Malicious PDF — malware analysis report

Static analysis result for SHA-256 5940d9692ef6aa7e…

MALICIOUS

PDF

44.5 KB Created: 2020-08-05 08:50:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83d7cb8637ffe720a9a99734d3043f08 SHA-1: 70984c921fd458d56e86a2709e4d772ce452b11d SHA-256: 5940d9692ef6aa7efd3455bc2d916f77af6966a721a8e51c4cd8eb5dfed00e5a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'smooth criminal guitar tab pdf' and includes the malicious URL, suggesting a lure. The presence of multiple external PDF links, many hosted on Shopify, indicates a link farm strategy to distribute the malicious payload.

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=smooth+criminal+guitar+tab+pdf In PDF document text
    • http://files.pendulumalchemy.com/uploads/1/3/1/4/131437530/45ea34f116386cf.pdfIn PDF document text
    • http://files.bayardguitars.com/uploads/1/3/1/3/131379590/misawosovin_gifafodutafavo_xojadifovaxusi_zebupiwerofipos.pdfIn PDF document text
    • http://files.nicoledietze.com/uploads/1/3/1/4/131453076/ketulawi_vugepiju.pdfIn PDF document text
    • http://limaw.makersoverdreamers.com/uploads/1/3/1/4/131407469/lejutokutepu.pdfIn PDF document text
    • http://files.dermmedclinic.com/uploads/1/3/1/4/131437044/d092e6f31.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7478/1338/files/gopit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9489/1943/files/gisas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/jimulafipizedov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2391/7478/files/bewuxagin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/nuvavoduzavubowex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6490/1284/files/15859163784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/xijikokogududafewidob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2214/0070/files/download_admiralty_jurisdiction_procedure_rules_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/thomas_calculus_12th_edition_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5666/7551/files/xebomepemuvasib.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E0 5396 bytes
SHA-256: cf8126303b8fa43702f76ca432e1589edb320eff70e5c70512f8b9eea1ae8323
font_01_sfnt_off000069fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FA 14632 bytes
SHA-256: cdc269372c6db106a7fa03cc808b3b239972c4dee551e98e58f5f7c2ab18f590
font_02_sfnt_off00009743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9743 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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