Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e21e4812c5ad95e…

MALICIOUS

PDF

70.0 KB Created: 2021-02-27 01:17:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 59fb4bfd7588fe64138902382b213177 SHA-1: 138711ba5cf1f03d1cfbe065b1002ffc657085f8 SHA-256: 1e21e4812c5ad95ee3dbf451eef9ca54aa460a488240d0efc9261cc5b479d084
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xajibur.ru/wix?keyword=missouriconnections.org+sign+in PDF link annotation
    • https://cdn.sqhk.co/sujubowip/knicIia/zazivupediz.pdfIn PDF document text
    • http://kakafeg.scienceontheweb.net/monitorear_red_wifi_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/bikegola/hbijhhk/helicopter_flight_simulator_for_pc_free_download.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/gipidugizelewaxit.pdfIn PDF document text
    • https://cdn.sqhk.co/tanusulirava/mCyvifv/where_to_buy_electric_train_sets_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/dugixikisim/gjjaFih/57604606062.pdfIn PDF document text
    • http://zopokujejisolan.getenjoyment.net/10544734744.pdfIn PDF document text
    • https://cdn.sqhk.co/xipovowimugo/a1KVigN/kamezeluzigelagogulo.pdfIn PDF document text
    • https://cdn.sqhk.co/rifusofuwedi/iHjjhdo/dental_assistant_chairside_procedures.pdfIn PDF document text
    • https://cdn.sqhk.co/napoxanu/ukTOagj/15311691655.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/hewgiY7/81461915578.pdfIn PDF document text
    • https://portal.missouriconnections.org/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/jagoxizitixavuke.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/79997643300.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/fanaxinibuwudewati.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/treble_clef_and_bass_clef_notes_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/76910134710.pdfIn PDF document text
    • http://livirava.atwebpages.com/95862023073.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/dreamweaver_cs4_template_tutorial.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7DF 4760 bytes
SHA-256: 744248a5eaf1b9f8e00c41f4684e298f5725cb4194bc3679b6f315fd9d39aa7d
font_01_sfnt_off0000e839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE839 10240 bytes
SHA-256: c74ad361a2698fd5a0715c0fa2f542ea00048b45e5edfd06e18422ac738783f9