Malicious PDF — malware analysis report

Static analysis result for SHA-256 42531b00bf94a01b…

MALICIOUS

PDF

316.0 KB Created: 2022-02-05 08:33:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: f6aef8475bc2e2d4cdb8a51630c7b755 SHA-1: 14b640ff10beac7b6cdaa2449ec7a1e80529870c SHA-256: 42531b00bf94a01b8c08a69763a0ec6d3eaf58ebe57a0f5b339ad4c0525e767f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6946

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://lovig.co.za/XSRYdR1H?utm_term=brevet+maths+nouvelle+cal%C3%A9donie+2019+pdf PDF link annotation
    • http://phayaotechno.com/UserFiles/File/zixopovejuk.pdfIn PDF document text
    • http://salman-is.com/userfiles/file/50154747503.pdfIn PDF document text
    • http://csc0451.com/userfiles/file/20210705192853_w3isth.pdfIn PDF document text
    • http://dominoliberec.eu/images/file/files/lemejoduziwowa.pdfIn PDF document text
    • http://webyork.co.uk/kcfinder/upload/files/97062428543.pdfIn PDF document text
    • http://khamtribacninh.com/images/files/kosasoworivugajes.pdfIn PDF document text
    • https://maintogelonline2.bet/contents/files/pelukigumurewosinivusi.pdfIn PDF document text
    • http://muaah.ca/userfiles/files/69582952208.pdfIn PDF document text
    • https://ego-sofa.tw/uploads/files/202109191248061505.pdfIn PDF document text
    • http://batteryzone.pk/assets/kcfinder/upload/files/mibimevesubi.pdfIn PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/161800b60142a4---zajagusimivisuxutibujiduw.pdfIn PDF document text
    • http://webminmax.com/userfiles/file/60257362767.pdfIn PDF document text
    • https://servingltda.com/userfiles/file/lixateladul.pdfIn PDF document text
    • https://lee-trading.tw/archive/upload/files/jafujoko.pdfIn PDF document text
    • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/75854114535.pdfIn PDF document text
    • http://www.saldusjauniesiem.lv/login/kcfinder/upload/files/95920633562.pdfIn PDF document text
    • http://www.azurwelcomeservices.com/userfiles/file/31619793127.pdfIn PDF document text
    • https://hzautomatisering.nl/userfiles/file/11830699032.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614d331178e34---32689435712.pdfIn PDF document text
    • http://sisparts.pl/zdjecia/fck/file/tubabevupa.pdfIn PDF document text
    • https://akproauto.net/nbloom/fckuploads/file/49866742943.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/6e22f4c8f5fcc2a036bd60e2d4a29553/76381947314.pdfIn PDF document text
    • https://palacioquintin.com/upload/editor/file/gopimekawutasakav.pdfIn PDF document text
    • http://poslovniimenik.net/firme_data/files/85751034942.pdfIn PDF document text
    • http://soncongnghiepjotun.com/media/ftp/file/93544119237.pdfIn PDF document text
    • https://ntm.mcapps3.cz/multimedia/file/xusibakanivobe.pdfIn PDF document text
    • http://pasted-radio.de/web/files/wogifiwutizutomowop.pdfIn PDF document text
    • https://valergences.fr/userfiles/file/58221035402.pdfIn PDF document text
    • https://myclubowners.travelenvogue.com/userfiles/files/totomimapu.pdfIn PDF document text
    • http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/xebegekudogez.pdfIn PDF document text
    • http://lnshiyue.com/userfiles/file/20210723004712_1178101616.pdfIn PDF document text
    • http://archidaldegan.eu/userfiles/files/pimifoxeroveputomafapuza.pdfIn PDF document text
    • https://magicdiscoradio.hu/userfiles/file/zujivatapifi.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047a44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47A44 18892 bytes
SHA-256: 1fdd583f5b434e99c39c91c76f570fd4fa3f7359e0f01f0dbfe6e1a76a593026
font_01_sfnt_off0004ab1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB1F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004c23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C23F 11720 bytes
SHA-256: 7e01c6493d7f35cd2169fb04f89d34aa7cb24a2d0cccac4a534aebb7ba94f7f2