Malicious PDF — malware analysis report

Static analysis result for SHA-256 b595d0842d41e184…

MALICIOUS

PDF

537.7 KB Created: 2022-02-07 06:48:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-19
MD5: 941c1f58b676f6c1eb1ae9f71c008e6e SHA-1: 1eafc5680d06fb1a331ce46cf4379cde341aebe1 SHA-256: b595d0842d41e1841961ce2361de3cf59cb416fd167a74b0c2beed8ca2b9adff
131 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4831

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
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://lazav.co.za/XSRYdR1H?utm_term=simple+tenses+of+verbs+exercises+with+answers PDF link annotation
    • https://bikidi.com/UpFiles/WebEditorFiles/file/rovafinaxivos.pdfIn PDF document text
    • https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/53358086486.pdfIn PDF document text
    • https://stopserv.ru/files/file/jobezexafiwur.pdfIn PDF document text
    • http://glassick.com/userfiles/file/13593536525.pdfIn PDF document text
    • http://holidayinntorino.com/userfiles/files/kafitagelarevisi.pdfIn PDF document text
    • https://bcbc3399.com/upload/files/zamoduzogitevetalepigizam.pdfIn PDF document text
    • http://neodermclinic.com/file_media/file_image/file/25844240321.pdfIn PDF document text
    • http://p-energo.ru/content/file/zoxiworumujinefarudobezu.pdfIn PDF document text
    • http://diamantina-joaillerie.com/ckfinder/userfiles/files/32899151883.pdfIn PDF document text
    • https://www.saags.edu.bd/assets/ckeditor/kcfinder/upload/files/devogop.pdfIn PDF document text
    • https://nestsearch.in/admin/uploads/file/97397959224.pdfIn PDF document text
    • http://losaltos.com/wysiwygfiles/file/vuleperizinidotorizif.pdfIn PDF document text
    • http://12shio5.com/contents/files/99035161627.pdfIn PDF document text
    • http://coimbrasoftware.hu/images/uploads/files/xejunijesenisulimux.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161b7d48959f41---benokowesugawoladel.pdfIn PDF document text
    • https://chingchia.com/uploads/files/202109181610541287.pdfIn PDF document text
    • https://kiptep.ru/file/sumetuzikujixunabopa.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/161e28d377777c---38027217911.pdfIn PDF document text
    • http://haihengpharm.com/upload/files/sarevubovovopuf.pdfIn PDF document text
    • http://pulsarvn.com/media/ftp/file/nejujumelolanefogudog.pdfIn PDF document text
    • http://portalpr-b2b.es/img/user///file/_0905317001627885251.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0007f9f5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007f9f5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007f9f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9F5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00081115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81115 11212 bytes
SHA-256: b22c73468855fb0478fe8d56ed0106899565a90024fdc9fa016f763a59acbf6b
font_02_sfnt_off00082af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82AF5 16988 bytes
SHA-256: 1ac4439157725cb6932458b2221b28830ef4276ceb5a9a6fcff5c037e23b476d