Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f9289dabdb0b4b…

MALICIOUS

PDF

419.1 KB Created: 2022-02-02 21:46:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: 9974a9076370f91b29f0538738226322 SHA-1: 362f3b71139532d4954e806087a5806d4eeeda32 SHA-256: a4f9289dabdb0b4b4ea42f71d100ff96eb61c0914614261df7612d75a7d465b6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4499

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://fecuq.co.za/XSRYdR1H?utm_term=video+show+pro+video+editor+apk PDF link annotation
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/fkouehmkl6tjd33kbkit5uufml/60770896085.pdfIn PDF document text
    • http://izmirtavla.com/upload/file/sokupijidaxivizizuxa.pdfIn PDF document text
    • http://thietbikhachsanvinhhung1.com/upload/files/nizobapobitelufojujis.pdfIn PDF document text
    • https://herfection.herfection.tw/upload/ckfinder_temp/files/20211221225308.pdfIn PDF document text
    • http://5lovestartw.com/CKEdit/upload/files/ridikilisatejezujiz.pdfIn PDF document text
    • http://ceomit.com/fckupload/file/68894857019.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/bagofotetimuv.pdfIn PDF document text
    • http://brilsports.ro/userfiles/file///52295603260.pdfIn PDF document text
    • http://pharmabiosolutions.com/filespath/files/20210930181150.pdfIn PDF document text
    • http://englandmatchshirts.com/assets/file/vegefubonivugi.pdfIn PDF document text
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161b0dca67babc---rupaxidumosowabuvogijutuz.pdfIn PDF document text
    • https://casacresques.cat/uploads/files/woragiw.pdfIn PDF document text
    • http://sedaciesupravy.sk/media/file/tamepusamizinojiwofu.pdfIn PDF document text
    • https://renewone.de/files/sulapadopivojemu.pdfIn PDF document text
    • http://chinhlytailieuluutru.com/media/ftp/file/kurunawuniworineg.pdfIn PDF document text
    • http://wimborst-ceramics.nl/ckeditor/ckfinder/userfiles/files/gatidujarenojobugugupixeg.pdfIn PDF document text
    • http://vswet.ru/f/48856540726.pdfIn PDF document text
    • http://northamericaminingexpo.mininglifeonline.net/file/NiIUAkKDCZR28B8g.pdfIn PDF document text
    • http://vankouwenenmastop.nl/UserFiles/file/69895590990.pdfIn PDF document text
    • http://tdbm.vn/upload/files/64975876507.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/161ac2b636e1da---43810618790.pdfIn PDF document text
    • https://showerdrainplus.com/uploads/files/202201160249131916.pdfIn PDF document text
    • http://anhuizpyy.com/upload_fck/file/2021-8-5/20210805192057132997.pdfIn PDF document text
    • http://thepssmi.org/kcfinder/upload/files/nilesowavisefo.pdfIn PDF document text
    • http://toddfamilyreunion.com/clients/4/48/482e924d5a052aa4a0c13eb8a30e0bc8/File/zubuvaditipopo.pdfIn PDF document text
    • http://qazaqbanki.kz/data/content/files/xifodivax.pdfIn PDF document text
    • http://starwindows.ie/ckfinder/userfiles/files/34089522697.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/fumuzowepafutizexaji.pdfIn PDF document text
    • http://abbeytraining.net/userfiles/file/13475600627.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 extracted file (font_00_sfnt_off00060775.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00060775.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00060775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60775 18016 bytes
SHA-256: 1425185af8b5217d85b08e22dd519923f61856a7cc6961ae10977ffabe7a5827
font_01_sfnt_off0006362f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6362F 16092 bytes
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd
font_02_sfnt_off00064b75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B75 10552 bytes
SHA-256: fb0467062d3cee3b9c2566d8b5d16e626dcd2b9ee2f70b1d4cd432aa89ee15b7
font_03_sfnt_off000663c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x663C5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9