Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfe7530e5df9caf2…

MALICIOUS

PDF

43.8 KB Created: 2020-07-28 12:49:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a9812ad39406047558747edf6683162e SHA-1: 6382404e5906ec93d316cd5a10839531baf6b0ca SHA-256: cfe7530e5df9caf204fdb77b29311684006e0b4c385b0929464a4680780258fb
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is designed to lead users to further malicious content. The document also features a link farm of SEO-optimized PDFs hosted on Shopify, indicating an attempt to broaden reach and potentially mask malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector and link farm attack pattern.

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=a+friend+like+me+piano+sheet+music In PDF document text
    • http://files.soundsfunny.net/uploads/1/3/0/9/130968956/risoporijuj_tovonopozi_pivafazida.pdfIn PDF document text
    • http://files.icttg.com/uploads/1/3/0/7/130739183/9915664.pdfIn PDF document text
    • http://files.sayyestothecake.com/uploads/1/3/2/7/132740778/tapavizer_wikos_zagiwujajiv.pdfIn PDF document text
    • http://files.johnwestlakeods.com/uploads/1/3/2/6/132681482/nowimawewixibetu.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/1/0433/6808/7711/files/62557003549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9236/1887/files/bozimudekazojozikovirivos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4174/3263/files/dudekozor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8062/3015/files/31755634265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0342/0570/files/jemonipori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6501/4437/files/gesitukoperumudedade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/lijumevir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5213/0716/files/tijetufifesamizusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0538/6657/files/ruzatajuburij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/farakalopofiruvuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9288/files/67983293224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5584/0422/files/95181644755.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_off00006c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C48 5332 bytes
SHA-256: 5bd0291d49300bfcf93a7524361b97fbe661ef6d11cd2742a69f148ddb43e4c2
font_01_sfnt_off00007e32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E32 10468 bytes
SHA-256: cb9cb961f01c4bb2c8f098959f3cca7d4b859e4c106d0a6bba549b3d09b8c2c8

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