Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd3eefb4d9a7657b…

MALICIOUS

PDF

71.8 KB Created: 2020-12-25 13:21:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 631078db1ec118cbd05f8a132b0cefb5 SHA-1: 7c7efe9a3505688d12364d979efe644a78cfdbf2 SHA-256: fd3eefb4d9a7657b7b1bb2a4f0aa914c6e82e30610e8d7729326c08443223afd
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a large number of external links, many of which appear to be part of an SEO link farm designed to redirect users. The primary lure is a 'plant sale' which points to a redirector URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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/strik?utm_term=double+rangoon+creeper+plant+for+sale PDF link annotation
    • https://s3.amazonaws.com/sabobenuwe/16961894766.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502246/normal_5fc0f73c6d78b.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/nabefatutupod.pdfIn PDF document text
    • https://fufivivol.weebly.com/uploads/1/3/0/8/130873849/9ea8eaddc4415.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/chakra_meditation_in_hindi.pdfIn PDF document text
    • https://sefubokadizafa.weebly.com/uploads/1/3/4/8/134880044/nebisekemas.pdfIn PDF document text
    • https://bemebedutor.weebly.com/uploads/1/3/4/6/134624352/fexesidamidase.pdfIn PDF document text
    • https://cdn.sqhk.co/gotirawuz/U5CVgcT/zefojuxolowoja.pdfIn PDF document text
    • https://lirejodeju.weebly.com/uploads/1/3/4/6/134628820/zefokezetox.pdfIn PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/kujelaneritevozexakafi.pdfIn PDF document text
    • https://wugovaxovagebi.weebly.com/uploads/1/3/0/9/130969592/sugudaguw.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://uploads.strikinglycdn.com/files/6f8b9e94-266b-47de-80d1-5f2e01a28c62/dufukabisagela.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbfcb946-ba85-4608-97e9-b886ade65468/81154910430.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/901864b2-85b3-46cb-81c9-6c76f1d82b94/86530375602.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 2

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_off0000cf4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF4C 5156 bytes
SHA-256: 243dbaf9ff5165630134280747fdc50c6575ade340cdd8a680cdf71c51fe8755
font_01_sfnt_off0000e0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E5 10444 bytes
SHA-256: 139bf486faeaeb4ba119eabc0d029b40efc05033158bfcd60c5930b322c7efde
font_02_sfnt_off00010459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10459 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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