Malicious PDF — malware analysis report

Static analysis result for SHA-256 417f4b46980bbf47…

MALICIOUS

PDF

47.8 KB Created: 2020-07-30 20:07:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75bf398852cda0627a8c2d3efdc62146 SHA-1: 3b72a823b191713597859b1120056d2f01dfd225 SHA-256: 417f4b46980bbf4731d57e33c1f030048544479ab9e759ad6f427c49341e887a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a document about intestinal absorption disorders. The file also exhibits characteristics of a link farm, with numerous embedded links pointing to various PDF files, likely for SEO manipulation or to distribute further malicious content. The presence of these elements strongly suggests a phishing or malicious redirection attempt.

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=trastornos+de+absorcion+intestinal+pdf In PDF document text
    • http://files.yegtrashtalk.com/uploads/1/3/0/8/130814043/4006774.pdfIn PDF document text
    • http://files.oregoncarehome.com/uploads/1/3/1/4/131453867/zamejarore_tafap_xigupepekefib.pdfIn PDF document text
    • http://files.thehubwoolavington.co.uk/uploads/1/3/1/6/131637273/mukuxu.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/1/0431/4641/2188/files/bimifap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kiwovanigefuminif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1634/8071/files/94990511445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5989/5717/files/pexot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/87695317777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mejiwevabefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3928/3608/files/solexosofesedavati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/83345874125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72438278193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6333/files/kakipiterafewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4511/7342/files/jalakimisojokobozujat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/wimibepol.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_off00007d3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3A 5024 bytes
SHA-256: b1b5b7288eb03c89079957b3f14c3bc846c06e551c135dc0d170d25927863e61
font_01_sfnt_off00008e4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4A 10456 bytes
SHA-256: 391dc5e4f2dd2bbdff50f0482b6b4bec38377c471b687607f687a703a8dc0a65

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