Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e9683589bfad76b…

MALICIOUS

PDF

73.7 KB Created: 2021-02-23 11:15:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 45dfa350d88ecea0e63b79e07b911d7f SHA-1: e343ce1f7d53391cefc83e935830936d095e9ee2 SHA-256: 6e9683589bfad76baac9e55917f2f539288e13e982b6826a681d5e086eff82f5
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to redirect users to a malicious URL. The embedded URL and the document body, despite being heavily obfuscated, suggest a phishing attempt disguised as helpful content. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/strik?utm_term=how+to+change+a+motion+sensor+light PDF link annotation
    • http://contentmedialiteracy.com/55779533439og9ue.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/58215805116.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/56740050281.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426415/normal_5fe99f45b6358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413456/normal_6013ad08b574e.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/14089726778.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/3158988568.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420767/normal_5fcd79bdebdca.pdfIn PDF document text
    • http://bighome.space/31031704238ih6cs.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/fiber_cable_types.pdfIn PDF document text
    • http://worldthailand.fun/compaq_presario_v5000_specsv327e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382781/normal_6018d77947fa4.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/caboolture_state_high_school_formal_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425727/normal_6013c06359cbc.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/81185448610.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479451/normal_5fe098aaed560.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/mario_benedetti_cuentos_completos.pdfIn PDF document text
    • http://itdiscount.pro/zudabr9pqu.pdfIn PDF document text
    • http://mscredit.info/operating_systems_for_computers_free_download9jk9p.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ragoziminazu.epizy.com/makibad.pdfIn PDF document text
    • http://bilunijo.epizy.com/rirutuvoda.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_off0000e335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE335 5264 bytes
SHA-256: b4dff0f5551062d77d9fd619a19c2574c5663d807580d047a371e72e1f61d358
font_01_sfnt_off0000f500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF500 10564 bytes
SHA-256: 85162e7d2ee7e149b0755fb591f268cdf2182e0f0e77989a73c5cb58696b66dd

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