Malicious PDF — malware analysis report

Static analysis result for SHA-256 03ecce08dcc73ce7…

MALICIOUS

PDF

39.9 KB Created: 2020-08-06 13:00:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 860fadb58bdf3f10c51bcf001b0a7b1e SHA-1: abcecfd27aa405e545207304e87d8afdd2da281a SHA-256: 03ecce08dcc73ce7857ff2212cbe49d1cb2f282bb2ba19bdfd42a374606ea83a
194 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at "https://ttraff.com/pify?keyword=british+council+games+pdf". This redirector is likely used to funnel victims to further malicious content, potentially a phishing page or malware download. The document body itself is heavily obfuscated but contains references to the redirector URL, suggesting an attempt to disguise its malicious nature. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a link farm or SEO manipulation tactic to increase visibility and clicks.

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+games+pdf In PDF document text
    • http://files.keyboards.es/uploads/1/3/1/6/131637876/batujav_defalazisa.pdfIn PDF document text
    • http://files.greentarafarm.com/uploads/1/3/2/7/132740418/zamanamulokuwexugure.pdfIn PDF document text
    • http://files.maxthemobileman.co.nz/uploads/1/3/0/9/130969426/afe9248.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/1/0440/3901/2502/files/3594042587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2456/9752/files/93215950367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7119/2732/files/fijokubefitibanigivef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4322/5751/files/54897523570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1285/files/52469345592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8100/7255/files/90096798047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9114/0512/files/cqb_training_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7058/6006/files/fomita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/botodegulesi.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7D 5616 bytes
SHA-256: 0344f62a91fac1d4d9e2e691c6f1c30a4a32c42b0f321130fb88997745740e4b
font_01_sfnt_off0000716e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716E 9780 bytes
SHA-256: 23049d214ae525ed371f3bba78a90321e66578225a93853f21c5e10a1df8d721