Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c8ea56c05f5d75b…

MALICIOUS

PDF

40.4 KB Created: 2020-08-16 00:53:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29854c7c43aefe3cdc2d47903e38f648 SHA-1: 3cbe3b583047a7d05ac7c0d23a36b646f9fe9dd7 SHA-256: 9c8ea56c05f5d75b1dfd98001c076f64de3d891e7349a713cf957ae7211c2cb8
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The document body contains the URL 'https://ttraff.com/pify?keyword=interpretive+communication+print+texts+answers', which is a known malicious redirector, and numerous other links pointing to PDFs hosted on Shopify and other domains. This suggests a campaign focused on distributing content through SEO-manipulated PDFs or redirecting users to malicious sites.

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=interpretive+communication+print+texts+answers In PDF document text
    • http://files.luxvibes.shop/uploads/1/3/1/3/131381422/ratubiruvitiv.pdfIn PDF document text
    • http://files.polarisportfolios.com/uploads/1/3/0/7/130739919/wemazorenedipakuwa.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/1/0433/8450/4474/files/arch_models_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1153/7053/files/92927913745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/84521363073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71409998288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/7355/6900/files/carbuncle_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/rodezoduwowoliwibetoxufij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/99868899463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2002/4989/files/american_movies_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0875/3827/files/didadijomoton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8706/7291/files/adverbial_clauses_exercises_advanced.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/roxugoxesize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6354/1917/files/17971379232.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 4

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_off00006094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6094 5204 bytes
SHA-256: d64f96f8147693901828b1ef84a7dd8fca9e9ef87e57d786e25990db6885c2dc
font_01_sfnt_off00007236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7236 10188 bytes
SHA-256: 5f5f64ba050c331101f2ba952167bdd2dbca5639c4114a5ee15f737e87209d9c

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