Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b635721dd289cbd…

MALICIOUS

PDF

287.8 KB Created: 2022-03-12 13:01:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 886324508ae960fb47aaf489aed54f3b SHA-1: 16a1df6cb43e974d5cf29d16f423c4e41b57acda SHA-256: 2b635721dd289cbda489422a8b6a1c90f57217552d6303387d7321c856d8768c
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7430

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.
  • 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://norin.co.za/XSRYdR1H?utm_term=corrugated+iron+zinc+sheet PDF link annotation
    • http://remont-elektro.eu/archiv/file/mulilexiwexeb.pdfIn PDF document text
    • https://tonicsuitemusic.com/userfiles/files/wifotijanaxipud.pdfIn PDF document text
    • http://salespate.com/userfiles/file/lelosarufixus.pdfIn PDF document text
    • http://auto-fiesta.ru/upload/files/87558498260.pdfIn PDF document text
    • https://effiebulgaria.org/files/files/59957155514.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1622c5869e4527---42711850289.pdfIn PDF document text
    • https://muachungbaohiem.com/uploads/userfiles/file/vodivogipegal.pdfIn PDF document text
    • http://ourdesign.hk/ckfinder/userfiles/files/71523503987.pdfIn PDF document text
    • http://gospel-pour-100-voix.com/fichiers/newsletter/file/bumafonitowujafeluz.pdfIn PDF document text
    • http://elitsatodorova.com/uploadfiles/file/65130740571.pdfIn PDF document text
    • https://escolaalfa.com/userfiles/file/44057007180.pdfIn PDF document text
    • http://pop-around.com/file_media/file_image/file/81486890387.pdfIn PDF document text
    • https://aharonoff.easystockhosting.com/sites/default/files/fckimages/file/94942491324.pdfIn PDF document text
    • http://nm-union.ru/ckfinder/userfiles/files/tubirowozamosu.pdfIn PDF document text
    • https://taxfirma.com/userfiles/file/kobinaxi.pdfIn PDF document text
    • https://www.yulava.es/js/libraries/ckeditor/kcfinder/upload/files/88346541087.pdfIn PDF document text
    • http://thuexe7cho.vn/upload/files/razerusila.pdfIn PDF document text
    • http://senkardeslerkereste.com/kcfinder/upload/files/sekajezafidapisenupabera.pdfIn PDF document text
    • http://www.masozilina.sk/ckfinder/userfiles/files/91436197854.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161f9f3f6f05da---beguxipo.pdfIn PDF document text
    • http://greenplanetnepal.com/userfiles/file/dazezaleg.pdfIn PDF document text
    • http://ty6600.com/userfiles/file/gudukimejisikan.pdfIn PDF document text
    • http://kama-msm.ru/storages/file/21058116546.pdfIn PDF document text
    • https://podzamcze-dobczyce.pl/admin/kcfinder/upload/files/pikagobudaronufagawine.pdfIn PDF document text
    • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/161fd0b97bb4b1---73197245569.pdfIn PDF document text
    • http://korowod.sdk.pl/userfiles/file/boxidimifubowezirunusup.pdfIn PDF document text
    • http://bong-dem-long.org/upload/editor/files/58739008130.pdfIn PDF document text
    • http://take114.kr/FileData/ckfinder/files/20220219_C05D57CACFBB6EEB.pdfIn PDF document text
    • http://obkladlazby.cz/userfiles/file/98647107378.pdfIn PDF document text
    • http://tuv-zimer.co.il/assets/userfiles/files/76295850520.pdfIn PDF document text
    • https://gkia.org/kingkong/userfiles/files/bazojogefifax.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 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_off00041025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41025 18460 bytes
SHA-256: da014d73235ae69bcfee63d6d4ab9a6d9b8889a79848d031075db1678dbf989c
font_01_sfnt_off0004406b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4406B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004578b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4578B 10792 bytes
SHA-256: 16b1e7f051aac8b62cc99cb92a6a1596391aa4ffeeb1afb1d5750a4005b3151e