Malicious PDF — malware analysis report

Static analysis result for SHA-256 782e18b33c87ddcf…

MALICIOUS

PDF

207.4 KB Created: 2022-01-14 13:47:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: fd0394d173cb3f464da36018b46d7cb8 SHA-1: 43c4d0b700f3bc3fd04ce1c4b56960af6bab4a8a SHA-256: 782e18b33c87ddcf637dd487952e5c9f70ec2e8b4b918a1c8e1d2896f708c3a2
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8536

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://subarini.sibiuimobiliare.ro/mm/file/rojinovimerixazeravozi.pdf In PDF document text
    • http://trust-law-firm.com/userfiles/file/20210924230727_2047755774.pdfIn PDF document text
    • http://fujieshubao.com/zk/UploadFile/file/2021103004334073499.pdfIn PDF document text
    • https://webtechnocrats.com/upload/file/nilizolilejod.pdfIn PDF document text
    • http://gazduire-domeniu.com/UserFiles/file/70107155217.pdfIn PDF document text
    • https://full-e.com/app/webroot/userfiles/files/20211213_120818.pdfIn PDF document text
    • https://bitree.ru/ckfinder/userfiles/files/59303244657.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1618cbb904ccdc---sopufesizetufuvoz.pdfIn PDF document text
    • http://chocoenglish.com/_UploadFile/Images/file/matufelejigibipevigomaxu.pdfIn PDF document text
    • http://csc0516.com/userfiles/file/20210917000223_0trjca.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c0ca8862b---veturefunob.pdfIn PDF document text
    • https://www.medicalbi.com/ckfinder/userfiles/files/kadijevimavedurebinux.pdfIn PDF document text
    • http://lauffer.com.br/app/webroot/js/kcfinder/upload/files/94005575876.pdfIn PDF document text
    • https://happyfun.tw/uploads/files/202109281234033884.pdfIn PDF document text
    • http://globalfeedindustry.com/upload/files/rolazuzatelemobavupujufo.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161c2599b0f0b2---94089335153.pdfIn PDF document text
    • http://allier.proximeo.com/ckfinder/userfiles/files/57349441404.pdfIn PDF document text
    • https://lengthening-sldf.com/userfiles/file/9594169953.pdfIn PDF document text
    • http://keystoparadise.com/userfiles/files/tamekowisinebejewam.pdfIn PDF document text
    • https://marathonroller.com/userfiles/files/99382080800.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16130197c784b8---99618095268.pdfIn PDF document text
    • https://briljant-maleri.se/UserFiles/files/pelavef.pdfIn PDF document text
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16150903362326---71546839268.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/TxADE9PCSUw/uplcv?utm_term=flow+chart+template+for+powerpoint+2010PDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d2b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2B4 10936 bytes
SHA-256: 7fafe32bc2515db2756bd7d731ffdeabe31e7f68afc210f154bbee5ee7ec1b30
font_01_sfnt_off0002ebf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBF8 17164 bytes
SHA-256: c9cc8e5d2a883d6854529cf5418f5f574ab906e9061d59ae09077769456cf99c
font_02_sfnt_off00031871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31871 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336