Malicious PDF — malware analysis report

Static analysis result for SHA-256 27174961f92bc5d8…

MALICIOUS

PDF

32.4 KB Created: 2020-08-17 07:28:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e233e9d346ce4cf64848e509d087b44 SHA-1: 2c6de386407eb800310ce1378a62f9a76f499854 SHA-256: 27174961f92bc5d8f229f5949baf51a7ca69eccfec9d7c19d1448033b9f3266f
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a heuristic identifying a PDF link farm and another flagging a malicious redirector. The document body, though partially corrupted, contains text related to a safety data sheet and includes the malicious URL. The primary malicious URL, https://ttraff.ru/pify?keyword=calcium+hypochlorite+safety+data+sheet+uk, is likely used to redirect the user to a secondary malicious site. The presence of numerous links, many hosted on Shopify, suggests an attempt to disguise malicious activity within a large volume of seemingly benign 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=calcium+hypochlorite+safety+data+sheet+uk In PDF document text
    • http://keraxez.dchobbitleague.com/uploads/1/3/0/7/130739573/fupivefodepovitojaf.pdfIn PDF document text
    • http://files.ayrtherapyandconsultancy.com/uploads/1/3/0/7/130776611/gejitoxobipe.pdfIn PDF document text
    • http://files.rripmusic.com/uploads/1/3/2/6/132681992/bfe96f7ab4c35.pdfIn PDF document text
    • http://files.sunnysidesymphony.org/uploads/1/3/0/8/130814666/kisigegis.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/1/0432/8272/7067/files/busidurerodig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/fantastic_mr_fox_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/95859520152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5335/0053/files/certificado_de_origen_estados_unidos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8009/5646/files/66599456244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9114/0510/files/jofegitodepafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8683/0998/files/7219836754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/central_budget_2020_20_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/wobubejotaporivesif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7115/8949/files/namoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/pdf_negritude_movement.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_off000041b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41B0 5464 bytes
SHA-256: dd23f6a3c0b04e5c358e17bf616a565516b01d9bee1aec0f37ed0c91e55e552c
font_01_sfnt_off00005427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5427 9500 bytes
SHA-256: 6dfa68adf59a4bef277785bd9b212be8467fb46003e6316c4170a23c124769bb

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