Malicious PDF — malware analysis report

Static analysis result for SHA-256 116299225cf2434e…

MALICIOUS

PDF

51.3 KB Created: 2020-11-09 17:11:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4784a2c725b1413a28c5af511cf2e62e SHA-1: 12f361995efb6b9c067170457b16e7ea82e2a304 SHA-256: 116299225cf2434ed1e28ce37fb765ee6fb96d493cfde7820078476766e41927
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains an embedded URL that redirects to a suspicious domain, disguised with a lure related to IELTS essay topics. The ML classifier strongly indicates maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site, likely for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/123?keyword=problem+and+solution+essay+ielts PDF link annotation
    • https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/vivis_mozirisamewo_xolijex_panulurebu.pdfIn PDF document text
    • https://konanofekevofi.weebly.com/uploads/1/3/4/3/134367310/wepidupev.pdfIn PDF document text
    • https://suxokigivulumu.weebly.com/uploads/1/3/4/4/134479742/vabenuwerivedit.pdfIn PDF document text
    • https://fisizupesaxog.weebly.com/uploads/1/3/1/6/131636899/sulumidij_joniko_rovufasazomu_fajoxez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c0c6650-2dd3-4964-8346-225f591d50e2/absalom_absalom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3659e8a7-7362-4aad-8037-163773b5ec8d/86672251231.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/fobetenubapajus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c8bd497-1d1c-4f0c-aa01-00982150b435/35493466454.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9215f55-c00f-4ad6-9cd0-0450878b8ca8/36912673365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f31f7451-f861-4438-be43-e148172ed869/7134687379.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d99c6b1c-bcf1-435f-9da8-be0b44d068d7/31326122174.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_off00008bc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC4 5216 bytes
SHA-256: 50336464652d75af386ba633a1c37e3596737c8668a9ec2810412ebf11b53395
font_01_sfnt_off00009d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D62 10212 bytes
SHA-256: 5855fe49065914ecb1289cb63d6837212a3323371a0ad3411586baba210552a0

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