Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9d134929593c15f…

MALICIOUS

PDF

41.1 KB Created: 2020-07-29 08:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 08ff11000954ae63ab2f4fd01979ed31 SHA-1: 0d9430204349050d86fc8cdfc05e3b37934adb15 SHA-256: a9d134929593c15f083025f53c2f2e0bfa4570acbb1b7e4070c8d0069faeefec
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'Louis vuitton shoe sizing guide'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content or manipulate search engine results. The ML classifier also strongly flagged this PDF as malicious.

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=louis+vuitton+shoe+sizing+guide In PDF document text
    • http://files.foodbiomedicalscience.com/uploads/1/3/0/7/130775129/risuxekupat.pdfIn PDF document text
    • http://files.jeffersonhumane.org/uploads/1/3/1/0/131070820/bunajexer.pdfIn PDF document text
    • http://files.wraparazzi.org/uploads/1/3/1/3/131379718/d60621af.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/1/0429/9027/2675/files/jonubiterilufomajevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4396/3548/files/22738814047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/balokax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4555/2277/files/metozevaxuromelobasiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/63944239800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/51700995770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8644/4699/files/kuxefonedovikigafibar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5692/2777/files/somajemubazoponowado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/50723116601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1958/3138/files/fenusajitov.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_off00005dcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCB 4680 bytes
SHA-256: 38235b6037646a93839f8245d126b7f94a66e9d0aff33bb5812ce48665084194
font_01_sfnt_off00006dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC4 13028 bytes
SHA-256: f366898582fbf8de256b8377f716c737ade1982b73706faaae38e5a7945de9bc

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