Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e36753c3d361ff7…

MALICIOUS

PDF

70.0 KB Created: 2020-11-18 00:10:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 924404b5832613aff825d71b5dee9bc6 SHA-1: 4824150c6139691292b3b5d1515f1116c8ef4e56 SHA-256: 4e36753c3d361ff70ceacc9b8c23267190e4b29816cc33d14843af7005ffac0a
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafficel.ru/123?utm_term=superlatives+in+spanish+worksheet PDF link annotation
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/kunujuxugafid.pdfIn PDF document text
    • https://folanejo.weebly.com/uploads/1/3/0/7/130776558/wumojanarelopo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374951/normal_5f984b0f2be50.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/kidekiga_kenumesilesegom_xatuvarovu.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://s3.amazonaws.com/henghuili-files/solidworks_tutorial_12.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f5e548c-56ce-4e03-9a86-3dcb013a4a60/bmr_answer_sheet_sea_cadets.pdfIn PDF document text
    • https://s3.amazonaws.com/befevifa/bexubituposawi.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/rock_cycle_worksheets_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/song_artist_wheel_of_fortune.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/11557671288.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9cfac8c-00df-4fe2-b729-c7701dd25150/45194218401.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA63 2884 bytes
SHA-256: b459e088f27c5fc57fdc331d906d912149dc4f664d38a900a777ab92a517cd95
font_01_sfnt_off0000c4a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4A5 5108 bytes
SHA-256: cbdfdaeffa6d5d0f4b68e2cd8c49524d904b587a0f80b528f2d7f0373910f15f
font_02_sfnt_off0000d60c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD60C 11420 bytes
SHA-256: 7b58960963ce2bb009e012a158e03633af24c9e09dd934a54a84eca6f47ddfe4
font_03_sfnt_off0000fb57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB57 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2