Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ebd3869719f7e6c…

MALICIOUS

PDF

54.5 KB Created: 2020-08-02 18:40:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81d093ce11fa10e14fc89151151119d5 SHA-1: 3f8429883a1115e50fff4f05cf982dde57069bda SHA-256: 6ebd3869719f7e6c9aeabf706f9620708e94e99f69a4063dd1a0690c84e64e88
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to an SEO redirector farm, specifically 'ttraff.ru'. This indicates a phishing or scam attempt disguised as a document. The ML classifier strongly flagged this PDF as malicious, and heuristics confirm it's a redirector link farm designed to lead users to potentially harmful content.

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=the+next+millionaire+next+door+pdf In PDF document text
    • http://files.universitytools.org/uploads/1/3/0/7/130740183/miruzogil.pdfIn PDF document text
    • http://files.rusticrevivalco.com/uploads/1/3/0/8/130874010/jebozidewomovejejusa.pdfIn PDF document text
    • http://files.vmplf.com/uploads/1/3/1/6/131606818/aef02d7.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/1/0437/2335/8358/files/jimukipolidofakole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4138/2812/files/defudabatojavori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/lipesaros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7657/3601/files/34627043707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1980/4578/files/waxewevuxukadog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2806/2103/files/42225972338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8790/4422/files/70514892934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/57249504419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9503/7854/files/7024128532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3789/1480/files/vestirse_conjugation_preterite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5589/6983/files/fobetamapijikunanoka.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 7

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_off0000979c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x979C 5120 bytes
SHA-256: 2a0b79d803e077c319ae3e5799300413fd21e9b0701ffec7066264577d9a2e6d
font_01_sfnt_off0000a8df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8DF 10536 bytes
SHA-256: 9f5045209012c4b4f4a354d0983c071d259910114c8638e1909f2e65a7cf2e15

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