Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c827ce876b5586…

MALICIOUS

PDF

65.2 KB Created: 2021-03-04 12:30:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-13
MD5: 9707a64775253ad804608464a8925006 SHA-1: e8f3d4c2b71dcb48be8c02e049ef06df87226d84 SHA-256: 93c827ce876b5586b128210e25c8f94317f7ece3e7e866fd9a5c2b6501130a0c
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/wb?keyword=the%20long%20haul%20book%20finn%20murphy PDF link annotation
    • http://czecheducation.space/ccdc_23dwauf.pdfIn PDF document text
    • http://xulazawelinuze.scienceontheweb.net/7545843540.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/mixubugojarunimelubanos.pdfIn PDF document text
    • https://regurawuxafedan.weebly.com/uploads/1/3/0/7/130740517/radumusemilodasis.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/epilepsy_ketogenic_diet.pdfIn PDF document text
    • http://wersita.fun/zovibirolurasejut508v.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/77951086482.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/best_guided_by_voices_songs.pdfIn PDF document text
    • https://nowesepi.weebly.com/uploads/1/3/1/1/131164229/joreli_lutilos_vutajidebuv.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/14610615996.pdfIn PDF document text
    • http://xuwamamesatopa.22web.org/whistle_blackpink_video_free.pdfIn PDF document text
    • https://ruxibudowivuk.weebly.com/uploads/1/3/4/7/134728491/sorire.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/best_online_android_course.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/crowdstrike_holdings_earnings_report.pdfIn PDF document text
    • http://tortomsk.ru/4690518616369whr.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c39d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c39d.bin)
    • http://xekazaz.myartsonline.com/30191674719.pdfIn PDF document text
    • http://fofilelajisemap.rf.gd/10898529120.pdfIn PDF document text
    • http://nobajoxeruxepin.rf.gd/10809557387.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 extracted file (font_00_sfnt_off0000c39d.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c39d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC39D 5392 bytes
SHA-256: 32f407777467ef75c020d40fbb09dbc491f3ff60d5a41ed75b00055c2038ca32
font_01_sfnt_off0000d5da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5DA 9912 bytes
SHA-256: 77a20f34f2b5e5c5f85be4c119b0cf086a5690f3533c61213df1c2c7c6c63e87