Malicious PDF — malware analysis report

Static analysis result for SHA-256 b287f0a2f381c173…

MALICIOUS

PDF

32.1 KB Created: 2020-08-18 17:13:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0de18d53170bd2e063d4ee0b30c8cd8 SHA-1: f174cee5be35671bcb06cfbbff796ca93618294d SHA-256: b287f0a2f381c1737f6edb77bc4614720432cc0ac699cae53cc5ed1042db8d4d
202 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link and a link farm. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=chef+ft+mr+p+music', which is identified as a malicious redirector. Additionally, numerous links to PDF files hosted on Shopify are present, suggesting a link farm designed to manipulate search engine results or distribute further malicious content. The presence of a 'download button' lure reinforces the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=chef+ft+mr+p+music In PDF document text
    • http://files.theloftviolinshop.com/uploads/1/3/0/9/130969938/gajuxoderetigiwakexu.pdfIn PDF document text
    • http://wojigas.correctyourconcrete.com/uploads/1/3/1/8/131856772/nevumiti-gojumiwovizuke-fexuwinasilo.pdfIn PDF document text
    • http://fekoxub.dirkmoses.com/uploads/1/3/0/7/130739297/9271049.pdfIn PDF document text
    • http://pozibu.stillwaterfiretower.com/uploads/1/3/0/7/130775118/90bf980865dfd0.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/1/0432/3262/4808/files/gikawamewezijutumiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1926/2363/files/donate_formal_wear_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/multiplication_worksheets_printable_grade_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3188/8021/files/43822268741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7916/2263/files/66701837331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2823/3885/files/xivakadipagerobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3235/4727/files/minor_arcana_meanings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5370/1525/files/deformation_of_the_crust_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3862/9270/files/awaken_the_giant_within_anthony_robbins_download.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 2

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_off000041b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41B6 4920 bytes
SHA-256: e6f363a9a6de02a781817174c1cd851e62fbaa2261607b1c82814f942496d9aa
font_01_sfnt_off0000524b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x524B 9944 bytes
SHA-256: 16c68b3d85f5de5757431158e09ec828d39eca7edfce70915c0b6714ef38e61b

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