Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff05b045a2167f1…

MALICIOUS

PDF

38.3 KB Created: 2020-08-08 15:55:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64b0f494f01b9abf2938358a5b2f2902 SHA-1: 3682c8f0d23fe0b51534bd48ab9770cff1e22ab0 SHA-256: 7ff05b045a2167f10fae5724a649ad75bf1da148210c8a1953167a271cc57744
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. This redirector, 'https://ttraff.com/pify?keyword=preposition+of+place+worksheet+pdf+british+council', is designed to lure users into downloading further malicious content, likely by disguising it as a legitimate worksheet. The PDF also hosts a large number of external links, many pointing to Shopify, suggesting an attempt to create a link farm for SEO manipulation or to host payloads.

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=preposition+of+place+worksheet+pdf+british+council In PDF document text
    • http://files.enigmashetlandponystud.com/uploads/1/3/1/0/131070483/4779006.pdfIn PDF document text
    • http://pewusus.petiakostadinova.net/uploads/1/3/0/7/130738799/0a4846656456f9.pdfIn PDF document text
    • http://mafipatel.berrycommunitychurch.org/uploads/1/3/0/7/130739415/2217668.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/1/0433/7231/4778/files/wijabix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1994/3579/files/maxesiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4234/0007/files/69079091067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/pdf_to_word_converter_nitro_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/widewakosekoxuras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4621/3544/files/aerodynamics_for_naval_aviators_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6624/4766/files/14450971493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4100/5480/files/41648345193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7824/6815/files/16667838523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/wakabetajonegadop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8196/5474/files/zigibegoxi.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 3

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_off000057a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57A5 5540 bytes
SHA-256: 3f8ebb21c876668647ef619d8d2868d3d930efbf8e55383bf40ab50135adaf8e
font_01_sfnt_off00006a7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7E 9888 bytes
SHA-256: 61e1cda96dc4320a123882c11798e0c063fb2d5beeb5479a89aff32c5d3b0d9b

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