Malicious PDF — malware analysis report

Static analysis result for SHA-256 258e3ef6c4de06a5…

MALICIOUS

PDF

467.4 KB Created: 2022-02-06 23:21:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 5160906bc2fa9b415ecb01fba3d56fa7 SHA-1: 8db7f3bba0c147588a378589c022b8806b693d77 SHA-256: 258e3ef6c4de06a519e2b70a9542a5ecacb94551f0070c5cfca2353b35519332
176 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4577

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
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://wirut.co.za/XSRYdR1H?utm_term=quantitative+research+data+analysis+pdf PDF link annotation
    • http://fatename.com/uploads/files/202201020623064944.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1613a89479e20f---54563864146.pdfIn PDF document text
    • http://xn--80akazwaeiw.xn--p1ai/editorfiles/file/mujolonigobewilerepu.pdfIn PDF document text
    • http://fueandhair.com/userfiles/files/topaxamejim.pdfIn PDF document text
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/37f553c81c41e163ca20f47df8639074/94835194372.pdfIn PDF document text
    • https://estudiowebcolombia.com/ckfinder/userfiles/files/23124718735.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/161ed78546ac3e---zekugogojefunesag.pdfIn PDF document text
    • https://emilline.dk/ckfinder/userfiles/files/difiwopubaguwi.pdfIn PDF document text
    • http://www.smpnuenen.nl/images/files/15644655861.pdfIn PDF document text
    • http://baby-daycare.com/uploads/files/202110090130466276.pdfIn PDF document text
    • http://ski-experience-japan.com/images/blog//file/geloxedeji.pdfIn PDF document text
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152a0c70ed92---82125631370.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/161a47dca211e3---jufekinusijugaseza.pdfIn PDF document text
    • http://xn--49s538bo8ux8c.net/userfiles/file/liruxad.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/f971b2910b540fc8ed5dce783b954ea3/wemujub.pdfIn PDF document text
    • http://goldartline.ua/userfiles/file/nanareluraliwataxuv.pdfIn PDF document text
    • http://sportsgarten.com/editorData/file/garokovapotijelawa.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1615eef331cbaa---loranagupuko.pdfIn PDF document text
    • http://kazbani.ru/kcfinder/upload/files/zevopefonod.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618360b0d5a78---55034711352.pdfIn PDF document text
    • http://nicolalazzarotto.com/userfiles/files/98044121741.pdfIn PDF document text
    • http://cobmedia.hu/include/58379840246.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/1463cdedaf7e0660f3045b0b252c7c0c/99908670709.pdfIn PDF document text
    • https://francoisdaulte.com/ckfinder/userfiles/files/fipixexopepurokafufap.pdfIn PDF document text
    • http://sireny.net/share/files/53315099646.pdfIn PDF document text
    • https://cyberbirddog.com/userfiles/files/josako.pdfIn PDF document text
    • http://www.acs-pack.fr/kcfinder/upload/files/54044600901.pdfIn PDF document text
    • http://www.detskaoptika.cz/ckfinder/userfiles/files/suxitutukawiw.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/b9ac9be6696f002d960eda419666cf43/jonenivovi.pdfIn PDF document text
    • http://mbeautyconcept.com/upload/content_images/file/94519942566.pdfIn PDF document text
    • https://yakin-surewin.com/media/file/ferinogewonubizodomag.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/b322a5291f02a438f70077b0e29e60aa/wusobebabetiparuzopedon.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_off0006dfd7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006dfd7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006dfd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFD7 10936 bytes
SHA-256: 415c9ea01d739d06c0a285be6930aa5f3df55098c02ce32b7136b7126c561d96
font_01_sfnt_off0006f944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F944 17560 bytes
SHA-256: a8cf33b4a3aeeb298e30e5f1234aa730089186af235c55d979aaa33aa712bd9a
font_02_sfnt_off000726c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x726C2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9