Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e9f8e1699a69567…

MALICIOUS

PDF

41.2 KB Created: 2020-08-11 07:15:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a5b203fa34023b14d03be84828f75d8 SHA-1: 33815cddf464c5e215fb347e4eca32222f63425f SHA-256: 5e9f8e1699a69567047644a9841a3b8d7294bfdfd84148b15dd1ad49cd08ba06
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service that ultimately leads to malicious content, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL that is also present in the heuristics and IOCs, suggesting a lure for users to click on potentially harmful links. The ML classifier strongly supports the malicious nature of this PDF.

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.com/pify?keyword=business+opportunities+in+kenya+for+youth+pdf In PDF document text
    • http://files.captredentertainment.com/uploads/1/3/2/7/132740399/fc571314b71947.pdfIn PDF document text
    • http://kolojebak.pottawattamiecountydemocrats.com/uploads/1/3/1/4/131452883/gikamiluda-zomobedogu.pdfIn PDF document text
    • http://files.delicatetouchhealingarts.com/uploads/1/3/1/4/131406435/3103191.pdfIn PDF document text
    • http://files.christianchildrensentertainment.com/uploads/1/3/1/3/131398308/7604517.pdfIn PDF document text
    • http://files.beautifuleggsbyjane.com/uploads/1/3/2/7/132740997/278479.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/1/0430/0495/2735/files/15850573898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87899810879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0601/7185/files/dukojimevasawem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/37663520035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9350/5688/files/77223115730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4764/1510/files/defupovagulenugizodevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7504/2457/files/luvibigubotujuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/bixisulojitamodoraveli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1712/3493/files/kirchhoff_s_current_law_example_problems_with_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/bugegudodagoramaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1741/8405/files/ordinal_numbers_1_100_exercises.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_off000062af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AF 5312 bytes
SHA-256: c557c3a9f1aa86094b21b5f43e1e9f6ad0389d014c79d9bb150a5bab82624c58
font_01_sfnt_off000074c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C0 10656 bytes
SHA-256: 6518e47c499a76dcbe2f53c773803012b1e88f1c8cd982805d3ecb3d5c118755

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