Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f7aa15bdece912…

MALICIOUS

PDF

76.2 KB Created: 2021-03-29 22:25:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 545985c1faba169905724dc4ce884015 SHA-1: c8ecb50a38238ba1ee8a4e1b1a4fcf9d8e44b89b SHA-256: d4f7aa15bdece912163750583c8be2e212a5c18bdc55d00074a9009e440f489d
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains a lure related to 'pork rub for pulled pork' and utilizes an SEO redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the nature of the heuristics point towards a malicious document designed to trick users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/wix?keyword=pork+rub+for+pulled+pork PDF link annotation
    • https://cdn.sqhk.co/juvebuzizej/jgOifcQ/sudoku_6x6_medium_printable.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453743/normal_6028e1e59dbb0.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/jexiajI/political_lobbying_definition_economics.pdfIn PDF document text
    • http://jemaxawiju.22web.org/kapurakakuvamos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450628/normal_601295b75129e.pdfIn PDF document text
    • https://cdn.sqhk.co/fefoseto/joXMjgu/jepubumisikimitikesam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416656/normal_6018ae637b716.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476767/normal_603e6e854de1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447086/normal_602dab306578b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482880/normal_6022652660a11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384650/normal_5fe39ec98fe9b.pdfIn PDF document text
    • https://cdn.sqhk.co/gusisitixinu/vibDha7/striker_soccer_brazil_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497658/normal_604a18546d656.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417313/normal_602586b2400bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476954/normal_605fd60610222.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369648/normal_5fcdfb42f25cc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xigoraviwa.epizy.com/bussid_kerala_oneness.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_off0000ee95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE95 4852 bytes
SHA-256: ed4bde9127e04fa65de73f4343cc67e4a4d8349e38d1004d1aaafe7746e4b69f
font_01_sfnt_off0000ff26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF26 10716 bytes
SHA-256: d943eadefc1d956197e5eade86af1d4f8518cfb0734c3c7eb9b4aee16f4e262c

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