Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa84a86639e68f4a…

MALICIOUS

PDF

352.7 KB Created: 2022-03-06 04:44:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: aef9d37d4d56e0962ddade110a0afb36 SHA-1: c3a1a09f1937ea5e76007c8e4cf827c31a4ef686 SHA-256: aa84a86639e68f4a78ac7a3eb49aa8ae91f9f9b86abaef15bad7e417eec7e52d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

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://tevav.co.za/XSRYdR1H?utm_term=bhojpuri+video+song+remix+dj++mp4 PDF link annotation
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/e544f3a339380bbd230b98f09eb2ddc6/xogudonedawoziniw.pdfIn PDF document text
    • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1620885b934b3f---gozaduzu.pdfIn PDF document text
    • http://aguito.madteam.net/ckfinder/userfiles/files/mewanisumene.pdfIn PDF document text
    • https://arbormaster.us/uploads/files/zopenazod.pdfIn PDF document text
    • http://peterpan1996.it/userfiles/files/56868971059.pdfIn PDF document text
    • http://tai-group.com/upload/files/futivilu.pdfIn PDF document text
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/1608363454.pdfIn PDF document text
    • https://hobbyschuurtje-webwinkel.be/images/userfiles/file/ruxasopuwunewekox.pdfIn PDF document text
    • http://jinistudy.com/_UploadFile/Images/file/58100117966.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622178ce2992b---dabetibewofeziwimuvuzaf.pdfIn PDF document text
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/f06a99985b1630856d95e59ac543a507/ledew.pdfIn PDF document text
    • https://pansky.ru/UserFiles/File/xowinarozegoporokawon.pdfIn PDF document text
    • http://vamaconsulting.sk/userfiles/file/10602162451.pdfIn PDF document text
    • http://xn--365-pn7mwb654m2qn.com/ckupload/files/nefixewukozujoza.pdfIn PDF document text
    • http://www.assistvaleur.co.jp/inc/kcfinder/upload/files/darozidarataxovatef.pdfIn PDF document text
    • https://poetnazrul.com/kcfinder/upload/files/xobijuxawefamofekubusuki.pdfIn PDF document text
    • http://rocb-ap.org/file_media/file_image/file/rokekijezaxikubemojusi.pdfIn PDF document text
    • http://dotykbylinky.sk/_subory/subory/samagofafidinobu.pdfIn PDF document text
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/24160781558.pdfIn PDF document text
    • http://www.propper-droppers.nl/files/file/zazilibotodutaxev.pdfIn PDF document text
    • https://tfpac.com/nbloom/fckuploads/file/mebuvikazugej.pdfIn PDF document text
    • https://sunriseinnjasper.com/nbloom/fckuploads/file/nenugaruxewaruxaxe.pdfIn PDF document text
    • http://kahounova.cz/userfiles/file/87379299126.pdfIn PDF document text
    • https://happycpdl.com/backend/web/kcfinder/upload/files/netaruverinojijuni.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_off0005133f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5133F 17752 bytes
SHA-256: 1d12e4bd19121a5eec99d961036c4a127ce602f0f5af9998422d3e24b2fc0f00
font_01_sfnt_off000541d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x541D8 11060 bytes
SHA-256: 475eb82abde1f239d28888e14710c3e66820b749518816322997310b8e4fb483
font_02_sfnt_off00055b3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55B3C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9