Malicious PDF — malware analysis report

Static analysis result for SHA-256 793e24ddbafbe4ae…

MALICIOUS

PDF

374.8 KB Created: 2022-01-13 05:20:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: a31fb7c73dfb6d7bc7dc7c2e0e63aea9 SHA-1: cc10db95b333ef577b4d26b3452766ef20a3276c SHA-256: 793e24ddbafbe4ae0ad9bd775fbfdd415c11a8bb65b84fc364feb0b177e8f3a0
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6731

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://drafthe.ru/uplcv?utm_term=new+additional+mathematics+textbook+answers PDF link annotation
    • http://epodhajska.eu/UserFiles/File/61769806906.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cffe9fecf4d---23668247912.pdfIn PDF document text
    • http://evolution-dev.com/file_media/file_image/file/66781987919.pdfIn PDF document text
    • http://ecogestval.com/userfiles/file/tusokurigixavused.pdfIn PDF document text
    • http://weldingplaza.com/files/file/27481021666.pdfIn PDF document text
    • http://p-jtech.com/userData/board/file/43884387329.pdfIn PDF document text
    • https://cplastik.eu/data/cms/file/tigona.pdfIn PDF document text
    • https://berettyobne.hu/userfiles/file/kigolimiv.pdfIn PDF document text
    • http://korvet-sp.ru/userfiles/file/nuxamuk.pdfIn PDF document text
    • http://metabolizmusonline.hu/images/upload/file/limepamapul.pdfIn PDF document text
    • https://vnnc.vn/img-hdmedia/files/51733306307.pdfIn PDF document text
    • https://laurallo.com/ckfinder/userfiles/files/74586747915.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/11026027266.pdfIn PDF document text
    • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/337463801.pdfIn PDF document text
    • http://kimandyoo.com/userfiles/file/42947765512.pdfIn PDF document text
    • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/080efc3d7db77ffc0f62ad2fcee836e8/37479840952.pdfIn PDF document text
    • https://polaria.cz/images/file/12754990393.pdfIn PDF document text
    • http://xn--b1adrijbbb.xn--p1ai/upload_picture/potor.pdfIn PDF document text
    • http://www.pilartangguh.com/file/riratodesudiviseze.pdfIn PDF document text
    • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bf66c90a94f---31536719901.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ad4b59cf8c7---wunovinovevuvodomukeda.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/8f9a782c62a1a03646f949e122fcfda4/68357212823.pdfIn PDF document text
    • https://pesonabali.dswip.com/ci/userfiles/files/9288929717.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_off0005647d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5647D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00057b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57B1C 20276 bytes
SHA-256: 0103cad81abf435a8046ec7da105ad103fb9f0eb5947c4049fc50cd963cee024
font_02_sfnt_off0005b0fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0FA 11032 bytes
SHA-256: 3bc10d8eaba4724cc37f490577ebcd09925df2c4ecd4754afcf72112b429130c