Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa882a264346e5a0…

MALICIOUS

PDF

434.5 KB Created: 2022-03-20 11:13:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 28b6ebe0db6e8517a1629e87f1d1548e SHA-1: 0d1b6a4e80dce68f4cae032efec4c29f43fc056f SHA-256: aa882a264346e5a08ebbd51a0fa98a93e117769bb2d4b922f8b303fe18e0d30d
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4712

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://mifuj.co.za/XSRYdR1H?utm_term=gogo+sentai+boukenger+vs+super+sentai PDF link annotation
    • https://mayxaydungthienlong.com/uploads/files/files/69697184776.pdfIn PDF document text
    • http://valk.dn.ua/js/kcfinder/upload/files/mobovujegaduxetuzeku.pdfIn PDF document text
    • http://umrllc.com/userfiles/files/dofilavozexi.pdfIn PDF document text
    • http://iharoskezmuvesek.hu/ckeditor/kcfinder/upload/files/sigivuze.pdfIn PDF document text
    • https://webseitenvergleich.com/newerac2c/userfiles/file/dagifoxe.pdfIn PDF document text
    • http://disonde.com/filespath/files/20220204175757.pdfIn PDF document text
    • https://clubelsendero.com/img_pag/file/rajesozozepelakefezobov.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/161f8c3a611911---diwivodenatepi.pdfIn PDF document text
    • http://xtra360.net/campannas/file/goxuliwufokobabelopotug.pdfIn PDF document text
    • https://praktijkbinnenstad.nl/file/xuxofofibimono.pdfIn PDF document text
    • https://gmnavarra.es/ckeditor/files/zejadosaropatoruba.pdfIn PDF document text
    • http://tuyendung.tlipgroup.com/upload/images/files/pesedijivuweranure.pdfIn PDF document text
    • http://www.proektes.ru/kcfinder/upload/files/mofolegulibofevo.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/8d3e6615748dcef01ed96ecb7fca17de/defewikumep.pdfIn PDF document text
    • http://szopkoszulek.pl/ckfinder/userfiles/files/73015883054.pdfIn PDF document text
    • https://888nv.ru/userfiles/file/47461481621.pdfIn PDF document text
    • https://itracmediav5.com/ckfinder/userfiles/files/15746170223.pdfIn PDF document text
    • http://laptopcuhaiphong.vn/upload/files/kuwofaxigodatewagokiw.pdfIn PDF document text
    • http://ayrh.internet-match.com/upload/files/xuxanamanegadokajil.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16205b7b939587---legidoz.pdfIn PDF document text
    • http://muacuoi.vn/Pictures/files/fekukijezunokosazuvelitil.pdfIn PDF document text
    • http://www.de.ruben.pl/ckfinder/userfiles/files/gatefuton.pdfIn PDF document text
    • http://avgustal.ru/kcfinder/upload/files/jozijas.pdfIn PDF document text
    • https://schneider-rozetki.ru/kcfinder/upload/files/82570714934.pdfIn PDF document text
    • https://dol-rtknetwork.com/uploads/files/begijajagumidukajuti.pdfIn PDF document text
    • http://nellion.ru/upload/files/rusafesogowog.pdfIn PDF document text
    • https://konferencia2017.medius.sk/userfiles/file/49212970279.pdfIn PDF document text
    • http://eidatlantique.antevox.fr/UserFiles/medias/49592397447.pdfIn PDF document text
    • https://roundtable106trust.org/admin/uploads/file/dasofed.pdfIn PDF document text
    • http://someteme.com/archivos/_20220228153124.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_off000653fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653FB 20172 bytes
SHA-256: d07fc78151850d3beb37e085a4e18b01981258e2dc19da3697f03b39137e4488
font_01_sfnt_off00068a14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A14 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006a134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A134 10816 bytes
SHA-256: 92e7595a65754e784aa25a3f94a66ce8ea09d3c05968778acf6fed1b172e1942