Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6742b3a2924082…

MALICIOUS

PDF

296.7 KB Created: 2022-04-30 16:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 501948456aa8aa3df9eb758e2fd1b594 SHA-1: 156342f662ee99776b6aba865bb4740c31e0264e SHA-256: ca6742b3a2924082983422493fed7431cd608ca4d91dd392bd4585510282d03e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7513

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://aock.kz/app/webroot/js/kcfinder/upload/files/99413701605.pdf In PDF document text
    • https://tugixafebav.weebly.com/uploads/1/3/2/6/132681891/4070934.pdfIn PDF document text
    • https://rn62ug59c-to8.com/contents/files/14054801772.pdfIn PDF document text
    • https://jepusujejo.weebly.com/uploads/1/3/4/5/134598091/kezabevilo.pdfIn PDF document text
    • https://musazulawikale.weebly.com/uploads/1/3/5/3/135305526/dolixomod.pdfIn PDF document text
    • http://jovanrajsic.net/storage/files/68976384364.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/3442ed5fa69e29a123f4852caff8fb2e/43628569676.pdfIn PDF document text
    • http://abb-impuls.su/kcfinder/upload/files/83566547932.pdfIn PDF document text
    • https://junadiger.weebly.com/uploads/1/3/4/6/134639337/ef227c8002b1a.pdfIn PDF document text
    • https://nocrime.cntwn.org/ckfinder/userfiles/files/87400839415.pdfIn PDF document text
    • https://ponanabolebize.weebly.com/uploads/1/4/1/4/141492894/b6326dd3b4456.pdfIn PDF document text
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623d2c32dcc2b---50665651505.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/88f5e41a81283da35e10c238296e262a/27775936875.pdfIn PDF document text
    • https://liwojugimigazip.weebly.com/uploads/1/3/4/9/134904469/jefaboveliwu_ritepa_jepofomom_firivuto.pdfIn PDF document text
    • https://perfecthospital.net/FCKeditor/file/mamaw.pdfIn PDF document text
    • https://moniraje.weebly.com/uploads/1/3/1/4/131438162/d812e9.pdfIn PDF document text
    • http://playos.net/data/playos.net/uploadfiles/file/95085577359.pdfIn PDF document text
    • https://masomubomifok.weebly.com/uploads/1/3/1/4/131406343/8593426.pdfIn PDF document text
    • http://diamantina-joaillerie.com/ckfinder/userfiles/files/28359641859.pdfIn PDF document text
    • https://subuwufokizewe.weebly.com/uploads/1/3/4/8/134854038/9159862.pdfIn PDF document text
    • http://villa-carlshorst.de/sites/default/files/file/jebigogikizo.pdfIn PDF document text
    • http://escrima-rlp.de/userfiles/file/13759615060.pdfIn PDF document text
    • http://lexnovum.pl/js/kcfinder/upload/files/paximulujibiwulawutega.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620a1ee08e792---13552558219.pdfIn PDF document text
    • http://xn----ctbkoligb6ad4a1f1b.xn--p1ai/_images/files/xejopururike.pdfIn PDF document text
    • https://snpwachq.com/files/js/ckfinder/userfiles/files/sebupis.pdfIn PDF document text
    • https://xejepelurafuxiv.weebly.com/uploads/1/3/4/8/134887300/882b9738cad9c6.pdfIn PDF document text
    • https://limblength-sldf.com/userfiles/file/37868655465.pdfIn PDF document text
    • https://gazonigupeti.weebly.com/uploads/1/3/4/8/134879892/bilidazok_baniki_diwunoper_dokusozigonib.pdfIn PDF document text
    • https://dimazupaw.weebly.com/uploads/1/3/2/8/132814154/86e38728aac839.pdfIn PDF document text
    • http://bdn10.cz/files/file/dejivisufatosajo.pdfIn PDF document text
    • https://bupuxikamofimap.weebly.com/uploads/1/3/4/7/134734142/a3fcd3e8.pdfIn PDF document text
    • https://oriental-kitchens.com/userfiles/files/geruvidetamot.pdfIn PDF document text
    • https://hanoihome.net/img_duhoc/files/velinepajekolejemolijosi.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=rrb+scale+1+admit+card+2019PDF link annotation
    • 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_off00043189.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00043189.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00043189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43189 18576 bytes
SHA-256: 415c06e9ca56c1f74b494783d32d8538c3dffa8298a955b2f67f4c7206a7591e
font_01_sfnt_off000461b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x461B5 10956 bytes
SHA-256: 7967e6effae12790ea330b841fa09ddf136fa8aca525be35beef7e002a334104
font_02_sfnt_off00047b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47B42 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1