Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f07397e72b055c…

MALICIOUS

PDF

44.2 KB Created: 2020-08-14 06:53:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b82027ab72d570533ceebfeae42d1d4 SHA-1: 7a6333923b91b50845377d6546c73d9b681f8ea6 SHA-256: 17f07397e72b055c86a1917447d7648039e92c8624b54ae57166b2af19533660
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting it is an annual report, likely a lure to encourage clicks. The primary redirector URL is https://ttraff.ru/pify?keyword=bruynzeel+storage+systems+annual+report, which is flagged as malicious. The presence of many links to external PDFs, including benign ones on Shopify, suggests 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=bruynzeel+storage+systems+annual+report In PDF document text
    • http://files.vinoorewa.com/uploads/1/3/1/8/131871871/ronoxu-piwune-wavus-podizowe.pdfIn PDF document text
    • http://waguzusi.emmihilger.com/uploads/1/3/0/7/130774993/najipufixuxosudupe.pdfIn PDF document text
    • http://files.immersionchestermere.org/uploads/1/3/0/7/130775126/f2aeca1b.pdfIn PDF document text
    • http://files.rivercityfoursquarechurch.com/uploads/1/3/0/8/130874612/gomilan.pdfIn PDF document text
    • http://files.kmcandies.com/uploads/1/3/1/4/131407111/3091942.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/1/0433/8099/8302/files/84417039992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9253/1617/files/april_showers_proleter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7749/1105/files/fobowibukanonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/kapiwuxisonagap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/memowupet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3394/2423/files/soxevemuguvibik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0392/6952/files/37040753909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/tuvepubakom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2938/1791/files/63397781475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/2643417847.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_off00006ec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC3 5340 bytes
SHA-256: 5561b7b5e9df96595cbc3588ca0ead616f9abd2f3cfb090172f487600a2c4ab5
font_01_sfnt_off000080ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EE 10116 bytes
SHA-256: 61e3afc151b381593217046a885208d1c5df28d88677d0ec07bed6e8f542ba6c

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