Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fee9f73b930b76e…

MALICIOUS

PDF

48.4 KB Created: 2020-08-09 17:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4df0333f82de7cd1a694c899047b52c7 SHA-1: 457baf454e0cd5aec82543c36340a2ce56da72d3 SHA-256: 6fee9f73b930b76e173ec35735018bc4bbdac73b1aecd7d50da73ea16595921e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though obfuscated, contains the same malicious URL, suggesting a phishing or scam attempt. The presence of many links to external PDFs, some hosted on Shopify, indicates a link farm or SEO manipulation tactic to distribute malicious 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=abdominal+exercises+pdf In PDF document text
    • http://giredov.ladysweetcakes.com/uploads/1/3/1/3/131383483/vunokun_tovutife_meramotitiwe.pdfIn PDF document text
    • http://files.farmcounty.com/uploads/1/3/1/3/131398351/gonibitivapela-volutujejaguw-ruweridipog.pdfIn PDF document text
    • http://files.bristoldentalsociety.co.uk/uploads/1/3/2/6/132695372/9582018.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/1/0429/6101/0842/files/fufowovopur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7841/8583/files/6887990373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/49388976041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2881/4741/files/seveze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/43270076763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/electromagnetic_induction_and_alternating_current_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3849/9235/files/pukovafisajefewabar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4436/files/tejoxewatijenugesivitadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/wofedamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/33659159225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/59499798082.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 6

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_off00007f1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1F 5496 bytes
SHA-256: 22004a175131cbc45772a6d862d7c038468bf5d371f465b8e1846c591f48e22a
font_01_sfnt_off000091b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91B6 10440 bytes
SHA-256: 2964a5738a0467915ac47486721d5c807308cbb35af5a71a17740dd00e8d2681

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