Malicious PDF — malware analysis report

Static analysis result for SHA-256 433c8943ecd22bde…

MALICIOUS

PDF

32.1 KB Created: 2020-09-17 22:55:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9dd3caaff0fcf38841afa123714bdbb SHA-1: 4a0840fe67a2e1aa8bf0e8ce35f229a67982ca00 SHA-256: 433c8943ecd22bdec5108ac34a78b86492c38c33991ffb2b5f184c25e893dd45
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with critical heuristics identifying it as a malicious redirector and a link farm. The document body, though partially corrupted, contains text suggesting it is a 'Mettler toledo panther technical manual', which is likely a lure to encourage clicks on the malicious URLs. The primary malicious URL identified is https://ttraff.me/wix?keyword=mettler+toledo+panther+technical+manual.

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.me/wix?keyword=mettler+toledo+panther+technical+manual In PDF document text
    • http://nuladefuk.smoothfocus.org/uploads/1/3/1/6/131606248/5344c.pdfIn PDF document text
    • http://files.nothingtotriflewith.com/uploads/1/3/1/4/131407469/zapoxafodirapa_guvoju_fenamisabup.pdfIn PDF document text
    • http://detin.johnabale.com/uploads/1/3/0/7/130775982/c153205.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4af72dcd-994d-445d-97c0-e8c823f0f3e5.filesusr.com/ugd/f2c1dc_2de9953324af4914a4665156502ee51d.pdf?index=trueIn PDF document text
    • https://fed54697-8bce-4d40-a33c-96d4845c1c34.filesusr.com/ugd/a91264_92cd768757d54f7c85d3b76bacbb7290.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1460/2401/files/97535249791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7904/files/rowopojopukosobalorugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5913/2054/files/financial_literacy_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4488/7966/files/conductores_y_aislantes_fisica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2617/7438/files/platform_browser_private___is_not_defined.pdfIn PDF document text
    • https://06cb195c-c031-47e5-a1ad-81478958af2d.filesusr.com/ugd/7603ae_6a475e9f8706465892bd12455600e06a.pdf?index=trueIn PDF document text
    • https://35e654e6-95b8-4000-a533-41cd7be0c966.filesusr.com/ugd/ac1638_0326b23974964d5087cef40184f7f007.pdf?index=trueIn 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
🗂 Part of campaign: cosmo-ufes.org 4 samples

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_off00004198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4198 5140 bytes
SHA-256: 6fc553ab91552ee7139d03b5ad259aeeaa1434c12d65f65228187f24cafb07a7
font_01_sfnt_off000052f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52F2 9564 bytes
SHA-256: 954353cfdf48243bd1af651b617e5f88bc976f0dc309eb526a186b88a553fca3

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