lure for cost management reporting. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the finding. The primary attack pattern involves luring the user via a seemingly relevant document to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cost+management+reporting+meaning In PDF document text
    • http://povakadod.katiemcbridephd.com/uploads/1/3/0/7/130738950/bd8ffe02e.pdfIn PDF document text
    • http://files.ozpeleg.com/uploads/1/3/0/8/130874238/butosofozejaz.pdfIn PDF document text
    • http://siwowor.charlestonmanufacturingcenter.com/uploads/1/3/2/6/132695471/3a9c1fb745c0a.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/1/0428/4986/1791/files/40660144989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0319/7078/files/53471337374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9336/0801/files/30639939241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/30289315174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/jawubajefonuzatavutusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9087/0423/files/uk_citizenship_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9767/0303/files/nudotebojelolusuwazebaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9007/6057/files/bread_and_tulips_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7707/5108/files/92301206372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/deep_breathing_techniques_for_anxiety.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00067b37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B37 5012 bytes
SHA-256: c27f2c2924f3cc544630a3874315f4db824ab430847f0ad5001af55835f1c074
font_01_sfnt_off00068c28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C28 17760 bytes
SHA-256: 602ef8758aa88032ef799b22e6ae218222a9be9b1c51cc116ea29b03351eb13d
font_02_sfnt_off0006c340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C340 16148 bytes
SHA-256: aabbb95e4258a1bccfe6759090a0a8b97a33e8154131110566ffb2eaa8fdb080

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