Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8f07bbdaec9a7d…

MALICIOUS

PDF

312.4 KB Created: 2022-01-04 10:48:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: ecdbdfa83021974566031f8e094bb408 SHA-1: 6baf9c330ccb73319f77d54e966b603f230b3b22 SHA-256: 5d8f07bbdaec9a7d24433daba1ca0be012de48a076ef023714d2ed98470c4c5c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7548

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 http://hieuchuan.com/upload/files/49085704769.pdf In PDF document text
    • http://xyr59.com/filespath/files/20211228155021.pdfIn PDF document text
    • https://divinenine.net/userfiles/file/88879505585.pdfIn PDF document text
    • http://nb-magnet.com/upload/files/41338935018.pdfIn PDF document text
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/f879348d9ce28e6a0bae7c1c38bdc3bc/lumabedoxipi.pdfIn PDF document text
    • http://dlzhrjd.com/images/uploadfile/files/28128523416.pdfIn PDF document text
    • http://chromavials.com/d/files/webomovegevizanuvug.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/pokerik.pdfIn PDF document text
    • https://lazdynumokykla.lt/userfiles/file/41015085732.pdfIn PDF document text
    • http://siblom.ru/files/upload/file/44746146081.pdfIn PDF document text
    • http://indcms.testingmachines.com/images/file/jitoxasow.pdfIn PDF document text
    • https://lsv-wittlage.de/ckfinder/userfiles/files/foxofemikosoro.pdfIn PDF document text
    • http://ottuk-e.org/userData/board/file/dufem.pdfIn PDF document text
    • http://samarthservice.com/userfiles/file/24713768781.pdfIn PDF document text
    • https://mlspoland.co/files/file/35967184132.pdfIn PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/47751df03cf5ca4095d6006c3c9e201a/97126619849.pdfIn PDF document text
    • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efdca274c4---xekavijenosefos.pdfIn PDF document text
    • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161b4ebd61f005---990980966.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/8ieq0cdujrnl2007ai7d00embv/kidolovuwomad.pdfIn PDF document text
    • http://kenhuffbuilders.com/userfiles/file/sesozeliz.pdfIn PDF document text
    • http://rcot.by/pics/files/28767016320.pdfIn PDF document text
    • http://es-manzokudou.com/yamituki-n/uploads/files/17078880671.pdfIn PDF document text
    • http://acupunctuuryao.nl/ckfinder/userfiles/files/geputarulexoluwufaku.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/896FEnmJZlk/uplcv?utm_term=creditors+balance+sheet+equationPDF link annotation
    • 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_off00047470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47470 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00048b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B14 10884 bytes
SHA-256: eaffe50a8391bbcd903956319f6c999f789477d443594e59df716c52c82af9fd
font_02_sfnt_off0004a3fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A3FA 17832 bytes
SHA-256: 199999d42d11d1c436cc7101123f1c85fd3187f441c0f9f7068f74958b8c438e