Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c0b9391a2c0f94…

MALICIOUS

PDF

512.1 KB Created: 2022-04-17 11:59:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-01
MD5: dbccf004afbc6c36986d41fa7c7d704c SHA-1: 71fce0d0988561c565423ed62a19794a63823740 SHA-256: 25c0b9391a2c0f94d6c8ea09a34a9b4f76f99bdf587029a16433e994df09d781
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4554

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=3d+wallpapers+for+pc PDF link annotation
    • http://gemmacapitalgroup.com/foto/file/daxowofexexaxi.pdfIn PDF document text
    • http://bwa.olsztyn.pl/bwa3/admin/kcfinder/upload/files/jejojazoronumuba.pdfIn PDF document text
    • https://rewazute.weebly.com/uploads/1/3/4/6/134648352/lizifuwanew_gagigalepum_ziwajeluxulu_najipire.pdfIn PDF document text
    • https://wovegusokab.weebly.com/uploads/1/3/4/8/134850220/wovixo.pdfIn PDF document text
    • https://flmmfg.com/d/files/25205909481.pdfIn PDF document text
    • http://sineadstone.com/userfiles/file/jufidotarawosodamegewasut.pdfIn PDF document text
    • http://gymostrov.org/gymostrov/userfiles/file/lemazegumumisaxigisa.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/ana7iv4i4slh5efb7cncqgdu99/27972047310.pdfIn PDF document text
    • https://kientrucqhouse.com/uploads/image/files/purisomitanogevesolur.pdfIn PDF document text
    • http://look.bio/kcfinder/upload/files/mepadilabojexi.pdfIn PDF document text
    • https://x-art-limited.com/webroot/editor-uploads/files/piluroparakuz.pdfIn PDF document text
    • https://fortworthdental.net/cmsCart/upload/file/65124755015.pdfIn PDF document text
    • https://xtrafitcoaching.com/www/images/files/sijotajeb.pdfIn PDF document text
    • https://loppisidjupdalen.se/images/uploaded/file/pezororoxibe.pdfIn PDF document text
    • https://successstudio.net/userfiles/file/67409651946.pdfIn PDF document text
    • https://rutimupon.weebly.com/uploads/1/3/4/6/134629179/saxuvonepofeni_kasikes.pdfIn PDF document text
    • http://pappteam.hu/userfiles/file/welovixux.pdfIn PDF document text
    • https://febrerasesores.com/uploads/kcfinder/upload/files/wutuwedalowinadomamegum.pdfIn PDF document text
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/93652850555.pdfIn PDF document text
    • http://honeystraw.getrade.net/uploadfiles/file/difamowesewutubozavana.pdfIn PDF document text
    • http://botan-koubou.com/js/kcfinder/upload/files/lutowejipelolafudude.pdfIn PDF document text
    • http://csc0532.com/userfiles/file/20220223124504_nfw69o.pdfIn PDF document text
    • https://www.bsff.com/kcfinder/upload/files/79474782536.pdfIn PDF document text
    • http://ebiddex.com/kcfinder/upload/files/42844238909.pdfIn PDF document text
    • http://matrix-work.com/uploads/files/dofamavovapili.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_off00078d92.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00078d92.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00078d92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D92 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0007a5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A5A4 20352 bytes
SHA-256: 5f0046eb4bf85372aec394fe181274b888bf6cec28834b38b17c781c2beeb1f2
font_02_sfnt_off0007d96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D96A 10480 bytes
SHA-256: eaff2cbb2fc05da7ae9f2089975ca4230dbd08bf2192f956995ac90c0ec05dab