Malicious PDF — malware analysis report

Static analysis result for SHA-256 614be1414ac11243…

MALICIOUS

PDF

50.1 KB Created: 2020-08-10 23:18:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d12faa3f5b49cfd3e35567e87728788c SHA-1: 5310a297ed96c58de58d06245d54000f846bab2c SHA-256: 614be1414ac11243c95825e0ef03e6e888fc74e591282f7c2774115637615dc7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to a malicious site. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's part of a link farm designed for SEO manipulation to distribute malware.

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.ru/pify?keyword=construction+company+introduction+letter+sample+pdf In PDF document text
    • http://files.texasdispro.com/uploads/1/3/2/6/132681863/vukizi.pdfIn PDF document text
    • http://files.ikaruscoffee.co.nz/uploads/1/3/1/4/131407135/mapufatuboletida.pdfIn PDF document text
    • http://files.tlkpowdercoatingmalaysia.com/uploads/1/3/2/7/132740723/gikogikugobibi-foxizan-vuleripagufe-tekoguvana.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/1/0431/9143/5422/files/84535734182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2504/6431/files/convertisseur_youtube_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sabam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/nurebabove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6775/8999/files/42277675940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/wagovopiposikeroses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/datofugilasififuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7599/files/lixugezawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/dinuvokijemujuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7731/0366/files/bwv_974_adagio_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8658/3710/files/45867792575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7679/7081/files/bebeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3684/3933/files/vubugajejalafa.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_off00007729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7729 5308 bytes
SHA-256: c5007a48f7c6a55d3d773963da2daa1d7232e72f2e2869c16e8e79cf187bd300
font_01_sfnt_off00008924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8924 16076 bytes
SHA-256: 3ac040662bf2215010cd82ab80ada9469ff87873dc0973457778ad748b93e5a0

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