Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c9c3d1d264ccdd…

MALICIOUS

PDF

362.7 KB Created: 2022-03-09 11:54:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 8187e13faca83737df23ad7b442cdc2a SHA-1: 26015a856a6d72953eb8cb176f3011b40fb6f770 SHA-256: a9c9c3d1d264ccdd167d97471a3eff35c405db9e0a44cae7b382f242a2971832
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7478

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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=seizures+nice+guidelines PDF link annotation
    • https://vatlieubaooncachnhiet.com/userfiles/file/86297067636.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1620a494c5eb5b---77284168462.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216d9cba4a6a---xuwudego.pdfIn PDF document text
    • http://sinostandards.net/upload/files/wabupimurivube.pdfIn PDF document text
    • http://vamaconsulting.sk/userfiles/file/62237831710.pdfIn PDF document text
    • https://www.oabrn.org.br/2017/_ups/files/files/xedulimavuwinoxusuj.pdfIn PDF document text
    • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/16204e4fa4cec0---wevutematifadaju.pdfIn PDF document text
    • http://wagnerpc.com/userfiles/files/72490169874.pdfIn PDF document text
    • http://feach.ie/images/uploads/file/29571117813.pdfIn PDF document text
    • http://divorceinhungary.hu/kcfinder/upload/files/41049901366.pdfIn PDF document text
    • https://lp-tracking.com/userfiles/file/remilewovokagumemibo.pdfIn PDF document text
    • http://nenayu.com/filespath/files/20220224000153.pdfIn PDF document text
    • https://orangerun.re/photo/files/gokegedigapajeje.pdfIn PDF document text
    • http://progressive-auto.ru/app/webroot/js/kcfinder/upload/files/28788344622.pdfIn PDF document text
    • http://a-pluset.com/userfiles/nudigemowufo.pdfIn PDF document text
    • http://stonepigments.com/userfiles/file/39868500714.pdfIn PDF document text
    • http://mynotary.ca/sites/all/sites/mynotary.ca/files/21151169384.pdfIn PDF document text
    • http://prompol.com/media/file/52807599958.pdfIn PDF document text
    • http://escrima-rlp.de/userfiles/file/45026459029.pdfIn PDF document text
    • https://thietbiotoviet.com/Images_upload/files/tesurezilutot.pdfIn PDF document text
    • https://bacninhonline.com/webroot/img/files/dulipunatekifovo.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/5f9495aab3d3c9f88e5cc54f0dc76934/75288257476.pdfIn PDF document text
    • http://quangcongluc.com/upload/files/12186252774.pdfIn PDF document text
    • https://dienlanhhonganh.com/images/pic/file/3191971172.pdfIn PDF document text
    • http://agrariusnet.hu/admin/ckeditor/kcfinder/upload/files/doraretamesemodirugo.pdfIn PDF document text
    • https://ww150005.linebot.net/upfile/files/20220215111939.pdfIn PDF document text
    • https://textosl.com/upload/editor/file/42876503758.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_off00053cb1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00053cb1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53CB1 18768 bytes
SHA-256: 0b7d4099c3e185e8ce2d12eb97eb1ab5f17f5b8abafdc2e9f747c4f8fc6a7c21
font_01_sfnt_off00056dcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56DCB 10400 bytes
SHA-256: 6d79bfc2c62f42c9d6f963d21b46de8feafe064f340877832ee618f8ef43b926
font_02_sfnt_off00058530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58530 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9