Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d87670a4646d411…

MALICIOUS

PDF

270.2 KB Created: 2022-02-13 20:56:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: ea5c22c27a5016c46d9aa738a911d4ed SHA-1: 4844c400c10f0d34068b28e370f6de20a0aa3797 SHA-256: 5d87670a4646d4117a4d9bf2c1510432a622059a7b4916fed9e6a9208d708ce3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6870

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://podar.co.za/XSRYdR1H?utm_term=crayfish+dissection+lab+report+30a PDF link annotation
    • https://full-flavors.com/img/Data/file/31943589779.pdfIn PDF document text
    • http://sweethomedelivery.com/ckeditor/ckfinder/core/connector/php/uploads/files/91822643387.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/6432166f5adff8e19e6a0c522305bf58/nutinetipixede.pdfIn PDF document text
    • https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/gapajebobuzup.pdfIn PDF document text
    • https://keralatemples.info/ckfinder/userfiles/files/71223128462.pdfIn PDF document text
    • http://high-keenltd.com/userfiles/file/wudavaruzometogivaduvevo.pdfIn PDF document text
    • https://groupburuemas2.com/contents/files/mekososajonad.pdfIn PDF document text
    • http://dienmattroigiasi.com/uploads/files/33296619677.pdfIn PDF document text
    • https://tele-video.ru/upload/files/62160627033.pdfIn PDF document text
    • http://cjmfgxfollow.morefriendship.com/upload/files/zesegixasazegu.pdfIn PDF document text
    • https://medtek.vn/storage/file/16343102155.pdfIn PDF document text
    • https://adci.vn/data/upload/file/kudibojepuxapidiwudip.pdfIn PDF document text
    • https://lyonsinn.com/nbloom/fckuploads/file/46668738100.pdfIn PDF document text
    • http://eshop-kocicinadeje.cz/files/file/tufexe.pdfIn PDF document text
    • http://manavpublicschool.org/manav/userfiles/file/melofetojil.pdfIn PDF document text
    • https://animalplus.hilariousworld.com/nouvelles/files/fefifutawebijibirawabe.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16170d45f55391---golifafivive.pdfIn PDF document text
    • http://henanshuangxin.com/d/files/29070724984.pdfIn PDF document text
    • https://charming-dc.com/uploads/files/202108151408588701.pdfIn PDF document text
    • https://smshealthcareservices.com/ckfinder/userfiles/files/42990652021.pdfIn PDF document text
    • http://mfcpavpos.ru/file/32234053113.pdfIn PDF document text
    • https://bodymart.in/ckfinder/userfiles/files/91281462760.pdfIn PDF document text
    • http://7serve.org/userfiles/file/20211011071554.pdfIn PDF document text
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/ce4bdd8a87c4e0730f742430aa89dc75/61917378060.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/4144414232.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/161f1c0b80a66f---sewilaxebutodamexov.pdfIn PDF document text
    • http://www.amanuttarakhand.org/ckfinder/userfiles/files/godikevirusakogol.pdfIn PDF document text
    • http://ipea.kr/userData/board/file/64566282543.pdfIn PDF document text
    • http://ahkkpcm.org/userfiles/nemomodoguvorupe.pdfIn PDF document text
    • http://nut-shell.net/upload/files/55534159260.pdfIn PDF document text
    • https://parkettworld.com/upload/files/73951518138.pdfIn PDF document text
    • http://www.polni.si/Images/files/dinekijuzijejawefosurev.pdfIn PDF document text
    • http://megat.pl/uploaded/fck_files/file/gipisunizuwetagerebepev.pdfIn PDF document text
    • http://zehanbiopharma.com/upload/files/saveremezegamufabaf.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_off0003c6ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C6EA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003de05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DE05 18872 bytes
SHA-256: c06a79e6e81a140c62b62546326e5e0416906db65f088fbbd21ce62dab27e3b6
font_02_sfnt_off00040ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40EF9 11296 bytes
SHA-256: 43dc0bd9a529af60969693b38cac8c23b0f4a6c6b00f71406a2df99bb9343b14