Malicious PDF — malware analysis report

Static analysis result for SHA-256 450821b670fc0524…

MALICIOUS

PDF

79.3 KB Created: 2022-03-30 15:36:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: a4b159139c097e60d3ff45ae4c3fcb56 SHA-1: f345fe080d26ebdf2d23624d8b04222b671f57cf SHA-256: 450821b670fc05245b1ba8002d2a226799057d9e77a3dbefb020f5dea3d4dd91
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://kunokepipadiri.weebly.com/uploads/1/3/3/9/133997431/jitaduwagojimu.pdf In PDF document text
    • https://zuligenewem.weebly.com/uploads/1/3/4/7/134749141/konizat_buwaloxebi_xugenokik.pdfIn PDF document text
    • https://besukobar.weebly.com/uploads/1/3/1/0/131069863/5e599fa40a16.pdfIn PDF document text
    • https://dkglobalrecruiters.com/admin/public/ckeditor/upload/files/pobifakubibedamupu.pdfIn PDF document text
    • http://for-man-woman.ru/userfiles/files/7143702429.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/161fa9601a2b5c---84006828621.pdfIn PDF document text
    • http://pmrs.ps/userfiles/file/2301751419.pdfIn PDF document text
    • https://yourwebcenter.com/files/file/97261204633.pdfIn PDF document text
    • http://ladyqueen.it/userfiles/files/sufagekebapamap.pdfIn PDF document text
    • http://robodit.ru/kcfinder/upload/files/givepikibexapu.pdfIn PDF document text
    • https://dalibigexewekef.weebly.com/uploads/1/3/2/7/132712129/jimuzi-kigotefetodugu-zoviwojular-fisilojugelu.pdfIn PDF document text
    • https://inwestorfinanse.pl/userfiles/file/1144820762.pdfIn PDF document text
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1621a63399ab94---nenek.pdfIn PDF document text
    • https://noxubesepa.weebly.com/uploads/1/3/7/4/137499292/dffd1f0cfd.pdfIn PDF document text
    • http://internet-trade.eu/UserFiles/file/ravujinadi.pdfIn PDF document text
    • http://tradotel-riviera.com/file/tiremojasojuterot.pdfIn PDF document text
    • http://www.anespo.pt/sgc/Assets/Plugins/CKEditor/kcfinder/Uploads/files/zolilisosefiro.pdfIn PDF document text
    • https://vigiminalaxu.weebly.com/uploads/1/3/1/4/131454394/kevinimasaseran-memomejarusa.pdfIn PDF document text
    • https://www.starvisaservices.co.uk/application/elements/plugins/kcfinder/upload/files/33951098017.pdfIn PDF document text
    • http://imcet.org.tr/kcfinder/upload/files/tuwenutuwaginafaxa.pdfIn PDF document text
    • https://floridainvestment.cz/files/file/6252644503.pdfIn PDF document text
    • https://gencshoworganizasyon.com/upload/ckfinder/files/xevow.pdfIn PDF document text
    • https://lodiwuziwinum.weebly.com/uploads/1/3/4/5/134502140/gugevowi.pdfIn PDF document text
    • https://ragaz.co.za/YmrXLWy8?keyword=charmglow%20grill%20coverPDF 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 extracted file (font_00_sfnt_off0000d1cb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d1cb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1CB 17992 bytes
SHA-256: 43a0b707e460ae041c990087a8a19a1aa43f7b164602dfb85cf1b8f1ef8e49b6
font_01_sfnt_off0001012b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1012B 10488 bytes
SHA-256: 1d3c2e9e268a059d1d2385a9d59bbb828d742e586378875f49a121acaea495ac
font_02_sfnt_off0001191b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1191B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336