Malicious PDF — malware analysis report

Static analysis result for SHA-256 793e2dbb2454dc92…

MALICIOUS

PDF

341.6 KB Created: 2022-01-17 04:18:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 38b5b46636e08278d8f530ee42959c26 SHA-1: fe421cc141c985a0e0931f963e308dc437ab1979 SHA-256: 793e2dbb2454dc92cbbfc6cc71d06260aef62ab0f068c5aedf87376eca56215f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6933

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://medvor.ru/uplcv?utm_term=educational+technology+specialist+study+guide PDF link annotation
    • http://businesslife.com/content/file/falomowe.pdfIn PDF document text
    • https://divanich96.ru/admin/ckfinder/userfiles/files/99224362768.pdfIn PDF document text
    • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/6d28dd6b22339fcef62fb0c4ee2e2663/86560657603.pdfIn PDF document text
    • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a8f4c7409a5---zodovujulesumafeladexux.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/e46d8bcbdbef209b0ee6f6b57c9558f4/55894868182.pdfIn PDF document text
    • http://amblesidewindermere.ca/fckuploads/images/file/kagopigeposawafutewa.pdfIn PDF document text
    • http://vpl-bd.com/assets/ckeditor/kcfinder/upload/files/fizisepapomulizu.pdfIn PDF document text
    • http://kppzp.pl/userfiles/file/gofafoliwo.pdfIn PDF document text
    • http://www.moudclpiu.gov.np/public/kcfinder/upload/files/93651085938.pdfIn PDF document text
    • https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/50818070621.pdfIn PDF document text
    • https://pasarangroup1.com/contents/files/babakimepologate.pdfIn PDF document text
    • http://auburn-properties.com/userfiles/files/givuraganutafukafawag.pdfIn PDF document text
    • http://www.cpiequipos.com/assets/images/user_files/files/zofemajumepupufifisisef.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1616a31aa7d6c4---dagopajewos.pdfIn PDF document text
    • https://toppelletmachine.com/d/files/fetegowiseler.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202111160654119309.pdfIn PDF document text
    • http://lamekatus.ee/uploads/ckeditor/files/38354107808.pdfIn PDF document text
    • http://terredellamagnagrecia.com/userfiles/files/68717490122.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/pupasep.pdfIn PDF document text
    • http://jianianhuayule.a9188.com/upload_files/art_files/files/20211212_123527.pdfIn PDF document text
    • http://areopag-group.ru/sites/default/files/uploads/jewimofijosofok.pdfIn PDF document text
    • https://www.dogandemir.av.tr/paketler/ckfinder/dosyalar/files/tejekibojada.pdfIn PDF document text
    • http://mfahk.com/upload/files/76348749653.pdfIn PDF document text
    • http://doctour.hu/uploads/ckfinder/userfiles/files/90129248890.pdfIn PDF document text
    • https://darman.shasbodco.com/UploadedFiles/New/file/53441989217.pdfIn PDF document text
    • http://www.wiseyoga.nl/kcfinder/upload/files/55416704576.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_off0004e3ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E3AB 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004fa4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA4A 19600 bytes
SHA-256: ddd54532447b9fa3a34afdb174c56fe363d110570f7ceee537e25c7058447dba
font_02_sfnt_off00052de8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52DE8 10892 bytes
SHA-256: 1d41df706b5db1f80536ada1215068fd7326ff14b6e740193aef9328df83da8d