Malicious PDF — malware analysis report

Static analysis result for SHA-256 175492cce994a3e0…

MALICIOUS

PDF

68.8 KB Created: 2020-07-31 09:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 457e307629cb4cc72646e8ba90ec8259 SHA-1: cd1d84e06bdff7274e903295ae6c242151d41be6 SHA-256: 175492cce994a3e0d6cd4fa10623e5ee27c36f24791fde751c52be1504a3a625
194 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector service (ttraff.ru) disguised as a free download for 'angina symptoms'. This indicates a phishing or malware distribution attempt. The presence of numerous links to external PDFs, including benign ones on Shopify, suggests an attempt to create a link farm for SEO manipulation or to obscure the malicious redirector.

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=angina+symptoms+pdf In PDF document text
    • http://files.brookekellyband.com/uploads/1/3/1/4/131452733/bulilojefu.pdfIn PDF document text
    • http://files.carlya2zmusic.com/uploads/1/3/2/6/132682883/kabuxaxado.pdfIn PDF document text
    • http://files.cflhfes.com/uploads/1/3/1/4/131407469/kibaxutup-xonaxawa-xurez.pdfIn PDF document text
    • http://files.mobile-mower-fix.co.uk/uploads/1/3/1/4/131453453/9077981.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/1/0431/6702/3259/files/musavutuzisavopilifani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/wesasitasefiranufizegag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/pulasoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4151/3894/files/39004730149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/52223078638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5327/6574/files/30014500009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7645/files/bedodatolaxaxomiguzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1715/0357/files/37336961841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/56122383060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6125/5073/files/74978118345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/jebarinedujowikewarari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/tesan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/monogekabixelejilenoga.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_off0000cf0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0A 4992 bytes
SHA-256: 9f807b1b9c06ba4888cb0767120c352c3e8198c0611abb0717afb733737849fb
font_01_sfnt_off0000dff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF6 11104 bytes
SHA-256: 7fa63518d7e25bb95031bf323774a24833517bc83381f92bceac7d48ee7478be

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