Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f7b671360cfda4…

MALICIOUS

PDF

259.9 KB Created: 2022-02-02 12:06:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 55eb550883ec8ad58596a8aeb3ab22e3 SHA-1: edefb27939fe74972b3557ccf74c84783216bd39 SHA-256: a4f7b671360cfda4d57234bc2cf86cd22b75b38fa2ab70ae2929227d43988469
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7783

Heuristics 5

  • 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.
  • 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://wirut.co.za/XSRYdR1H?utm_term=android+one+mi+mobile PDF link annotation
    • http://wrtour.com/FileData/ckfinder/files/20211014_C1EC6AC2055002D0.pdfIn PDF document text
    • http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/fogudijuduvafozib.pdfIn PDF document text
    • https://bibliothequedesarts.ch/ckfinder/userfiles/files/967453993.pdfIn PDF document text
    • http://youandisagenix.com/ckfinder/userfiles/files/60951656004.pdfIn PDF document text
    • https://securitydm.eu/slicice/file/sukizasozufife.pdfIn PDF document text
    • https://www.synergyom.com/kcfinder/upload/files/karadubojoxawizo.pdfIn PDF document text
    • http://www.bombillasconled.com/archivos/files/munaluf.pdfIn PDF document text
    • https://www.lucaslobker.com/minor/ckfinder/userfiles/files/pegeniribajuxov.pdfIn PDF document text
    • http://centrodebridge.pt/ckeditor/kcfinder/upload/files/dofimuwep.pdfIn PDF document text
    • https://kaowei.tw/image/files/20210811_012031.pdfIn PDF document text
    • http://himalayakebab.com/shipinc/userfiles/files/jijasixaligipirebisaj.pdfIn PDF document text
    • http://shopcode.ru/uploads/file/zepaligaxuliz.pdfIn PDF document text
    • http://audidalys.lt/ckfinder/userfiles/files/vasefasawuzit.pdfIn PDF document text
    • http://twfindia.in/userfiles/files/putuvuwekeveku.pdfIn PDF document text
    • http://alrehabourhome.com/userfiles/files/kazuxajolivubuvi.pdfIn PDF document text
    • https://pesonabali.dswip.com/ci/userfiles/files/tivitaluwafujisegimopab.pdfIn PDF document text
    • http://cargologicru.com/sadm_files/guwomepegikivipapi.pdfIn PDF document text
    • https://apra.pl/files/file/kopatukunajotolo.pdfIn PDF document text
    • http://wangguanhardware.com/userfiles/file/xilulurazoruvab.pdfIn PDF document text
    • https://essaidafm.com/uploads/FCK_files/file/ginukotujulisinop.pdfIn PDF document text
    • http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161143f788e010---nonoletixapemowobamolifip.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/161eae9d775e82---69221053589.pdfIn PDF document text
    • http://amtutoring.com/clients/865321/File/80557168907.pdfIn PDF document text
    • https://atavio.ru/files/file/pabumefi.pdfIn PDF document text
    • https://luatsuavina.com/userfiles/file/judabaladoxewitisu.pdfIn PDF document text
    • http://iphysiology.ru/upload/27702910766.pdfIn PDF document text
    • http://nitecoreromania.ro/files/file/kamulitebopuruk.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140fe2080de0---97312762852.pdfIn PDF document text
    • https://gitimohammadilakhimpur.org/ckfinder/userfiles/files/jobexupo.pdfIn PDF document text
    • https://cuatudongsaigon.net/uploads/files/vepixibo.pdfIn PDF document text
    • http://dajuicebarus.com/uploads/files/33688955403.pdfIn PDF document text
    • https://cosplay-expo.it/ckfinder/userfiles/files/80693500151.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/9hogeth0c2mquat002kpd4kl84/rofaxotukim.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_off00039458.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00039458.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00039458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39458 24008 bytes
SHA-256: 9b9e331886b274f9f32f11dfc0948daf5e545dffa785c4298fac3a1f55422ae0
font_01_sfnt_off0003d0b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D0B9 10104 bytes
SHA-256: f7c35675074f46722cbe7cfb48c456c97115751144125aec9c89f813cbf18d4d
font_02_sfnt_off0003e71c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E71C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9