Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c2692f04588f33…

MALICIOUS

PDF

281.2 KB Created: 2021-12-20 18:44:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: faeb42c1cef32455ea78cd7a952679bb SHA-1: f36717b069d2420f452ca07c3b980f38315411e0 SHA-256: a9c2692f04588f339c3bfd187d23c78847b18f7347ccc46b6d4c9ea7a968e6f0
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7003

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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 http://misterholidaysanprisco.it/userfiles/files/jamadidigapop.pdf In PDF document text
    • http://hengtongrongshang.com/jingkelun/userfiles/files/20211003161558.pdfIn PDF document text
    • http://seattlebestteriyaki.com/uploads/files/73531022281.pdfIn PDF document text
    • http://dailythang.com/userfiles/files/fotorugakojokugumebov.pdfIn PDF document text
    • https://pt-lb1.pasarantogel.com/contents/files/53311071031.pdfIn PDF document text
    • http://vnos.vn/app/webroot/uploads/files/vuxeposojozuvu.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16177e2c33d121---fowizupag.pdfIn PDF document text
    • http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619d735dc1f7a---67612554387.pdfIn PDF document text
    • http://4seasonstours.in/userfiles/file/xuzefunuteji.pdfIn PDF document text
    • http://dotacjedlaoze.pl/userfiles/file/68846404856.pdfIn PDF document text
    • http://rallyteamwalraven.nl/file/lokatotoneratesile.pdfIn PDF document text
    • http://gramercygrand.ru/files/file/lobuselasupaxagekevogeve.pdfIn PDF document text
    • http://mxagproducts.com/upload/browse/file/48361394986.pdfIn PDF document text
    • https://dhrc.in/userfiles/file/13430311582.pdfIn PDF document text
    • http://cablexconsulting.com/Upload/file/9604481522.pdfIn PDF document text
    • https://psicologopsicoterapeutaemdrtorino.it/uploads/file/97029341208.pdfIn PDF document text
    • http://dunajecbiala.pl/upload/File/kedosojanikopotosugevebo.pdfIn PDF document text
    • https://www.abandassociates.com/ckfinder/userfiles/files/43020091530.pdfIn PDF document text
    • http://akvari-um.ru/userfiles/file/24812155363.pdfIn PDF document text
    • https://citytrafik.nu/images/file/murikalixakogavovegad.pdfIn PDF document text
    • http://www.anclupnapoli.it/userfiles/file/32776821895.pdfIn PDF document text
    • https://chp-travel.ir/data/file/39125933478.pdfIn PDF document text
    • http://andreuma.madteam.net/ckfinder/userfiles/files/jujoxagado.pdfIn PDF document text
    • http://crmrealty360degree.in/ci/userfiles/files/xisefiwasuluvimubinoler.pdfIn PDF document text
    • https://inwebjor.ru/uplcv?utm_term=facial+recognition+attendance+system+pdfPDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0003f0cb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003f0cb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f0cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F0CB 11052 bytes
SHA-256: b02de65f522e635e798d7ae0e61430357e3fb8d523a72c90f4236ce62bb7a72f
font_01_sfnt_off00040a54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40A54 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000420f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x420F3 20184 bytes
SHA-256: c6669bf5cfa74bc2514859506caefd21049d1d37adaa5ccd8e99e1897ce096af