Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6431678755fdcc…

MALICIOUS

PDF

69.0 KB Created: 2022-02-26 17:47:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: df8238d76f661210f833ad1e3dc62a77 SHA-1: 71d2661cd8ac516b42a26abc67f551923b40e557 SHA-256: ca6431678755fdccd016486afbd3c18f1ad3737322e2bb784468a3da1d9aed41
181 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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=avicenna+academy+ofsted+report PDF link annotation
    • https://segurodegranizo.ar/noticias/fckeditor/file/51434458947.pdfIn PDF document text
    • https://shieldtech.cz/ckfinder/userfiles/files/seveduzaziwuxitazimiwob.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620a6fdfcbf05---wupugosam.pdfIn PDF document text
    • http://hzeiger.com/userfiles/file/napugaludikuge.pdfIn PDF document text
    • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1617271551ea62---57999292070.pdfIn PDF document text
    • http://araonline.hu/uploads/file/xinasesulolida.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/162068ebe24b54---xefetexusinaxer.pdfIn PDF document text
    • http://phannhan.vn/files/usersfiles/files/kumom.pdfIn PDF document text
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/vc7eh78cdn1gnmd2grg36497ot/5449105658.pdfIn PDF document text
    • http://smarttechsolutionukltd.com/uploaded_files/userfiles/files/tazuzikafas.pdfIn PDF document text
    • https://crossfitbeeshark.ro/app/webroot/files/userfiles/files/37509559282.pdfIn PDF document text
    • http://avvocato-callegaro.it/public/file/36225986601.pdfIn PDF document text
    • http://pantipplaza.com/userfiles/file/19409265006.pdfIn PDF document text
    • https://paperland.bg/uploads/file/kenuxajujowodifixu.pdfIn PDF document text
    • http://qlinairnv.be/userfiles/file/27432306196.pdfIn PDF document text
    • http://bennett-legal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sabosodixo.pdfIn PDF document text
    • http://1544-7419.net/upload/fckeditor/file/movejelisojak.pdfIn PDF document text
    • https://coloradoofficecleaning.comfortvacation.com/userfiles/file/13617543476.pdfIn PDF document text
    • http://chs.yuanjen.com/ckfinder/userfiles/files/duzudinanaj.pdfIn PDF document text
    • https://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/59740261219.pdfIn PDF document text
    • http://tamilannuaire.com/var/www/vhosts/vps296430.ovh.net/tamilannuaire.com/images/file/95158761867.pdfIn PDF document text
    • http://www.barczyk.plwww.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/nulekikonesonus.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_off0000a5f3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000a5f3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a5f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5F3 18400 bytes
SHA-256: 9350a4b0d4493fc67cfe32d1a09ae53ecd60b8f4d370699afbd01f29b2b5e68f
font_01_sfnt_off0000d648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD648 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0000ed68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED68 10896 bytes
SHA-256: 4cffd3464ebeaf26ea8c660d9190c2c9d8ac754ea540a12ef74259c93223701e