Malicious PDF — malware analysis report

Static analysis result for SHA-256 941ef08c68bef6f5…

MALICIOUS

PDF

287.0 KB Created: 2022-01-31 17:26:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 64838f5b8a46cf7aa29bb235dc822baf SHA-1: 0e465f61fc71ea13b78670f79cf2bd8d60a1cd21 SHA-256: 941ef08c68bef6f5140205348f9b42afb08c02288158e6992e1973a5592be183
166 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=atlas+del+cerebro+humano+pdf PDF link annotation
    • http://cn-daomeng.com/upload/userfiles/files/2059efeba7d0bd15cc78268705933190.pdfIn PDF document text
    • http://puisan.ru/uploads/file/befupe.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/161424321da07b---gewiliwarisekukemepapadim.pdfIn PDF document text
    • https://konkrea.be/uploads/files/57456868668.pdfIn PDF document text
    • http://slipa.site/0429/upload/files/264151617.pdfIn PDF document text
    • https://nevisnews.com/userfiles/4741491523.pdfIn PDF document text
    • http://licausi.it/userfiles/files/pifolid.pdfIn PDF document text
    • http://shceping.com/upFile/photos/2021-12/file/disakozawijanam.pdfIn PDF document text
    • http://rhythm-thailandagent.com/attach/file/lalefipejera.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/161a23dc62470b---wepefuvexoguv.pdfIn PDF document text
    • https://megashina24.ru/files/files/80228856831.pdfIn PDF document text
    • http://mfcwestenkwartier.nl/beta/userfiles/file/xikujanejivalen.pdfIn PDF document text
    • http://bjyhyy.cn/filespath/files/20210913161948.pdfIn PDF document text
    • http://massimomoroni.it/userfiles/files/jesoz.pdfIn PDF document text
    • http://chornakorn-packing.com/ckfinder/userfiles/files/61528544659.pdfIn PDF document text
    • http://handgun.ee/media/file/91259593314.pdfIn PDF document text
    • https://www.globalportsholding.co.uk/ckeditor/kcfinder/upload/files/85466355674.pdfIn PDF document text
    • https://contact-house.com/fckeditor/upload/file/67345352704.pdfIn PDF document text
    • http://proreferee.ru/uploads/ckfinder/files/25954097852.pdfIn PDF document text
    • https://darman.bimc.ir/UploadedFiles/New/file/kibosesetararigemafirig.pdfIn PDF document text
    • https://adminico.nl/userfiles/file/36304305576.pdfIn PDF document text
    • http://a-kamen.com/userfiles/file/gufen.pdfIn PDF document text
    • https://www.afsti.org/admin/kcfinder/upload/files/pozozixotudefuziza.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/mcl4o8mpdeqpm8eprrp8asuph9/gozapedumiwebavanigudivij.pdfIn PDF document text
    • http://duocthientam.com/uploads/ckfinder/files/59409800071.pdfIn PDF document text
    • https://cochleartudaskozpont.hu/files/99285445303.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/dbf63a9da09750d460178211fce94b52/dunitudokuzuxar.pdfIn PDF document text
    • http://northmarking.com/userfiles/files/dolerekawujebawivofape.pdfIn PDF document text
    • http://local-minicab.com/survey/userfiles/files/80010947205.pdfIn PDF document text
    • https://carpenterstouchnj.supremeroi.com/FCKeditor/file/xudafitiw.pdfIn PDF document text
    • https://www.pelicanfinancialnetwork.com/ckfinder/userfiles/files/57502162820.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_off00040c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40C42 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000422e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x422E1 18428 bytes
SHA-256: d79bef682ba38cfbbf38b9bc935b6598acc7e1c2706b595979dfe5db54f0c28d
font_02_sfnt_off0004520a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4520A 11012 bytes
SHA-256: 0ae7b1126ec2bd7db6b727dbea982ecdc2f4d40074bff2713da01329d3b95cb1