Malicious PDF — malware analysis report

Static analysis result for SHA-256 a66e9554a0df7afc…

MALICIOUS

PDF

48.5 KB Created: 2020-08-02 13:22:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a6a7339a9025c4e672d6aa9017440d4 SHA-1: 756fe1e9c06447f6ec608e69683c621c0216888a SHA-256: a66e9554a0df7afcbb93bd92e1be7761293cf1b0100ba2f72fe0b63454124764
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic indicates that the PDF links to a known malicious redirector infrastructure via the URL https://ttraff.com/pify?keyword=ordeal+by+cheque+pdf. The document body, though heavily obfuscated, contains the text 'Ordeal by cheque pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site.

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=ordeal+by+cheque+pdf In PDF document text
    • http://files.abroaddownunder.com/uploads/1/3/0/8/130814784/c528f3adcfe.pdfIn PDF document text
    • http://files.hairloungeltd.co.uk/uploads/1/3/0/7/130775506/8531384.pdfIn PDF document text
    • http://files.litchfieldgardenclub.org/uploads/1/3/1/8/131856072/ximegado.pdfIn PDF document text
    • http://files.canadamt.com/uploads/1/3/1/4/131409574/5612647.pdfIn PDF document text
    • http://files.3riversmuseum.com/uploads/1/3/0/7/130739227/derijirafijugu-vulenu.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/1/0431/5355/5624/files/gatuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8597/1110/files/30851783772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8165/3655/files/82281907049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4179/1895/files/refiseragipezuvalufasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/nefovutejixatitesusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4275/7029/files/72340444422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6129/4757/files/tedegevix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6262/4405/files/35742469788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/88180056276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8032/6051/files/72010963793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1263/6322/files/92197473871.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_off00007f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6A 5460 bytes
SHA-256: a26e17341e74e3f4ed7e068c431fde0770880713fe4b8693207b652997f39c69
font_01_sfnt_off000091f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F1 10404 bytes
SHA-256: ddedeb9a9cbeecd9696e1e38aa6a1e9e115d1ee0cd614739491f69537d41e975

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