Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99526c2ef804afd…

MALICIOUS

PDF

444.9 KB Created: 2022-02-06 13:30:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: ad46965fe0596865f46a5e52924b2d89 SHA-1: f820a2155b9e49f31c203737fda2e6b96d97b4fa SHA-256: f99526c2ef804afd3d100ea461bf48a649be46f6a62c21b8e92ac9d24d91051f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3450

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://podar.co.za/XSRYdR1H?utm_term=everglow+piano+sheet+music PDF link annotation
    • http://dorinhawear.com/admin/fckeditor/editor/filemanager/connectors/php/fckeditor/editor/filemanager/connectors/php/userfiles/file/mozetode.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611d76ac5301c---44331121455.pdfIn PDF document text
    • http://chipmax.in/chipmax/ckfinder/userfiles/files/95672573148.pdfIn PDF document text
    • http://blagoveshhensk.torbay.ru/images/uploads/file/30606812642.pdfIn PDF document text
    • https://olterus.org/contents//files/wugekurilefemepuxemum.pdfIn PDF document text
    • http://touristclub.in/userfiles/file/65071992718.pdfIn PDF document text
    • https://eurouniversal.eu/ckfinder/userfiles/files/dunawamapufebotomexolu.pdfIn PDF document text
    • http://numismatika-nbkpdy.cz/userfiles/file/46474773093.pdfIn PDF document text
    • http://gima.ge/admin/ckeditor/ckfinder/userfiles/files/kajojo.pdfIn PDF document text
    • http://jph.kr/userData/ebizro_board/file/zunosijesuxajibasijitut.pdfIn PDF document text
    • http://eblast.stationhub.com/Upload/file/somanididapepav.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/3100419483.pdfIn PDF document text
    • http://mrukseo.pl/userfiles/file/72965057552.pdfIn PDF document text
    • https://pecel-piok.hu/images/files/gonadiwozularefi.pdfIn PDF document text
    • http://npas.ru/pic/file/50706279142.pdfIn PDF document text
    • https://mamap.in/ci/userfiles/files/gamezovi.pdfIn PDF document text
    • http://www.niceresidence.net/image/upload/File/xupopuvuzotidotusatobaw.pdfIn PDF document text
    • http://theprojectmanagement.guru/cote_dor_import/admin/ckfinder/userfiles/files/furejasala.pdfIn PDF document text
    • https://gymlesgeants.com/upload/editor/file/93754736207.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/bokazezamefuditovusikul.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/161751fc96870b---nuteworebu.pdfIn PDF document text
    • http://turnwealthy.com/ckfinder/userfiles/files/lumeletomozivuriwaguzuxix.pdfIn PDF document text
    • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/nhqinquj7q0t7tisgksub755kh2bir4r/kaxuxi.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/abd7ea28f863649b4204b3250b0fc559/28621492064.pdfIn PDF document text
    • https://psfund.org/public/uploads/files/cms_files/vuzego.pdfIn PDF document text
    • http://skolky.info/foto/images/file/guvixanufujaw.pdfIn PDF document text
    • http://interstyle.org/content/xuploadimages/file/pakiwoji.pdfIn PDF document text
    • http://www.klasikmoto.sk/admin/ckeditor/kcfinder/upload/files/xixisemosisujimigap.pdfIn PDF document text
    • http://hmarksltd.com/assets/ckeditor/kcfinder/upload/files/tawekoti.pdfIn PDF document text
    • https://seeandhearbetter.ie/img/shop/contents/69537606586.pdfIn PDF document text
    • http://www.azurwelcomeservices.com/userfiles/file/jiboz.pdfIn PDF document text
    • http://happysmilecard.com/uploads/files/rezaso.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00063e0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E0F 18392 bytes
SHA-256: 8772760065456e387e32f2b9139235bb58abd14e2b64e9a58b8ab03a001cdfcd
font_01_sfnt_off00066e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E3C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006855c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6855C 11056 bytes
SHA-256: 40b82ce6ea282aab56ed716d59b3ddf0844379f0e2a0e1bbcbbf7cf5dfb90c24
font_03_sfnt_off00069ef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69EF7 23544 bytes
SHA-256: a516bfe547a36b1ade769371a0ec46c2c35505c5c6325b9066e4d5d0d1588132