Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f8e96de84f4891…

MALICIOUS

PDF

793.3 KB Created: 2022-02-11 05:16:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 2ad43b8295a3515e95812d887773079e SHA-1: bef1976f9c413dd13d0ac0cdee15454e0f9116b9 SHA-256: a4f8e96de84f48911f9e9e3602d43b11eb76d86f09dcc22bcccf1051ae58158d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.2108

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=assignment+abroad+times+newspaper+jobs+pdf PDF link annotation
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615430fb87986---bobomejopubize.pdfIn PDF document text
    • http://hysansam.com/fckeditor/userfiles/image/15975918573.pdfIn PDF document text
    • http://2013.letnifestiwal.pl/ckfinder/userfiles/files/kazosisas.pdfIn PDF document text
    • http://axi-hohenstein.de/userfiles/file/62750555977.pdfIn PDF document text
    • http://28777886.com/Lpf/UPFILE/userfiles/files/molapipuxevixi.pdfIn PDF document text
    • https://mywayrtk.com/userfiles/file/nujoxidixoj.pdfIn PDF document text
    • http://t-700.net/upload_img/files/13230764353.pdfIn PDF document text
    • http://first-group.kr/ckupload/files/73366972985.pdfIn PDF document text
    • http://dieta-plus.pl/userfiles/file/xafiwibuso.pdfIn PDF document text
    • https://hab.erdenet.mn/userfiles/files/nabunavuxobeg.pdfIn PDF document text
    • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/b289i7ckekouigaofh42onkdv1/dexesumufujefo.pdfIn PDF document text
    • http://eortak.com/img/fck_temp/file/fapizonere.pdfIn PDF document text
    • http://vdavloeren.be/userfiles/files/83130179886.pdfIn PDF document text
    • http://ahjygjg.com/upload_fck/file/2021-11-28/20211128140537237608.pdfIn PDF document text
    • https://g-mtcc.com/motakamel/Ups/files/vesagapesipogisoka.pdfIn PDF document text
    • http://obraz-tlt.ru/userfiles/file/tufugos.pdfIn PDF document text
    • http://nbnjl.com/userfiles/files/78769104150.pdfIn PDF document text
    • https://www.synergyom.com/kcfinder/upload/files/80580726210.pdfIn PDF document text
    • http://gleneaglehoa.org/images/file/73631756041.pdfIn PDF document text
    • http://merlegdoktor.hu/tmp/81937708620.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/koh181h4gfjfuj949oqftsb8tv/fugezigaterikowamozim.pdfIn PDF document text
    • http://gesundezellen.de/neu/userfiles/file/54592698370.pdfIn PDF document text
    • http://leadershipcareer.kr/fckeditor/_upload/file/lalupax.pdfIn PDF document text
    • https://cissud.eu/uploads/ck_editor/files/61296556796.pdfIn PDF document text
    • http://radiosalsa.fr/php/rs/filesupload/file/62077133264.pdfIn PDF document text
    • http://portaldeaquidauana.com.br/ckfinder/userfiles/files/10142264233.pdfIn PDF document text
    • http://elitacasa.it/images/file/fabanuj.pdfIn PDF document text
    • http://swissies.lt/ckfinder/userfiles/files/famazifupenijofof.pdfIn PDF document text
    • http://unternehmensberatung-hegenbarth.com/userfiles/file/gedolaxivubo.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_off000bf7f2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000bf7f2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000bf7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF7F2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000c0f0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F0D 17272 bytes
SHA-256: 0498fdf86625b8a30f3f32b9e136ad3171bda8d2fd32123bf83e1dd8312917c2
font_02_sfnt_off000c3b95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3B95 11132 bytes
SHA-256: d9b8bc0ffef6c54fc799973a54bafafdcdeba77fb375aa8e1419159b45e9ccad